EP0630708B1 - Device for making holes in a casting mould - Google Patents
Device for making holes in a casting mould Download PDFInfo
- Publication number
- EP0630708B1 EP0630708B1 EP94106878A EP94106878A EP0630708B1 EP 0630708 B1 EP0630708 B1 EP 0630708B1 EP 94106878 A EP94106878 A EP 94106878A EP 94106878 A EP94106878 A EP 94106878A EP 0630708 B1 EP0630708 B1 EP 0630708B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- tools
- mould
- tool support
- conveying
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
Definitions
- the invention relates to a device for production openings, for example sprue openings and vent holes, in one in a molded top box located, preferably in a molding machine produced mold from compressed molding sand, wherein cyclically by means of a suitable conveyor Mold boxes, in particular one mold top box alternating with a molded sub-box, in a work area are movable over the device, the Device has a positioning device with the Help tools to make openings in cross and Longitudinal direction of the mold are movable, a first Tool for making a gate or the like and a second tool for making one Vent hole or the like on a common Tool carrier of the positioning device provided are.
- the necessary ones Tools for example funnel milling for the introduction of sprue openings or puncture needles for the production of ventilation holes, each on one Positioning device provided, with the help each associated tool is movable so that the Top of the mold anywhere with a corresponding opening can be provided.
- the positioning devices consist of vertical cantilevers, scales or Sled or the like, by a common drive be moved. Such a positioning device is required for each of the tools because of them their different types of processing not handled together can be. It is also for everyone Tool to provide a separate position control with which Help the tool into its working position quickly and safely can be moved.
- DE-U-85 00 372 is a drilling device for attachment of funnel, riser and vent holes Casting molds known from compacted molding sand.
- This drilling device has a height-adjustable piston a double swivel arm, one at its free end rotatable about a horizontal axis and with different Equipped tools on opposite sides Has tool head.
- the drilling device is with her tool head over the surface of a molding box swiveling, one of the two opposite Tools are used.
- the object of the invention is a device to simplify the type specified at the beginning, that with their help at least two different ones Types of openings can be produced.
- the working range of such a device accordingly includes two consecutive, forced by a funding cycle Positioning of the top mold box.
- Positioning of the top mold box is in each of the two working positions of the Mold top box activated only one of the tools; the other is shut down because a mold sub-box in his work area located.
- top and bottom boxes one behind the other transported, so here the boxes in two successive stations processed with different tools, without having to change tools.
- a single tool carrier including is sufficient the necessary supports, drives and Controls to make the necessary openings in the top the mold, and it’s not just that Effort for the production of such a device considerably reduced, but it also reduces the space requirement, so that the conveyor is much shorter.
- the arrangement is preferably made so that a vertical tool feed directed upwards, whereby each tool is driven separately.
- the tool carrier is designed as a boom is in and across the conveying direction of the mold a traverse of the positioning device is movable, the in turn on a stationary frame of the positioning device is arranged, on which the drive for the tool carrier can be. It is advisable when the tool carrier is so slidable on the traverse is that at least one of the tools in each case Position can be positioned that the top of the mold can be edited at any point.
- the mobility the tool holder is in a favorable manner in the conveying direction as long as the length of a funding cycle.
- the invention Device is a tool in the conveying direction and the other tool in the conveying direction behind the traverse arranged on the tool carrier.
- the Center distance of the tools in the conveying direction the length of a Funding cycle is at least the same, with one being special short execution of the tool carrier results if the Tools are attached to the ends of the tool carrier.
- a conveying device FE transports in a conveying direction FR molds from one work station to the next. 1 and 2 are in the processing state Casting molds made from compacted molding sand and already in the mold boxes on the conveyor contain. One form top box changes each time and a mold lower box on the conveyor FE.
- the FE conveyor conveys the mold boxes a certain clock frequency from a working position to next in which they remain at rest for editing.
- Fig. 1 there is a top mold box 1 in one first work positioning.
- the top mold box 1 With the mold open placed on the conveyor FE so that its top is accessible for processing from below.
- a mold lower box 1 'in the next working positioning which is by the length T the upper box 1 is set in the conveying direction FR.
- the Length T is the time signature of the conveyor FE.
- the upper mold box 1 instead advanced by length T; is in its place now the next mold sub-box 1 '; while on the Form-1 ' no processing takes place, the Mold top box 1 in the two shown in Figs. 1 and 2 Positions can be processed one after the other.
