EP0325928A2 - Installation for decoring castings - Google Patents

Installation for decoring castings Download PDF

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Publication number
EP0325928A2
EP0325928A2 EP89100306A EP89100306A EP0325928A2 EP 0325928 A2 EP0325928 A2 EP 0325928A2 EP 89100306 A EP89100306 A EP 89100306A EP 89100306 A EP89100306 A EP 89100306A EP 0325928 A2 EP0325928 A2 EP 0325928A2
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EP
European Patent Office
Prior art keywords
frame
hollow body
transport
inner frame
casting
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
EP89100306A
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German (de)
French (fr)
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EP0325928A3 (en
EP0325928B1 (en
Inventor
Dieter Fuenfhausen
Guenter Heppel
Harry Ruppert
Dieter Schmidt
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.)
"fuk" Frolich & Kluepfel Drucklufttechnik & Co KG GmbH
Original Assignee
"fuk" Frolich & Kluepfel Drucklufttechnik & Co KG GmbH
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Filing date
Publication date
Priority claimed from DE19883802384 external-priority patent/DE3802384A1/en
Application filed by "fuk" Frolich & Kluepfel Drucklufttechnik & Co KG GmbH filed Critical "fuk" Frolich & Kluepfel Drucklufttechnik & Co KG GmbH
Priority to AT89100306T priority Critical patent/ATE68733T1/en
Publication of EP0325928A2 publication Critical patent/EP0325928A2/en
Publication of EP0325928A3 publication Critical patent/EP0325928A3/en
Application granted granted Critical
Publication of EP0325928B1 publication Critical patent/EP0325928B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/005—Removing cores by vibrating or hammering

Definitions

  • the invention relates to a device for removing inner cores from castings after the casting metal has hardened.
  • a device for removing inner cores from castings after the casting metal has hardened has already been proposed, which has a vibrating table with means for generating and transmitting vibrational energy to a casting.
  • the vibrating table is rotatably supported about a horizontal and a vertical axis and is equipped with means for generating the respective rotary movement.
  • means of transport are provided for transporting the castings and for removing the castings freed from the molding sand.
  • the purpose of the present invention is to create a further device for removing inner cores from castings after the casting metal has hardened, which is rotatably mounted about two axes.
  • DE-0S 30 10 964 discloses a device for emptying castings having cavities with cavities and channels arranged in different directions, which are filled with core sand, in which the castings rotate simultaneously about an axis and about another axis perpendicular thereto swing and are exposed to vibration. The movements are time-controlled in order to obtain a large number of desired spatial positions in a specific time sequence, so that the outflow of the material located in all cavities is achieved.
  • the known device has a basic support in which an intermediate support is pivotally mounted.
  • the intermediate support has a clamping device which can be rotated with a rotary drive and on which a vibrator is arranged.
  • the swivel angle is at least 200 ° and a maximum of 270 °. In many cases, this swivel angle is not sufficient.
  • the known device is also of complex construction and cannot be used universally for almost any spatial shape of a casting.
  • the object of the invention is to provide a simply constructed, universally usable device for removing inner cores from castings after the casting metal has hardened.
  • the castings 1 are positioned in series one behind the other and are automatically transported on a means of transport 2 into a chamber 3 in the direction of the arrow 4 and first reach the knocking table 6 Wall of the casting applied so that the inner cores break into pieces and the core material is detached from the inner wall of the casting.
  • the casting 1 is conveyed into a vibrating device 7, in which a vibration is first generated, which makes the abrasion generated when tapping free-flowing.
  • the casting is rotated so that the sand has the possibility of flowing outwards from all recesses through the channels and openings from the interior of the casting.
  • the casting 1 is shaken, that is to say set in vibrations of high acceleration and low frequency, with amplitudes being selected whose height is greater than the distance between the inner wall of the casting and the remaining pieces of the core.
  • the inner wall thus meets the core pieces before the upper and lower turning point of the amplitude and further crushes them.
  • the amplitude height is adapted to the increasing distance between the core remnants and the inner wall of the casting.
  • the casting is preferably rotated during the shaking and the shaking is expediently interrupted in the meantime and pouring energy is introduced, as described above, so that the abrasion caused by the shaking can flow off.
  • the buffering effect which is the wear between the inner wall of the casting and the core remnants, switched off and optimized the vibrating energy.
  • the shaking and, where appropriate, trickle vibrations are continued until the core fragments are so small that they fit through the channels and openings of the casting.
  • the simultaneous rotation of the casting while shaking and vibrating means that core pieces do not get stuck in vibration nodes and remain there unreduced.
  • the vibrating device consists essentially of a cuboid frame-like oscillating hollow body 8, which is stored in a cuboid inner frame 9, the inner frame 9 being rotatable about an axis in an outer frame 10, which in turn is arranged about an axis perpendicular to the aforementioned axis on a frame 11 supports, so that the oscillating hollow body 8 is gimbaled.
  • the frame 11 has a square base frame 12, seated on a foundation or on the floor, on which, viewed from the side, approximately triangular, upwardly extending bearing cheeks 13 are arranged on two opposite sides.
  • the rotary shaft 14 of the outer frame 10 is rotatably supported in the upper end region 13a of the bearing cheeks 13.
  • the outer frame 10 is approximately rectangular in shape and has the two longitudinal frame webs 15 and the two transverse frame webs 16. In the middle of the longitudinal frame webs 15, the horizontally projecting rotary shaft 14 is arranged.
  • a pivot bearing 17 is provided in the middle of the crossbars 16.
  • the respective rotary shaft 18 of the inner frame 9 sits in each pivot bearing 17, each of which is in the middle of the frame-like upper wall 19 or
  • Bottom wall 20 of the inner frame 9 is arranged.
  • the inner frame 9 expediently has four corner webs 21 between the walls 19, 20.
  • the hollow oscillating body 8 is seated in the inner frame 9. It is supported against the inner frame 9 with elastic shock and vibration-damping buffer bodies 22.
  • the oscillating hollow body 8 has two opposite side walls 23, the top wall 24 and the bottom 25.
  • the bottom 25 is penetrated in corresponding recesses by rollers 26 of a transport device 27, which is supported in the inner frame 9, in such a way that they or their rollers 26 can be moved in the double arrow direction 28.
  • clamping device 30 On the ceiling wall 24 in the interior of the oscillating hollow body 8 clamping device 30 is attached, which has a press ram 31, which can extend to clamp the casting 1 between the floor 25 and the ceiling wall 24 towards the floor.
  • the transport device 27 is part of the inner frame 9 and does not protrude beyond the inner frame.
  • the rollers 26 protrude slightly above the floor 25 when the transport device 27 is ready for transport.
  • the rollers 26 can be pulled under the level of the bottom 25, so that the casting 1 can be placed on the bottom 25 and clamped with the ram 31.
  • Recesses 32 are provided in the bottom 25, so that the rollers 26 have no contact with the bottom 25 or the oscillating hollow body 8 when the oscillating hollow body 8 is set in vibration.
  • the transport device 33 which is arranged on the outer frame 10, interacts with the transport device 27.
  • a frame 34 with two side webs 35 and a crossbar 36 is attached slightly below the transport plane of the transport means 2 at right angles to the outer frame 10, the transport device 33 being mounted on the crossbar 36.
  • the transport planes of the separate but adjacent transport devices 27 and 33 are aligned with one another and with the transport means 2.
  • the frames 9 and 10 which can rotate about the axes 37 and 38, are arranged so that the transport means 27 and 33 cannot hinder the rotary movements, but nevertheless an almost complete transport path with the transport means 2 in the starting position of the vibrating device ( Fig. 3) form.
  • the frames 9 and 10 and the oscillating hollow body 8 are also constructed such that they do not hinder the transport of the casting in the starting position of the vibrating device and form a passage in the transport direction (FIG. 1)
  • the oscillating hollow body 8 is gimbal-suspended due to the described design of the vibrating device, so that the casting 1 clamped in the oscillating hollow body can assume any desired position by correspondingly rotating the frames 9 and 10.
  • the drive means for rotating the frames 9 and 10 are not shown in order not to disturb the clarity of the drawing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Catalysts (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Jigging Conveyors (AREA)

