EP0302388A2 - Device for removing feeder heads and runners from a cast piece - Google Patents

Device for removing feeder heads and runners from a cast piece Download PDF

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Publication number
EP0302388A2
EP0302388A2 EP88112203A EP88112203A EP0302388A2 EP 0302388 A2 EP0302388 A2 EP 0302388A2 EP 88112203 A EP88112203 A EP 88112203A EP 88112203 A EP88112203 A EP 88112203A EP 0302388 A2 EP0302388 A2 EP 0302388A2
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EP
European Patent Office
Prior art keywords
wedge
bodies
longitudinal openings
bolts
runners
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
EP88112203A
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German (de)
French (fr)
Other versions
EP0302388A3 (en
EP0302388B1 (en
Inventor
Ivan Dipl.-Ing. Sandurkov
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.)
Isab Industrieanlagenbau & Co KG GmbH
Original Assignee
Isab Industrieanlagenbau & Co KG GmbH
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Publication of EP0302388A2 publication Critical patent/EP0302388A2/en
Publication of EP0302388A3 publication Critical patent/EP0302388A3/en
Application granted granted Critical
Publication of EP0302388B1 publication Critical patent/EP0302388B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings

Definitions

  • the invention relates to a device for removing feeders and sprues from a casting, a wedge being connected to a displaceable piston and the side faces of the wedge being covered by bodies which can be moved relative to one another.
  • Devices of this type are used, in particular, in school stores where an energy-saving separation of feeders and risers from the casting is desired. This separation is a common operation in the course of casting production.
  • the object of the present invention is to provide a portable device which is simple to manufacture, works effectively and is reliable even in rough operation.
  • the bodies are connected via bolts guided in longitudinal openings to a linear motor to which the piston is assigned, and are held in contact with the side surfaces of the wedge by means of pressure and / or pulling means.
  • the inventive measures create a very simple device, the individual parts of which can be easily detached and replaced, but which nevertheless provides a high level of operational reliability.
  • By guiding bolts in longitudinal openings it is ensured that the body covering the side surfaces of the wedge moves in a simple movement when the wedge is moved outwards and thus the entire force is used to break off the feeders and sprues. If the bodies are formed in a U-shape, this results in easy manufacture and nevertheless high bending rigidity, which in turn benefits operational reliability.
  • the use of springs the length of which can be adjustable under certain circumstances, also makes it possible to easily adjust the contact force of the body on the side surfaces of the wedge.
  • FIG. 1 shows the device according to the invention in the idle state
  • FIG. 2 shows the Device according to the invention in use
  • Figure 3 is a section AA of Figure 2.
  • the device according to the invention consists of a linear motor 1, in which a piston 7 is arranged displaceably.
  • the piston 7 carries a plunger 8 which is movably connected to a wedge 4.
  • the wedge 4 can thus be brought into an operating position according to FIG.
  • the side surfaces of the wedge 4 are at least partially covered by bodies 2.
  • these bodies 2 are U-shaped and thus encompass the wedge 4.
  • the bodies 2 are articulated via bolts 6 to a flange 9 of the linear motor.
  • this flange 10 has longitudinal openings 5 in which the bolts 6 can slide.
  • the bolts can be provided with rollers at their upper end, or a sliding block can be used.
  • the axes of the longitudinal openings are at an angle ⁇ , which corresponds to half the apex angle of the wedge 4, or at a larger angle to the normal plane N of the longitudinal axis of the device.
  • 2 retaining bolts are provided on the bodies, on which the ends of a spring 3 engage. This spring has the effect that the bodies 2 always rest on the side surfaces of the wedge 4 and that when the piston 7 moves back into its starting position, the bodies 2 also return to their starting position.
  • only a single spring is shown, but it is also possible to arrange a plurality of springs.
  • the springs 3 can be replaced by other suitable means, such as hydraulics or pneumatic cylinders and the like.
  • the special arrangement of the longitudinal openings 5 achieves a neutralization of the bending forces on the bodies 2 and the springs 3 ensure that the bodies 2 are always in contact with the side surfaces of the wedge 4, but nevertheless an immediate reaction to a movement of the wedge by a movement of the Body 2 is given to the outside. Because the bodies 2 are U-shaped, they can be easily manufactured and at the same time the bending rigidity of the working bodies 2 is increased.
  • the device according to the invention can be produced very easily since only simple bodies and surfaces are used.
  • the connection of the individual parts is simple and can be easily solved, so that an exchange of the individual parts is possible quickly. Nevertheless, a high level of operational safety is guaranteed, which is a great advantage especially in the rough operation that prevails in foundries.
  • By simply connecting the individual parts it is also possible to clean them quickly and easily and thus remove any dust and particles that may have penetrated between the individual parts.