- the one according to the invention Device set up includes a fixed frame GE, on which one transversely to the conveying direction FR extending truss TR is provided stationary.
- a tool carrier WT is on the traverse TR both across the conveying direction FR and freely movable in their direction stored, and equipped with tools 3, 5, on both sides the traverse TR at the ends E1 and E2 of the tool carrier WT are rigidly attached.
- the first tool 3 is as Hopper cutter designed with the help of a sprue is milled into the mold.
- the second is Tool 5 a puncture needle, which is used to form ventilation holes is usable.
- a drive 2 moves the Funnel cutter in rotation and simultaneously gives it the required tool feed WV1 by another Drive 4 for the second tool 5 can be applied alone is.
- the directional arrows R1 and R2 symbolize the mobility of the tool carrier in the conveying direction FR in the respective Work positioning.
- the rack GE symbolically represents a drive 6, which the Tool carrier WT moves so that one of the two tools 3; 5 is ready to work. It is understood that the drive 6 is generally not carried out manually, but programmed accordingly and, if necessary, sensor-controlled is operated. The details are customary and have no connection with the invention; therefore they are omitted.
- FIG. 1 shows an axis spacing A of the tools 3; 5. It is at least equal to the length T that both the distance between two mold boxes and the Cycle path is the same. While in the in the drawing, respectively left work positioning tool 3 is activated, this in any position below the top mold box 1 is movable, the tool 5 is only in the Right work positioning shown in Fig. 2 can be activated. To illustrate this, the possible movements are of the tools 3; 5 entered when the relevant tool is usable. For clarification in each case also its end position remote from the traverse TR dash-dotted lines.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Fixing For Electrophotography (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
Die Erfindung betrifft eine Vorrichtung für die Herstellung von Öffnungen, beispielsweise von Eingußöffnungen und Entlüftungsbohrungen, in einer in einem Form-Oberkasten befindlichen, vorzugsweise in einer Formmaschine hergestellten Gießform aus verdichtetem Formsand, wobei mittels einer geeigneten Fördereinrichtung taktweise Formkästen, insbesondere jeweils ein Form-Oberkasten alternierend mit einem Form-Unterkasten, in einen Arbeitsbereich über der Vorrichtung bewegbar sind, wobei die Vorrichtung eine Positioniereinrichtung aufweist, mit deren Hilfe Werkzeuge zum Einbringen der Öffnungen in Quer- und Längsrichtung der Gießform bewegbar sind, ein erstes Werkzeug zur Herstellung einer Eingußöffnung oder dergleichen und ein zweites Werkzeug zur Herstellung einer Entlüftungsbohrung oder dergleichen auf einem gemeinsamen Werkzeugträger der Positioniereinrichtung vorgesehen sind.The invention relates to a device for production openings, for example sprue openings and vent holes, in one in a molded top box located, preferably in a molding machine produced mold from compressed molding sand, wherein cyclically by means of a suitable conveyor Mold boxes, in particular one mold top box alternating with a molded sub-box, in a work area are movable over the device, the Device has a positioning device with the Help tools to make openings in cross and Longitudinal direction of the mold are movable, a first Tool for making a gate or the like and a second tool for making one Vent hole or the like on a common Tool carrier of the positioning device provided are.
Vorrichtungen dieser Art sind bekannt. Dabei sind die erforderlichen Werkzeuge, beispielsweise Trichterfräsen für das Einbringen von Eingußöffnungen oder Einstichnadeln zur Herstellung von Entlüftungsbohrungen, jeweils an einer Positioniereinrichtung vorgesehen, mit deren Hilfe jedes zugehörige Werkzeug so verfahrbar ist, daß die Oberseite der Gießform an einer beliebigen Stelle mit einer entsprechenden Öffnung versehen werden kann. Zu diesem Zweck bestehen die Positioniereinrichtungen aus senkrecht zueinander bewegbaren Auslegern, Waagen oder Schlitten oder dergleichen, die von einem gemeinsamen Antrieb bewegt werden. Eine solche Positioniereinrichtung ist für jedes der Werkzeuge erforderlich, weil sie wegen ihrer verschiedenen Bearbeitungsarten nicht gemeinsam gehandhabt werden können. Darüber hinaus ist auch für jedes Werkzeug eine separate Lagesteuerung vorzusehen, mit deren Hilfe das Werkzeug schnell und sicher in seine Arbeitsstellung verfahren werden kann.Devices of this type are known. The necessary ones Tools, for example funnel milling for the introduction of sprue openings or puncture needles for the production of ventilation holes, each on one Positioning device provided, with the help each associated tool is movable so that the Top of the mold anywhere with a corresponding opening can be provided. To this For this purpose, the positioning devices consist of vertical cantilevers, scales or Sled or the like, by a common drive be moved. Such a positioning device is required for each of the tools because of them their different types of processing not handled together can be. It is also for everyone Tool to provide a separate position control with which Help the tool into its working position quickly and safely can be moved.