Abstract

The invention relates to an apparatus for removing internal cores from castings after the solidification of the casting metal, having a vibrating apparatus which has two mutually perpendicular axes for the rotation of the casting, the vibrating apparatus essentially comprising a cuboid vibrating hollow body (8) of frame-like construction which is mounted in buffered fashion in a cuboid inner frame (9), the inner frame (9) being arranged to rotate about an axis in an outer frame (10) which, for its part, is mounted in a stand (11) about an axis perpendicular to the abovementioned axis, with the result that the vibrating hollow body (8) is cardanically suspended. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Entfernen von Innenkernen aus Gußstücken nach dem Erhärten des Gießmetalls.The invention relates to a device for removing inner cores from castings after the casting metal has hardened.

Es ist bereits eine Vorrichtung zum Entfernen von Innen­kernen aus Gußstücken nach dem Erhärten des Gießmetalls vorgeschlagen worden, die einen Vibrationstisch mit Mitteln zum Erzeugen und Über­tragen von Vibrationsenergie auf ein Gußstück aufweist. Der Vibrationstisch ist um eine horizontale und um eine dazu senkrechte Achse drehbar gelagert und ist mit Mit­teln zur Erzeugung der jeweiligen Drehbewegung ausge­rüstet. Zudem sind Transportmittel zum Antransportieren der Gußstücke und zum Abtransportieren der vom Formen­sand befreiten Gußstücke vorgesehen. Zweck der vorlie­genden Erfindung ist, eine weitere Vorrichtung zum Ent­fernen von Innenkernen aus Gußstücken nach dem Erhärten des Gießmetalls zu schaffen, die um zwei Achsen drehbar gelagert ist.A device for removing inner cores from castings after the casting metal has hardened has already been proposed, which has a vibrating table with means for generating and transmitting vibrational energy to a casting. The vibrating table is rotatably supported about a horizontal and a vertical axis and is equipped with means for generating the respective rotary movement. In addition, means of transport are provided for transporting the castings and for removing the castings freed from the molding sand. The purpose of the present invention is to create a further device for removing inner cores from castings after the casting metal has hardened, which is rotatably mounted about two axes.