Abstract

In a device for removing feeder heads and runners from a casting, a wedge 4 is connected to a displaceable piston 7 and the side faces of the wedge 4 are covered by elements 2 which can be moved relative to one another. The elements 2 are connected at one of their ends to a fixed element 10, via bolts 6 and longitudinal openings 5, and the elements 2 are in addition held against the side faces of the wedge 4 by compression and/or tension means 3. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Entfernen von Speisern und Angüssen von einem Gußstück, wobei ein Keil mit einem verschieb­baren Kolben verbunden ist und die Seitenflächen des Keiles von re­lativ zueinander bewegbaren Körpern überdeckt sind.The invention relates to a device for removing feeders and sprues from a casting, a wedge being connected to a displaceable piston and the side faces of the wedge being covered by bodies which can be moved relative to one another.

Derartige Vorrichtungen finden insbesondere bei Geißereibetrieben An­wendung, wo eine energiesparende Abtrennung von Speisern und Steigern vom Gußstück erwünscht ist. Diese Trennung ist ein gebräuchlicher Ar­beitsgang im Zuge der Gußstückfertigung.Devices of this type are used, in particular, in flagship stores where an energy-saving separation of feeders and risers from the casting is desired. This separation is a common operation in the course of casting production.

Aufgabe der vorliegenden Erfindung ist die Schaffung einer tragbaren Einrichtung, die einfach herzustellen ist, wirkungsvoll arbeitet und auch im rauhen Betrieb zuverlässig ist. Erfindungsgemäß wird jetzt bei der eingangs erwähnten Vorrichtung vorgeschalgen, daß die Körper über in Längsöffnungen geführte Bolzen mit einem Linearmotor verbunden sind, dem der Kolben zugeordnet ist, und durch Druck- und/oder Zugein­richtungen mit den Seitenflächen des Keiles in Anlage gehalten sind.The object of the present invention is to provide a portable device which is simple to manufacture, works effectively and is reliable even in rough operation. According to the invention it is now proposed in the device mentioned at the outset that the bodies are connected via bolts guided in longitudinal openings to a linear motor to which the piston is assigned, and are held in contact with the side surfaces of the wedge by means of pressure and / or pulling means.

Durch die erfinderischen Maßnahmen ist eine sehr einfache Vorrichtung geschaffen, deren Einzelteile leicht voneinander gelöst und ausgetauscht werden können, bei der aber troztdem eine hohe Betriebssicherheit gege­ben ist. Durch die Führung von Bolzen in Längsöffnungen ist gewährlei­stet, daß die die Seitenflächen des Keiles abdeckenden Körper sich in einer einfachen Bewegung bei Bewegen des Keiles nach außen verschieben und somit die gesamte Kraft zum Abbrechen der Speiser und Angüsse ver­wendet wird. Bildet man die Körper U-förmig aus, so ergibt sich eine leichte Herstellbarkeit und trotzdem erhält man eine hohe Biege­steifigkeit, was wiederum der Betriebssicherheit zu gute kommt. Auch die Verwendung von Federn, deren Länge unter Umständen einstellbar sein kann, gestattet es, auf einfache Weise die Anlagekraft der Körper an den Seitenflächen des Keiles einzustellen.The inventive measures create a very simple device, the individual parts of which can be easily detached and replaced, but which nevertheless provides a high level of operational reliability. By guiding bolts in longitudinal openings, it is ensured that the body covering the side surfaces of the wedge moves in a simple movement when the wedge is moved outwards and thus the entire force is used to break off the feeders and sprues. If the bodies are formed in a U-shape, this results in easy manufacture and nevertheless high bending rigidity, which in turn benefits operational reliability. The use of springs, the length of which can be adjustable under certain circumstances, also makes it possible to easily adjust the contact force of the body on the side surfaces of the wedge.