Aus der DE-U-85 00 372 ist eine Bohrvorrichtung zum Anbringen von Trichter-, Steiger- und Luftlochhohlräumen an Gießformen aus verdichtetem Formsand bekannt. Diese Bohrvorrichtung besitzt an einem höhenverstellbaren Kolben einen Doppelschwenkarm, welcher an seinem freien Ende einem um eine waagrechte Achse drehbaren und mit unterschiedlichen Werkzeugen auf gegenüberliegenden Seiten bestückten Werkzeugkopf aufweist. Die Bohrvorrichtung ist mit ihrem Werkzeugkopf über die Fläche eines Formkastens schwenkbar, wobei wahlweise eines der beiden gegenüberliegenden Werkzeuge zum Einsatz kommt.DE-U-85 00 372 is a drilling device for attachment of funnel, riser and vent holes Casting molds known from compacted molding sand. This drilling device has a height-adjustable piston a double swivel arm, one at its free end rotatable about a horizontal axis and with different Equipped tools on opposite sides Has tool head. The drilling device is with her tool head over the surface of a molding box swiveling, one of the two opposite Tools are used.
Die Erfindung hat sich die Aufgabe gestellt, eine Vorrichtung der eingangs näher bezeichneten Art so zu vereinfachen, daß mit ihrer Hilfe mindestens zwei verschiedene Arten von Öffnungen herstellbar sind.The object of the invention is a device to simplify the type specified at the beginning, that with their help at least two different ones Types of openings can be produced.
Erfindungsgemäß wird die Aufgabe mit den Merkmalen des
Anspruches 1 gelöst.According to the invention the task with the features of
Der Arbeitsbereich einer solchen Vorrichtung umfaßt demzufolge zwei durch einen Fördertakt erzwungene, aufeinanderfolgende Positionierungen des Form-Oberkastens. Dabei wird in jeder der beiden Arbeitspositionierungen des Form-Oberkastens jeweils nur eines der Werkzeuge aktiviert; das andere ist währenddessen stillgelegt, weil sich in seinem Arbeitsbereich gerade ein Form-Unterkasten befindet. Werden Ober- bzw. Unterkästen hintereinanderliegend transportiert, so können hier die Kästen in zwei aufeinanderfolgenden Stationen mit unterschiedlichen Werkzeugen bearbeitet werden, ohne daß ein Werkzeugwechsel erforderlich ist.The working range of such a device accordingly includes two consecutive, forced by a funding cycle Positioning of the top mold box. Here is in each of the two working positions of the Mold top box activated only one of the tools; the other is shut down because a mold sub-box in his work area located. Are top and bottom boxes one behind the other transported, so here the boxes in two successive stations processed with different tools, without having to change tools.
Auf diese Weise genügt ein einziger Werkzeugträger einschließlich der erforderlichen Supporte, Antriebe und Steuerungen, um die erforderlichen Öffnungen in die Oberseite der Gießform einzubringen, und es wird nicht nur der Aufwand für die Herstellung einer derartigen Vorrichtung beträchtlich reduziert, sondern es sinkt auch der Raumbedarf, so daß die Fördereinrichtung wesentlich kürzer ausfällt.In this way, a single tool carrier including is sufficient the necessary supports, drives and Controls to make the necessary openings in the top the mold, and it’s not just that Effort for the production of such a device considerably reduced, but it also reduces the space requirement, so that the conveyor is much shorter.