Aus der DE-0S 30 10 964 ist eine Vorrichtung zum Ent­leeren von Hohlräume aufweisenden Gußstücken mit in unterschiedlicher Richtung angeordneten Hohlräumen und Kanälen, die mit Kernsand gefüllt sind, bekannt, in der die Gußstücke gleichzeitig um eine Achse rotieren und um eine andere dazu senkrechte Achse schwenken und dabei einer Vibration ausgesetzt sind. Die Bewegungsabläufe sind zeitlich gesteuert, um eine Vielzahl gewünschter räumlicher Positionen in einer bestimmten Zeitfolge zu erhalten, damit das Ausfließen des in allen Hohlräumen befindlichen Materials erreicht wird. Die bekannte Vor­richtung verfügt über einen Grundsupport, in dem ein Zwischensupport schwenkbar gelagert ist. Der Zwischen­support weist eine mit einem Drehantrieb rotierbare Aufspannvorrichtung auf, an der ein Vibrator angeordnet ist. Der Schwenkwinkel beträgt mindestens 200° und maximal 270°. Dieser Schwenkwinkel reicht in vielen Fällen nicht aus. Die bekannte Vorrichtung ist außerdem kompliziert aufgebaut und nicht universell für fast jede Raumform eines Gußstücks verwendbar.DE-0S 30 10 964 discloses a device for emptying castings having cavities with cavities and channels arranged in different directions, which are filled with core sand, in which the castings rotate simultaneously about an axis and about another axis perpendicular thereto swing and are exposed to vibration. The movements are time-controlled in order to obtain a large number of desired spatial positions in a specific time sequence, so that the outflow of the material located in all cavities is achieved. The known device has a basic support in which an intermediate support is pivotally mounted. The intermediate support has a clamping device which can be rotated with a rotary drive and on which a vibrator is arranged. The swivel angle is at least 200 ° and a maximum of 270 °. In many cases, this swivel angle is not sufficient. The known device is also of complex construction and cannot be used universally for almost any spatial shape of a casting.

Aufgabe der Erfindung ist, eine einfach aufgebaute, uni­versell verwendbare Vorrichtung zum Entfernen von Innen­kernen aus Gußstücken nach dem Erhärten des Gießmetalls zu schaffen.The object of the invention is to provide a simply constructed, universally usable device for removing inner cores from castings after the casting metal has hardened.

Diese Aufgabe wird durch die Merkmale des Hauptanspruchs gelöst. Vorteilhafte Weiterbildungen der Erfindung werden in den Unteransprüchen gekennzeichnet. Anhand der Zeich­nung wird die Erfindung im folgenden beispielhaft näher erläutert. Es zeigen:

  • Fig. 1 schematisch eine Seitenansicht der Vorrichtung zum Entkernen von Gußstücken,
  • Fig. 2 schematisch eine Frontansicht der Vibriervorrich­tung,
  • Fig. 3 schematisch eine Seitenansicht der Vibriervor­richtung,
  • Fig. 4 eine Draufsicht auf die Vibriervorrichtung,
  • Fig. 5 schematisch eine perspektivische Darstellung der Vibrier­vorrichtung.
This object is solved by the features of the main claim. Advantageous developments of the invention are characterized in the subclaims. The invention is explained in more detail below by way of example with reference to the drawing. Show it:
  • 1 schematically shows a side view of the device for coring castings,
  • 2 schematically shows a front view of the vibrating device,
  • 3 schematically shows a side view of the vibrating device,
  • 4 is a plan view of the vibrating device,
  • Fig. 5 schematically shows a perspective view of the vibrating device.

In der Vorrichtung zum Entfernen von Innenkernen aus Gußstücken 1 werden die Gußstücke 1 in Reihe hinter­einander positioniert automatisch auf einem Transport­mittel 2 in eine Kammer 3 in Pfeilrichtung 4 transpor­tiert und gelangen zunächst auf den Klopftisch 6. Dort wird eine bestimmte Schlag- bzw. Klopfenergie auf die Wandung des Gußstücks aufgebracht, so daß die Innenkerne in Teilstücke zerbrechen und ein Ablösen des Kernmate­rials von der Innenwandung des Gußstücks erfolgt. Nach dem Klopfen wird das Gußstück 1 in eine Vibriervorrich­tung 7 befördert, in der zunächst eine Vibration erzeugt wird, die den beim Klopfen erzeugten Abrieb rieselfähig macht. Gleichzeitig wird das Gußstück gedreht, so daß der Sand die Möglichkeit hat, aus allen Vertiefungen durch die Kanäle und Öffnungen aus dem Innenraum des Gußstücks nach außen zu fließen. Nach dem Entfernen des Abriebs wird das Gußstück 1 gerüttelt, d.h. in Schwingungen hoher Beschleunigung und geringer Frequenz versetzt, wobei Amplituden gewählt werden, deren Höhe größer ist, als der Abstand zwischen Innenwandung des Gußstücks und Reststücken des Kerns beträgt. Die Innen­wandung trifft somit vor dem oberen und dem unteren Wendepunkt der Amplitude auf die Kernstücke und zer­kleinert sie weiter. Wesentlich ist, daß die Amplituden­höhe dem sich vergrößerenden Abstand zwischen Kernrest­stücken und Innenwand des Gußstücks angepaßt wird. Vorzugsweise wird während des Rüttelns das Gußstück gedreht und zweckmäßigerweise zwischenzeitlich das Rütteln unterbrochen und Rieselenergie, wie vorher­gehend beschrieben, eingeleitet, damit der durch das Rütteln entstandene Abrieb abfließen kann. Auf diese Weise wird die Pufferwirkung, die der Abrieb zwischen der Innenwandung des Gußstücks und den Kernreststücken bewirkt, ausgeschaltet und die Rüttelenergie optimiert. Das Rütteln und gegebenenfalls Rieselvibrieren wird so­lange fortgesetzt, bis die Kernbruchstücke so klein sind, daß sie durch die Kanäle und Öffnungen des Gußstücks passen. Die gleichzeitige Drehung des Gußstücks während des Rüttelns und Rieselvibrierens bewirkt, daß Kern­stücke sich nicht in Schwingungsknoten festsetzen und dort unzerkleinert übrig bleiben.In the device for removing inner cores from castings 1, the castings 1 are positioned in series one behind the other and are automatically transported on a means of transport 2 into a chamber 3 in the direction of the arrow 4 and first reach the knocking table 6 Wall of the casting applied so that the inner cores break into pieces and the core material is detached from the inner wall of the casting. After tapping, the casting 1 is conveyed into a vibrating device 7, in which a vibration is first generated, which makes the abrasion generated when tapping free-flowing. At the same time, the casting is rotated so that the sand has the possibility of flowing outwards from all recesses through the channels and openings from the interior of the casting. After the abrasion has been removed, the casting 1 is shaken, that is to say set in vibrations of high acceleration and low frequency, with amplitudes being selected whose height is greater than the distance between the inner wall of the casting and the remaining pieces of the core. The inner wall thus meets the core pieces before the upper and lower turning point of the amplitude and further crushes them. It is essential that the amplitude height is adapted to the increasing distance between the core remnants and the inner wall of the casting. The casting is preferably rotated during the shaking and the shaking is expediently interrupted in the meantime and pouring energy is introduced, as described above, so that the abrasion caused by the shaking can flow off. In this way the buffering effect, which is the wear between the inner wall of the casting and the core remnants, switched off and optimized the vibrating energy. The shaking and, where appropriate, trickle vibrations are continued until the core fragments are so small that they fit through the channels and openings of the casting. The simultaneous rotation of the casting while shaking and vibrating means that core pieces do not get stuck in vibration nodes and remain there unreduced.