Die Erfindung wird nun anhand der Zeichnungen näher dargestellt. Fig.1 zeigt die erfindungsgemäße Vorrichtung im Ruhezustand, Fig.2 zeigt die erfindungsgemäße Vorrichtung im Einsatz und Fig.3 ist ein Schnitt A-A der Fig.2.The invention will now be illustrated with reference to the drawings. 1 shows the device according to the invention in the idle state, FIG. 2 shows the Device according to the invention in use and Figure 3 is a section AA of Figure 2.

Die erfindungsgemäße Vorrichtung besteht aus einem Linearmotor 1, in der ein Kolben 7 verschieblich angeordnet ist. Der Kolben 7 trägt einen Stößel 8, der beweglich mit einem Keil 4 verbunden ist. Bei Betätigung des Linearmotors 1 kann also der Keil 4 in eine Betriebsstellung gemäß Fig.2 gebracht werden. Die Seitenflächen des Keiles 4 werden zumindest teilweise von Körpern 2 abgedeckt. Wie man aus Fig.3 erkannen kann, sind diese Körper 2 U-förmig ausgebildet und umgreifen somit den Keil 4. An ihren Enden sind die Körper 2 über Bolzen 6 an einem Flansch 9 des Li­nearmotors angelenkt. Dieser Flansch 10 trägt bei dem hier dargestellten Ausführungsbeispiel Längsöffnungen 5, in denen die Bolzen 6 gleiten kön­nen. Um die Bewegung der Bolzen 6 in den Längsöffnungen 5 zu verbessern, können die Bolzen an ihrem oberen Ende mit Rollen versehen sein, oder aber man verwendet einen Gleitstein. Die Achsen der Längsöffnungen ste­hen unter einem Winkel α, der der Hälfte des Scheitelwinkels des Kei­les 4 entspricht, oder unter einem größeren Winkel zur Normalebene N der Längsachse der Vorrichtung. Zusätzlich sind an den Körpern 2 Halte­bolzen vorgesehen, an denen die Enden einer Feder 3 angreifen. Diese Feder bewirkt, daß die Körper 2 stets an den Seitenflächen des Keiles 4 anliegen und daß bei einer Rückbewegung des Kolbens 7 in seine Aus­gangslage auch die Körper 2 in ihre Ausgangslage zurückkehren. In den Ausführungsbeispielen ist nur eine einzige Feder dargestellt, es ist jedoch möglich, auch mehrere Federn anzuordnen. Desgleichen können die Federn 3 durch andere geeignete Mittel, wie Hydraulik oder Pneu­matikzylinder und dgl. ersetzt werden.The device according to the invention consists of a linear motor 1, in which a piston 7 is arranged displaceably. The piston 7 carries a plunger 8 which is movably connected to a wedge 4. When the linear motor 1 is actuated, the wedge 4 can thus be brought into an operating position according to FIG. The side surfaces of the wedge 4 are at least partially covered by bodies 2. As can be seen from Figure 3, these bodies 2 are U-shaped and thus encompass the wedge 4. At their ends, the bodies 2 are articulated via bolts 6 to a flange 9 of the linear motor. In the exemplary embodiment shown here, this flange 10 has longitudinal openings 5 in which the bolts 6 can slide. In order to improve the movement of the bolts 6 in the longitudinal openings 5, the bolts can be provided with rollers at their upper end, or a sliding block can be used. The axes of the longitudinal openings are at an angle α, which corresponds to half the apex angle of the wedge 4, or at a larger angle to the normal plane N of the longitudinal axis of the device. In addition, 2 retaining bolts are provided on the bodies, on which the ends of a spring 3 engage. This spring has the effect that the bodies 2 always rest on the side surfaces of the wedge 4 and that when the piston 7 moves back into its starting position, the bodies 2 also return to their starting position. In the exemplary embodiments, only a single spring is shown, but it is also possible to arrange a plurality of springs. Likewise, the springs 3 can be replaced by other suitable means, such as hydraulics or pneumatic cylinders and the like.