Die Anordnung wird vorzugsweise so getroffen, daS ein senkrecht nach oben gerichteter Werkzeug-Vorschub erfolgt, wobei jedes Werkzeug gesondert angetrieben ist. Es ist vorteilhaft, wenn der Werkzeugträger als Ausleger ausgebildet ist, der in und quer zu der Förderrichtung der Gießform auf einer Traverse der Positioniereinrichtung bewegbar ist, die ihrerseits auf einem ortsfesten Gestell der Positioniereinrichtung angeordnet ist, an der sich auch der Antrieb für den Werkzeugträger befinden kann. Dabei ist es zweckmäßig, wenn der Werkzeugträger auf der Traverse so verschiebbar ist, daß mindestens jeweils eines der Werkzeuge in einer Stellung positionierbar ist, daS die Oberseite der Gießform an jeder beliebigen Stelle bearbeitbar ist. Die Bewegbarkeit des Werkzeugträgers ist in günstiger Weise in Förderrichtung so groß wie die Länge eines Fördertaktes.The arrangement is preferably made so that a vertical tool feed directed upwards, whereby each tool is driven separately. It is beneficial if the tool carrier is designed as a boom is in and across the conveying direction of the mold a traverse of the positioning device is movable, the in turn on a stationary frame of the positioning device is arranged, on which the drive for the tool carrier can be. It is advisable when the tool carrier is so slidable on the traverse is that at least one of the tools in each case Position can be positioned that the top of the mold can be edited at any point. The mobility the tool holder is in a favorable manner in the conveying direction as long as the length of a funding cycle.
Bei einer besonders bevorzugten Ausführung der erfindungsgemäßen Vorrichtung ist ein Werkzeug in Förderrichtung vor und das andere Werkzeug in Förderrichtung hinter der Traverse auf dem Werkzeugträger angeordnet. Dadurch ergibt sich eine besonders gedrängte Bauweise der erfindungsgemäßen Vorrichtung. Um die gesamte Oberseite der Gießform bearbeiten zu können, ist es zweckmäßig, wenn hierbei der Achsabstand der Werkzeuge in Förderrichtung der Länge eines Fördertaktes mindestens gleich ist, wobei sich eine besonders kurze Ausführung des Werkzeugträgers ergibt, wenn die Werkzeuge an den Enden des Werkzeugträgers befestigt sind.In a particularly preferred embodiment of the invention Device is a tool in the conveying direction and the other tool in the conveying direction behind the traverse arranged on the tool carrier. This gives a particularly compact design of the invention Contraption. Around the entire top of the mold To be able to edit, it is useful if the Center distance of the tools in the conveying direction the length of a Funding cycle is at least the same, with one being special short execution of the tool carrier results if the Tools are attached to the ends of the tool carrier.
Die Erfindung wird nachstehend anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert. Es zeigen
- Fig. 1
- eine erfindungsgemäße Vorrichtung mit einer Zuordnung eines Form-Oberkastens zur Bearbeitung einer Eingußöffnung und
- Fig. 2
- desgleichen zur Bearbeitung einer Entlüftungsbohrung.
- Fig. 1
- a device according to the invention with an assignment of a mold upper box for machining a sprue and
- Fig. 2
- likewise for machining a ventilation hole.
Eine Fördereinrichtung FE transportiert in einer Förderrichtung FR Gießformen von einer Arbeitsstation zur nächsten. Im Bearbeitungszustand der Fig. 1 und 2 sind die Gießformen aus verdichtetem Formsand bereits ausgeformt und in den auf der Fördereinrichtung aufliegenden Form-Kästen enthalten. Dabei wechseln sich jeweils ein Form-Oberkasten und ein Form-Unterkasten auf der Fördereinrichtung FE ab. Die Fördereinrichtung FE transportiert die Form-Kästen mit einer bestimmten Taktfrequenz von einer Arbeitsposition zur nächsten, in denen sie für die Bearbeitung in Ruhe verbleiben.A conveying device FE transports in a conveying direction FR molds from one work station to the next. 1 and 2 are in the processing state Casting molds made from compacted molding sand and already in the mold boxes on the conveyor contain. One form top box changes each time and a mold lower box on the conveyor FE. The FE conveyor conveys the mold boxes a certain clock frequency from a working position to next in which they remain at rest for editing.
In der Fig. 1 befindet sich ein Form-Oberkasten 1 in einer
ersten Arbeitspositionierung. Wie die Darstellung zeigt,
ist der Form-Oberkasten 1 mit geöffneter Gießform nach oben
auf der Fördereinrichtung FE abgelegt, so daß seine Oberseite
für eine Bearbeitung von unten her zugänglich ist.