Die erfindungsgemäße Vibriervorrichtung besteht im we­sentlichen aus dem quaderförmig rahmenartig aufgebauten Schwinghohlkörper 8, der in einem quaderförmigen Innen­rahmen 9 abgepuffert lagert, wobei der Innenrahmen 9 um eine Achse drehbar in einem Außenrahmen 10 angeordnet ist, der seinerseits um eine zur vorgenannten Achse senkrechte Achse an einem Rahmengestell 11 lagert, so daß der Schwinghohlkörper 8 kardanisch aufgehängt ist.The vibrating device according to the invention consists essentially of a cuboid frame-like oscillating hollow body 8, which is stored in a cuboid inner frame 9, the inner frame 9 being rotatable about an axis in an outer frame 10, which in turn is arranged about an axis perpendicular to the aforementioned axis on a frame 11 supports, so that the oscillating hollow body 8 is gimbaled.

Das Rahmengestell 11 weist einen viereckigen, auf einem Fundament oder auf dem Boden aufsitzenden Grundrahmen 12 auf, an dem an zwei gegenüberliegenden Seiten, von der Seite betrachtet, etwa dreieckförmige, sich nach oben erstreckende Lagerwangen 13 angeordnet sind. Im oberen Endbereich 13a der Lagerwangen 13 lagert drehbar jeweils die Drehwelle 14 des Außenrahmens 10. Der Außen­rahmen 10 ist etwa rechteckförmig ausgebildet und weist die beiden Längsrahmenstege 15 und die beiden Querrahmen­stege 16 auf. In der Mitte der Längsrahmenstege 15 ist jeweils die horizontal nach außen abstehende Drehwelle 14 angeordnet. In der Mitte der Querstege 16 ist jeweils ein Drehlager 17 vorgesehen. In jedem Drehlager 17 sitzt die jeweilige Drehwelle 18 des Innenrahmens 9, die je­weils in der Mitte der rahmenartigen Oberwand 19 bzw.The frame 11 has a square base frame 12, seated on a foundation or on the floor, on which, viewed from the side, approximately triangular, upwardly extending bearing cheeks 13 are arranged on two opposite sides. The rotary shaft 14 of the outer frame 10 is rotatably supported in the upper end region 13a of the bearing cheeks 13. The outer frame 10 is approximately rectangular in shape and has the two longitudinal frame webs 15 and the two transverse frame webs 16. In the middle of the longitudinal frame webs 15, the horizontally projecting rotary shaft 14 is arranged. A pivot bearing 17 is provided in the middle of the crossbars 16. The respective rotary shaft 18 of the inner frame 9 sits in each pivot bearing 17, each of which is in the middle of the frame-like upper wall 19 or

Unterwand 20 des Innenrahmens 9 angeordnet ist. Der Innenrahmen 9 weist zwischen den Wandungen 19, 20 zweck­mäßigerweise vier Eckstege 21 auf.Bottom wall 20 of the inner frame 9 is arranged. The inner frame 9 expediently has four corner webs 21 between the walls 19, 20.