Bei Betätigung des Linearmotors 1 wird der Keil 4 verschoben und die schalenförmig ausgebildeten Körper 2 werden von der Achse des Keiles und relativ zueinander wegbewegt. Es ergibt sich eine Verstärkung der Linearmotorkraft nach dem Prinzip der schiefen Ebene quer zur Achse des Keiles 4. Es können somit große Speiserquerschnitte mit geringem menschlichen Kraftaufwand abgebrochen werden. Durch besondere Wahl von Gußkanalprofilen ist eine Optimierung der Bruchlage und ein gu­ter Schutz der Gußstücke möglich. Die Körper 2 können leicht ausge­ tauscht werden und man kann über Adapterstücke eine Anpassung der Vorrichtung an beliebige Abstände zwischen dem Gußstück und dem Spei­ser vornehmen. Durch die besondere Anordung der Längsöffnungen 5 er­reicht man eine Neutralisation der Biegekräfte an den Körpern 2 und die Federn 3 gewährleisten, daß die Körper 2 stets an den Seitenflä­chen des Keiles 4 anliegen, trotzdem aber eine sofortige Reaktion auf eine Bewegung des Keiles durch eine Bewegung der Körper 2 nach außen gegeben ist. Dadurch daß die Körper 2 U-förmig ausgebildet sind, las­sen sie sich leicht herstellen und gleichzeitig erhöht man die Biege­steifigkeit der Arbeitskörper 2.When the linear motor 1 is actuated, the wedge 4 is displaced and the shell-shaped bodies 2 are moved away from the axis of the wedge and relative to one another. The linear motor force is increased according to the principle of the inclined plane transverse to the axis of the wedge 4. Large feeder cross sections can thus be broken off with little human effort. Through a special choice of casting channel profiles, an optimization of the fracture position and a good protection of the castings is possible. The body 2 can easily out can be exchanged and you can use adapters to adapt the device to any distance between the casting and the feeder. The special arrangement of the longitudinal openings 5 achieves a neutralization of the bending forces on the bodies 2 and the springs 3 ensure that the bodies 2 are always in contact with the side surfaces of the wedge 4, but nevertheless an immediate reaction to a movement of the wedge by a movement of the Body 2 is given to the outside. Because the bodies 2 are U-shaped, they can be easily manufactured and at the same time the bending rigidity of the working bodies 2 is increased.

Die erfindungsgemäße Vorrichtung läßt sich sehr leicht herstellen, da nur einfache Körper und Flächen eingesetzt werden. Auch die Verbindung der einzelnen Teile ist einfach und kann leicht gelöst werden, so daß ein Austausch der einzelnen Teile rasch möglich ist. Trotzdem ist aber eine hohe Betriebssicherheit gewährleistet, was insbesondere bei dem rauhen Betrieb, wie er in Gießereibetrieben herrscht, von großem Vor­teil ist. Durch die einfache Verbindung der einzelnen Teile ist es auch möglich, diese rasche und einfach zur reinigen und so eventuell zwischen den einzelnen Teilen eingedrungene Stäube und Partikelchen zu entfernen.The device according to the invention can be produced very easily since only simple bodies and surfaces are used. The connection of the individual parts is simple and can be easily solved, so that an exchange of the individual parts is possible quickly. Nevertheless, a high level of operational safety is guaranteed, which is a great advantage especially in the rough operation that prevails in foundries. By simply connecting the individual parts, it is also possible to clean them quickly and easily and thus remove any dust and particles that may have penetrated between the individual parts.

In vielen Fällen ist es günstig, im Ruhezustand der vorrichtung den Keil über den Flansch zu ziehen, damit auch im Betriebszustand, also dann wenn der Keil sich in der Stellung gemäß Fig.2 befindet, für die Schalen 2 eine Gegenfläche vorhanden ist.In many cases it is expedient to pull the wedge over the flange in the idle state of the device, so that even in the operating state, that is to say when the wedge is in the position according to FIG. 2, there is a counter surface for the shells 2.

Claims (6)