Im Innenrahmen 9 sitzt der Schwinghohlkörper 8. Er ist mit elastischen stoß- und schwingungsdämpfenden Puffer­körpern 22 gegen den Innenrahmen 9 abgestützt. Der Schwinghohlkörper 8 weist zwei sich gegenüberliegende Seitenwandungen 23, die Deckenwandung 24 und den Boden 25 auf. Der Boden 25 wird in entsprechenden Ausnehmungen von Rollen 26 einer Transportvorrichtung 27 durchgriffen, die im Innenrahmen 9 lagert, und zwar derart, daß sie bzw. ihre Rollen 26 in Doppelpfeilrichtung 28 verfahrbar sind. Unter dem Boden 25 sitzt ein Vibrator 29, der Schwingungen auf den Schwinghohlkörper 8 überträgt, wobei die Pufferkörper 22 verhindern, daß die Schwingungen auf den Innenrahmen 9 übertragen werden. An der Decken­wandung 24 ist eine in den Innenraum des Schwinghohl­körpers 8 ragende Spannvorrichtung 30 befestigt, die einen Preßstempel 31 aufweist, der zum Festklemmen des Gußstücks 1 zwischen Boden 25 und Deckenwandung 24 in Richtung Boden ausfahren kann.The hollow oscillating body 8 is seated in the inner frame 9. It is supported against the inner frame 9 with elastic shock and vibration-damping buffer bodies 22. The oscillating hollow body 8 has two opposite side walls 23, the top wall 24 and the bottom 25. The bottom 25 is penetrated in corresponding recesses by rollers 26 of a transport device 27, which is supported in the inner frame 9, in such a way that they or their rollers 26 can be moved in the double arrow direction 28. Under the floor 25 there is a vibrator 29 which transmits vibrations to the oscillating hollow body 8, the buffer bodies 22 preventing the vibrations from being transmitted to the inner frame 9. On the ceiling wall 24 in the interior of the oscillating hollow body 8 clamping device 30 is attached, which has a press ram 31, which can extend to clamp the casting 1 between the floor 25 and the ceiling wall 24 towards the floor.

Die Transportvorrichtung 27 ist Bestandteil des Innen­rahmens 9 und ragt nicht über den Innenrahmen hinaus. Die Rollen 26 stehen etwas über dem Boden 25 über, wenn die Transportvorrichtung 27 transportbereit ist. Die Rollen 26 können unter die Ebene des Bodens 25 gezogen werden, so daß das Gußstück 1 auf dem Boden 25 gesetzt und mit dem Preßstempel 31 festgeklemmt werden kann.The transport device 27 is part of the inner frame 9 and does not protrude beyond the inner frame. The rollers 26 protrude slightly above the floor 25 when the transport device 27 is ready for transport. The rollers 26 can be pulled under the level of the bottom 25, so that the casting 1 can be placed on the bottom 25 and clamped with the ram 31.

Im Boden 25 sind Ausnehmungen 32 vorgesehen, so daß die Rollen 26 keinen Kontakt mit dem Boden 25 bzw. dem Schwinghohlkörper 8 haben, wenn der Schwinghohlkörper 8 in Vibration versetzt ist.Recesses 32 are provided in the bottom 25, so that the rollers 26 have no contact with the bottom 25 or the oscillating hollow body 8 when the oscillating hollow body 8 is set in vibration.

Mit der Transportvorrichtung 27 wirkt die Transportvor­richtung 33 zusammen, die am Außenrahmen 10 angeordnet ist. Zur Lagerung der Transportvorrichtung 33 ist etwas unterhalb der Transportebene des Transportmittels 2 rechtwinklig zum Außenrahmen 10 ein Rahmengestell 34 mit zwei Seitenstegen 35 und einem Quersteg 36 angesetzt, wobei an dem Quersteg 36 die Transportvorrichtung 33 lagert. In der Ausgangsstellung der Vibriervorrichtung (Fig. 1) fluchten die Transportebenen der voneinander getrennten, jedoch benachbarten Transportvorrichtungen 27 und 33 miteinander und mit dem Transportmittel 2.The transport device 33, which is arranged on the outer frame 10, interacts with the transport device 27. To mount the transport device 33, a frame 34 with two side webs 35 and a crossbar 36 is attached slightly below the transport plane of the transport means 2 at right angles to the outer frame 10, the transport device 33 being mounted on the crossbar 36. In the starting position of the vibrating device (FIG. 1), the transport planes of the separate but adjacent transport devices 27 and 33 are aligned with one another and with the transport means 2.

Die Rahmen 9 und 10, die sich um die Achse 37 bzw. 38 drehen können, sind so angeordnet, daß die Transport­mittel 27 und 33 die Drehbewegungen nicht behindern können, dennoch aber eine nahezu lückenlose Transport­bahn mit dem Transportmittel 2 in der Ausgangsstellung der Vibriervorrichtung (Fig. 3) bilden. Die Rahmen 9 und 10 sowie der Schwinghohlkörper 8 sind zudem derart aufgebaut, daß sie in der Ausgangsstellung der Vibrier­vorrichtung den Transport des Gußstücks nicht behindern und einen Durchgang in Transportrichtung bilden (Fig. 1)The frames 9 and 10, which can rotate about the axes 37 and 38, are arranged so that the transport means 27 and 33 cannot hinder the rotary movements, but nevertheless an almost complete transport path with the transport means 2 in the starting position of the vibrating device ( Fig. 3) form. The frames 9 and 10 and the oscillating hollow body 8 are also constructed such that they do not hinder the transport of the casting in the starting position of the vibrating device and form a passage in the transport direction (FIG. 1)

Der Schwinghohlkörper 8 ist aufgrund der beschriebenen Ausgestaltung der Vibriervorrichtung kardanisch aufge­hängt, so daß das im Schwinghohlkörper festgespannte Gußstück 1 durch entsprechendes Drehen der Rahmen 9 und 10 jede gewünschte Stellung einnehmen kann. Die Antriebsmittel zum Drehen der Rahmen 9 und 10 sind nicht abgebildet, um die Übersichtlichkeit der Zeich­nung nicht zu stören.The oscillating hollow body 8 is gimbal-suspended due to the described design of the vibrating device, so that the casting 1 clamped in the oscillating hollow body can assume any desired position by correspondingly rotating the frames 9 and 10. The drive means for rotating the frames 9 and 10 are not shown in order not to disturb the clarity of the drawing.

Claims (16)

1. Vorrichtung zum Entfernen von Innenkernen aus Guß­stücken nach dem Erhärten des Gießmetalls mit einer Vibriervorrichtung, die zwei senkrecht zueinander angeordnete Achsen für das Drehen des Gußstücks auf­weist, dadurch gekennzeich­net, daß die Vibriervorrichtung im wesentlichen aus einem quaderförmig rahmenartig aufgebauten Schwinghohlkörper (8) besteht, der in einem quader­förmigen Innenrahmen (9) abgepuffert lagert, wobei der Innenrahmen (9) um eine Achse drehbar in einem Außenrahmen (10) angeordnet ist, der seinerseits um eine zur vorgenannten Achse senkrechte Achse in einem Rahmengestell (11) lagert, so daß der Schwinghohl­körper (8) kardanisch aufgehängt ist.1. Device for removing inner cores from castings after the casting metal has hardened with a vibrating device which has two axes arranged perpendicular to one another for rotating the casting, characterized in that the vibrating device consists essentially of a cuboid-shaped oscillating hollow body (8), which is buffered in a rectangular inner frame (9), the inner frame (9) being rotatable about an axis in an outer frame (10), which in turn is mounted about an axis perpendicular to the aforementioned axis in a frame (11), so that the Swing hollow body (8) is gimbaled. 2. Vorrichtung nach Anspruch 1, dadurch gekenn­zeichnet, daß das Rahmengestell (11) einen viereckigen, auf einem Fundament oder auf dem Boden aufsitzenden Grundrahmen (12) aufweist, an dem an zwei gegenüberliegenden Seiten, von der Seite be­trachtet, etwa dreieckförmige, sich nach oben er­streckende Lagerwangen (13) angeordnet sind, im oberen Endbereich (13a) der Lagerwangen (13) drehbar jeweils die Drehwelle (14) des Außenrahmens (10) lagert.2. Device according to claim 1, characterized in that the frame (11) has a square, on a foundation or on the ground base frame (12), on the two opposite sides, viewed from the side, approximately triangular, after Above extending bearing cheeks (13) are arranged, in the upper end region (13a) of the bearing cheeks (13) each rotatably supports the rotary shaft (14) of the outer frame (10). 3. Vorrichtung nach Anspruch 2, dadurch gekenn­zeichnet, daß der Außenrahmen (10) etwa recht­eckförmig ausgebildet ist und die beiden Längsrahmen­stege (15) und die beiden Querrahmenstege (16) auf­weist, wobei in der Mitte der Längsrahmenstege (15) jeweils die horizontal nach außen abstehende Dreh­welle (14) angeordnet ist.3. Apparatus according to claim 2, characterized in that the outer frame (10) is approximately rectangular and has the two longitudinal frame webs (15) and the two transverse frame webs (16), with in the middle of the longitudinal frame webs (15) each horizontally outwards protruding rotary shaft (14) is arranged. 4. Vorrichtung nach Anspruch 3, dadurch gekenn­zeichnet, daß in der Mitte der Querstege (16) jeweils ein Drehlager (17) vorgesehen ist, in jedem Drehlager (17) die jeweilige Drehwelle (18) des Innen­rahmens (9) sitzt, die jeweils in der Mitte der rahmen­artigen Oberwand (19) bzw. Unterwand (20) des Innen­rahmens (19) angeordnet ist.4. The device according to claim 3, characterized in that in the middle of the crosspieces (16) each have a pivot bearing (17) is provided, in each pivot bearing (17) the respective rotary shaft (18) of the inner frame (9) sits, each in the middle of the frame-like upper wall (19) or lower wall (20) of the inner frame (19) is arranged. 5. Vorrichtung nach Anspruch 4, dadurch gekenn­zeichnet, daß der Innenrahmen (9) zwischen den Wandungen (19, 20) vier Eckstege (21) aufweist.5. The device according to claim 4, characterized in that the inner frame (9) between the walls (19, 20) has four corner webs (21). 6. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß im Innenrahmen (9) der Schwinghohlkörper (8) sitzt, der mit elastischen stoß- und schwingungsdämpfenden Pufferkörpern (22) gegen den Innenrahmen (9) abge­stützt ist.6. The device according to one or more of claims 1 to 5, characterized in that in the inner frame (9) of the oscillating hollow body (8) is seated, which is supported with elastic shock and vibration-damping buffer bodies (22) against the inner frame (9). 7. Vorrichtung nach Anspruch 6, dadurch gekenn­zeichnet, daß der Schwinghohlkörper (8) zwei sich gegenüberliegende Seitenwandungen (23), die Deckenwandung (24) und den Boden (25) aufweist.7. The device according to claim 6, characterized in that the oscillating hollow body (8) has two opposite side walls (23), the top wall (24) and the bottom (25). 8. Vorrichtung nach Anspruch 7, dadurch gekenn­zeichnet, daß der Boden (25) in entsprechenden Ausnehmungen von Rollen (26) einer Transportvorrich­tung (27) durchgriffen wird, die im Innenrahmen (9) lagert, und zwar derart, daß sie bzw. ihre Rollen (26) in Doppelpfeilrichtung (28) verfahrbar sind.8. The device according to claim 7, characterized in that the bottom (25) is penetrated in corresponding recesses of rollers (26) of a transport device (27) which is mounted in the inner frame (9), in such a way that they or their roles (26) can be moved in the double arrow direction (28). 9. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß unter dem Boden (25) des Schwinghohlkörpers (8) ein Vibrator (29) angeordnet ist, der Schwingungen auf den Schwinghohlkörper (8) überträgt.9. The device according to one or more of claims 1 to 8, characterized in that a vibrator (29) is arranged under the bottom (25) of the oscillating hollow body (8), which transmits vibrations to the oscillating hollow body (8). 10. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß an der Deckenwandung (24) des Schwinghohlkörpers (8) eine in den Innenraum des Schwinghohlkörpers (8) ra­gende Spannvorrichtung (30) befestigt ist, die einen Preßstempel (3l) aufweist, der zum Festklemmen des Gußstücks (l) zwischen Boden (25) und Deckenwandung (24) in Richtung Boden ausgefahren werden kann.10. The device according to one or more of claims 1 to 9, characterized in that on the ceiling wall (24) of the oscillating hollow body (8) in the interior of the oscillating hollow body (8) projecting clamping device (30) is attached, which a press ram (3l ) which can be extended in the direction of the floor to clamp the casting (l) between the floor (25) and the top wall (24). 11. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Transportvorrichtung (27) Bestandteil des Innen­rahmens (9) ist und nicht über den Innenrahmen hinaus­ragt.11. The device according to one or more of claims 1 to 10, characterized in that the transport device (27) is part of the inner frame (9) and does not protrude beyond the inner frame. 12. Vorrichtung nach Anspruch 11, dadurch gekenn­zeichnet, daß die Rollen (26) etwas über dem Boden (25) überstehen,wenn die Transportvorrichtung (24) transportbereit ist und die Rollen (26) eine unter der Ebene des Bodens (25) befindliche Stellung einnehmen, wenn das Gußstück mit dem Preßstempel (31) festgeklemmt ist.12. The apparatus according to claim 11, characterized in that the rollers (26) protrude slightly above the floor (25) when the transport device (24) is ready for transport and the rollers (26) a position below the level of the floor (25) take when the casting is clamped with the press ram (31). 13. Vorrichtung nach Anspruch 11 und/oder 12, dadurch gekennzeichnet, daß im Boden (25) Ausnehmungen (32) für die Rollen (26) vorgesehen sind, so daß die Rollen (26) keinen Kontakt mit dem Boden (25) bzw. dem Schwinghohlkörper (8) haben, wenn der Schwinghohlkörper (8) in Vibration versetzt ist.13. The apparatus according to claim 11 and / or 12, characterized in that in the bottom (25) recesses (32) for the rollers (26) are provided so that the rollers (26) no contact with the bottom (25) or have the oscillating hollow body (8) when the oscillating hollow body (8) is set in vibration. 14. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Transportvorrichtung (27) eine Transport­vorrichtung (33) vorgeordnet ist, die am Außenrahmen (10) lagert.14. The device according to one or more of claims 1 to 13, characterized in that the transport device (27) is arranged upstream of a transport device (33) which is mounted on the outer frame (10). 15. Vorrichtung nach Anspruch 14, dadurch gekenn­zeichnet, daß zur Lagerung der Transportvor­richtung (33) etwas unterhalb der Transportebene des Transportmittels (2) rechtwinklig zum Außenrahmen (10) ein Rahmengestell (34) mit zwei Seitenstegen (35) und einem Quersteg (36) angesetzt ist, wobei an dem Quersteg (36) die Transportvorrichtung (33) lagert.15. The apparatus according to claim 14, characterized in that for storing the transport device (33) slightly below the transport plane of the transport means (2) at right angles to the outer frame (10), a frame (34) with two side webs (35) and a crossbar (36) is attached, the transport device (33) being mounted on the crosspiece (36). 16. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß in der Ausgangsstellung der Vibriervorrichtung die Transportebenen der voneinander getrennten, je­doch benachbarten Transportvorrichtungen (27 und 33) miteinander und mit dem Transportmittel (2) fluchten.16. The device according to one or more of claims 1 to 15, characterized in that in the starting position of the vibrating device, the transport planes of the separate but adjacent transport devices (27 and 33) are aligned with one another and with the transport means (2).
EP89100306A 1988-01-27 1989-01-10 Installation for decoring castings Expired - Lifetime EP0325928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100306T ATE68733T1 (en) 1988-01-27 1989-01-10 DEVICE FOR CORRING OF CASTINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883802384 DE3802384A1 (en) 1987-08-27 1988-01-27 Apparatus for removing cores from castings
DE3802384 1988-01-27