1. Vorrichtung zum Entfernen von Speisern und Angüssen von einem Guß­stück, wobei ein Keil mit einem verschiebbaren Kolben verbunden ist und die Seitenflächen des Keiles von relativ zueinander bewegbaren Körpern überdeckt sind, dadurch gekennzeichnet, daß die Körper (2) über in Längsöffnungen (5) geführte Bolzen (6) mit einem Linearmo­tor (1) verbunden sind, dem der Kolben (7) zugeordnet ist, und durch Druck- und/oder Zugeinrichtungen (3) mit den Seitenflächen des Keiles (4) in Anlage gehalten sind.1. Device for removing feeders and sprues from a casting, a wedge being connected to a displaceable piston and the side faces of the wedge being covered by bodies which can be moved relative to one another, characterized in that the bodies (2) have longitudinal openings (5). guided bolts (6) are connected to a linear motor (1), to which the piston (7) is assigned, and are held in contact with the side surfaces of the wedge (4) by pressure and / or traction devices (3). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die in den Längsöffnungen (5) geführten Bolzen (6) mit einem Gleitstein versehen sind.2. Device according to claim 1, characterized in that the bolts (6) guided in the longitudinal openings (5) are provided with a sliding block. 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die in den Längsöffnungen (5) geführten Bolzen (6) mit Rollen versehen sind.3. Apparatus according to claim 1, characterized in that the bolts (6) guided in the longitudinal openings (5) are provided with rollers. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch ge­kennzeichnet, daß die Achse der Längsöffnungen (5) im wesentlichen nor­mal zu den Seitenflächen des Keiles (4) steht.4. Device according to one of the preceding claims, characterized in that the axis of the longitudinal openings (5) is substantially normal to the side surfaces of the wedge (4). 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch ge­kennzeichnet, daß die Druck- und/oder Zugeinrichtungen durch mindestens eine mit ihren Enden an den Körpern (2) verankerte Zugfeder (1) gegeben sind.5. Device according to one of the preceding claims, characterized in that the pressure and / or tension devices are given by at least one with their ends on the bodies (2) anchored tension spring (1). 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadruch ge­kennzeichnet, daß die Körper schalenförmig ausgebildet sind und den Keil (4) umgreifen.6. Device according to one of the preceding claims, characterized in that the bodies are cup-shaped and encompass the wedge (4).
EP19880112203 1987-08-04 1988-07-28 Device for removing feeder heads and runners from a cast piece Expired - Lifetime EP0302388B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1974/87 1987-08-04
AT197487A AT388320B (en) 1987-08-04 1987-08-04 DEVICE FOR REMOVING FOOD AND POURING FROM A CAST PIECE

Publications (3)

Publication Number Publication Date
EP0302388A2 true EP0302388A2 (en) 1989-02-08
EP0302388A3 EP0302388A3 (en) 1989-10-18
EP0302388B1 EP0302388B1 (en) 1992-09-02

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EP19880112203 Expired - Lifetime EP0302388B1 (en) 1987-08-04 1988-07-28 Device for removing feeder heads and runners from a cast piece

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EP (1) EP0302388B1 (en)
AT (1) AT388320B (en)
DE (1) DE3874254D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998047809A1 (en) * 1997-04-18 1998-10-29 Future Alignments Limited A separating device
GB2328671A (en) * 1997-04-18 1999-03-03 Future Alignments Limited A separating device
NL1011682C2 (en) * 1999-03-26 2000-09-27 Holmatro Ind Equip Separation device for castings.
WO2001066191A1 (en) * 2000-03-03 2001-09-13 Future Alignments Limited Separating device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT1976B (en) * 1899-08-28 1900-08-25 Eugene Forsman
GB2172227A (en) * 1985-03-14 1986-09-17 Sermec Engineering Ltd Hydraulic wedge unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452988A1 (en) * 1979-04-04 1980-10-31 Fonderie Meca Ste Bretonne HYDRAULIC CORNER DEMASSELOTTING DEVICE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT1976B (en) * 1899-08-28 1900-08-25 Eugene Forsman
GB2172227A (en) * 1985-03-14 1986-09-17 Sermec Engineering Ltd Hydraulic wedge unit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998047809A1 (en) * 1997-04-18 1998-10-29 Future Alignments Limited A separating device
GB2328671A (en) * 1997-04-18 1999-03-03 Future Alignments Limited A separating device
GB2328671B (en) * 1997-04-18 1999-06-09 Future Alignments Limited A separating device
US6267354B1 (en) 1997-04-18 2001-07-31 Future Alignments Limited Separating device
NL1011682C2 (en) * 1999-03-26 2000-09-27 Holmatro Ind Equip Separation device for castings.
WO2000057957A1 (en) * 1999-03-26 2000-10-05 B.V. Holmatro Industrial Equipment Apparatus for separating castings
WO2001066191A1 (en) * 2000-03-03 2001-09-13 Future Alignments Limited Separating device
US6880809B2 (en) 2000-03-03 2005-04-19 Future Alignments Limited Separating device

Also Published As

Publication number Publication date
AT388320B (en) 1989-06-12
ATA197487A (en) 1988-11-15
DE3874254D1 (en) 1992-10-08
EP0302388A3 (en) 1989-10-18
EP0302388B1 (en) 1992-09-02

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