Publications (3)

Publication Number Publication Date
EP0325928A2 true EP0325928A2 (en) 1989-08-02
EP0325928A3 EP0325928A3 (en) 1990-08-01
EP0325928B1 EP0325928B1 (en) 1991-10-23

Family

ID=6346103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100306A Expired - Lifetime EP0325928B1 (en) 1988-01-27 1989-01-10 Installation for decoring castings

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Country Link
EP (1) EP0325928B1 (en)
AT (1) ATE68733T1 (en)
DE (1) DE58900385D1 (en)
ES (1) ES2027426T3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286353A (en) * 1994-02-11 1995-08-16 Fischer Georg Giessereianlagen Unpacking casting clusters
ES2116871A1 (en) * 1995-02-06 1998-07-16 Fischer Georg Giessereianlagen Process and installation for demoulding clusters of castings
GB2385549A (en) * 1999-04-17 2003-08-27 Yoshitaka Aoyama Casting sand shake-out apparatus
GB2348839B (en) * 1999-04-17 2003-10-08 Yoshitaka Aoyama Casting sand shake-out method and its apparatus
FR2850890A1 (en) * 2003-02-10 2004-08-13 Remi Dupuis Blast cleaning device for hollow casting unit e.g. engine block, of automobile, has elastic suspension system to supply mechanical power necessary to vibrate one vibrating shell, when shell is excited to resonance frequency
FR2901161A1 (en) * 2006-05-17 2007-11-23 Disa Serf Device for stripping metal castings, comprises a device for fixing the metal castings forming an inner reception space, where the metal castings are maintained, hammered and subjected to vibrations
FR2914572A1 (en) * 2007-04-05 2008-10-10 Massin Technologies Soc Par Ac UNPACKING DEVICE AND AUTOMATED DISPENSING SYSTEM COMPRISING SAME
EP1997573A1 (en) * 2006-03-23 2008-12-03 Shigayamashita Co., Ltd. Sand shake-out device using vibration
WO2014158098A1 (en) 2013-03-29 2014-10-02 Rc Simit D.O.O. Boring of sand cores from castings

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106735115B (en) * 2016-12-23 2019-03-15 云南昆船机械制造有限公司 A kind of automatic sand cleaning machine in casting workpiece inner cavity

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DE1583579A1 (en) * 1967-07-08 1970-09-17 Badische Maschf Gmbh Process for loosening and pre-cleaning a casting as well as vibrating grate to carry out this process
EP0017363A1 (en) * 1979-03-27 1980-10-15 Bcira Knock-out systems for foundries
DE3010964A1 (en) * 1979-04-04 1980-11-06 Fischer Ag Georg METHOD AND DEVICE FOR EMPTYING WORKPIECES HAVING CAVITIES
GB2067938A (en) * 1980-01-17 1981-08-05 Stoner & Saunders Andover Ltd A casting-core knockout machine
US4718473A (en) * 1985-01-25 1988-01-12 General Kinematics Corporation Vibratory stress relief apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1583579A1 (en) * 1967-07-08 1970-09-17 Badische Maschf Gmbh Process for loosening and pre-cleaning a casting as well as vibrating grate to carry out this process
EP0017363A1 (en) * 1979-03-27 1980-10-15 Bcira Knock-out systems for foundries
DE3010964A1 (en) * 1979-04-04 1980-11-06 Fischer Ag Georg METHOD AND DEVICE FOR EMPTYING WORKPIECES HAVING CAVITIES
GB2067938A (en) * 1980-01-17 1981-08-05 Stoner & Saunders Andover Ltd A casting-core knockout machine
US4718473A (en) * 1985-01-25 1988-01-12 General Kinematics Corporation Vibratory stress relief apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286353A (en) * 1994-02-11 1995-08-16 Fischer Georg Giessereianlagen Unpacking casting clusters
GB2286353B (en) * 1994-02-11 1997-04-09 Fischer Georg Giessereianlagen Process and device for unpacking casting clusters
ES2116871A1 (en) * 1995-02-06 1998-07-16 Fischer Georg Giessereianlagen Process and installation for demoulding clusters of castings
GB2385549A (en) * 1999-04-17 2003-08-27 Yoshitaka Aoyama Casting sand shake-out apparatus
GB2348839B (en) * 1999-04-17 2003-10-08 Yoshitaka Aoyama Casting sand shake-out method and its apparatus
FR2850890A1 (en) * 2003-02-10 2004-08-13 Remi Dupuis Blast cleaning device for hollow casting unit e.g. engine block, of automobile, has elastic suspension system to supply mechanical power necessary to vibrate one vibrating shell, when shell is excited to resonance frequency
EP1997573A1 (en) * 2006-03-23 2008-12-03 Shigayamashita Co., Ltd. Sand shake-out device using vibration
EP1997573A4 (en) * 2006-03-23 2010-12-29 Shigayamashita Co Ltd Sand shake-out device using vibration
FR2901161A1 (en) * 2006-05-17 2007-11-23 Disa Serf Device for stripping metal castings, comprises a device for fixing the metal castings forming an inner reception space, where the metal castings are maintained, hammered and subjected to vibrations
FR2914572A1 (en) * 2007-04-05 2008-10-10 Massin Technologies Soc Par Ac UNPACKING DEVICE AND AUTOMATED DISPENSING SYSTEM COMPRISING SAME
WO2008139110A1 (en) * 2007-04-05 2008-11-20 Massin Technologies, Societe Par Actions Simplifiee Decoring device and automated decoring system including same
WO2014158098A1 (en) 2013-03-29 2014-10-02 Rc Simit D.O.O. Boring of sand cores from castings

Also Published As

Publication number Publication date
ATE68733T1 (en) 1991-11-15
DE58900385D1 (en) 1991-11-28
EP0325928A3 (en) 1990-08-01
EP0325928B1 (en) 1991-10-23
ES2027426T3 (en) 1992-06-01

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