Gleichzeitig befindet sich ein Form-Unterkasten 1' in der
nächstfolgenden Arbeitspositionierung, die um die Länge T
dem Oberkasten 1 in Förderrichtung FR vorgesetzt ist. Die
Länge T ist das Taktmaß der Fördereinrichtung FE. In der
Anordnung der Fig. 2 ist der Form-Oberkasten 1 stattdessen
um die Länge T vorgerückt; an seiner Stelle befindet sich
nun der nächste Form-Unterkasten 1'; während an dem Form-1'
keinerlei Bearbeitung erfolgt, kann der
Form-Oberkasten 1 in den beiden in Fig. 1 und 2 gezeigten
Positionierungen nacheinander bearbeitet werden.In Fig. 1 there is a
Unter der Fördereinrichtung FE und in der Mitte zwischen
den beiden Arbeitspositionierungen ist die erfindungsgemäße
Vorrichtung aufgestellt. Sie umfaßt ein ortsfestes Gestell
GE, auf dem eine quer zur Förderrichtung FR sich
erstreckende Traverse TR ortsfest vorgesehen ist. Ein Werkzeugträger
WT ist auf der Traverse TR sowohl quer zur Förderrichtung
FR als auch in deren Richtung frei beweglich
gelagert, und mit Werkzeugen 3;5 bestückt, die beiderseits
der Traverse TR an den Enden E1 bzw. E2 des Werkzeugträgers
WT starr befestigt sind. Das erste Werkzeug 3 ist dabei als
Trichterfräser ausgeführt, mit dessen Hilfe eine Eingußöffnung
in die Gießform fräsbar ist. Hingegen ist das zweite
Werkzeug 5 eine Einstichnadel, die zur Ausbildung von Entlüftungsbohrungen
benutzbar ist. Ein Antrieb 2 versetzt den
Trichterfräser in Drehung und erteilt ihm gleichzeitig den
erforderlichen Werkzeug-Vorschub WV1, der von einem weiteren
Antrieb 4 für das zweite Werkzeug 5 allein aufbringbar
ist. Die Richtungspfeile R1 und R2 symbolisieren die Bewegbarkeit
des Werkzeugträgers in Förderrichtung FR in der jeweiligen
Arbeitspositionierung. Schließlich ist an dem Gestell
GE ein Antrieb 6 symbolisch dargestellt, welcher den
Werkzeugträger WT so verfährt, daß eines der beiden Werkzeuge
3;5 arbeitsbereit ist. Es versteht sich, daß der Antrieb
6 im allgemeinen nicht manuell ausgeführt wird, sondern
entsprechend programmiert und gegebenenfalls sensorgesteuert
betätigt wird. Die Einzelheiten dazu sind fachüblich
und stehen in keinem Zusammenhang mit der Erfindung;
sie sind deshalb weggelassen.Under the conveyor FE and in the middle between
the two working positions is the one according to the invention
Device set up. It includes a fixed frame
GE, on which one transversely to the conveying direction FR
extending truss TR is provided stationary. A tool carrier
WT is on the traverse TR both across the conveying direction
FR and freely movable in their direction
stored, and equipped with
In der Fig. 1 ist ein Achsabstand A der Werkzeuge 3;5 eingezeichnet.
Er ist mindestens gleich der Länge T, die
sowohl dem Abstand zwischen zwei Form-Kästen als auch dem
Taktweg gleich ist. Während in der in der Zeichnung jeweils
linken Arbeitspositionierung das Werkzeug 3 aktiviert ist,
das dabei in eine beliebige Stellung unterhalb des Form-Oberkastens
1 verfahrbar ist, ist das Werkzeug 5 nur in der
in Fig. 2 gezeigten rechten Arbeitspositionierung aktivierbar.
Um dies zu verdeutlichen, sind die möglichen Bewegungen
der Werkzeuge 3;5 jeweils dann eingetragen, wenn das
betreffende Werkzeug benutzbar ist. Zur Verdeutlichung ist
jeweils außerdem dessen von der Traverse TR entfernte Endstellung
strichpunktiert eingezeichnet.1 shows an axis spacing A of the
Claims (10)
- An apparatus for producing openings, for example casting openings and venting bores, in a casting mould of compacted moulding sand present in a top box of a mould and preferably produced in a moulding machine, wherein moulding boxes, in particular a top box of the mould alternating in each case with a bottom box of the mould, are movable in a clock-timed manner into an operating area by means of a suitable conveying device by way of the apparatus, wherein the apparatus is provided with a positioning device, with the aid of which tools (3, 5) for forming the openings are movable in the transverse and longitudinal directions of the casting mould, [and] a first tool (3) for producing a casting opening or the like and a second tool (5) for producing a venting bore or the like are provided on a common tool support (WT) of the positioning device,
characterized in that
the two tools (3, 5) are arranged in the same direction on the common tool support (WT) and can be locked separately, and the horizontal distance of the tools (3, 5) arranged on the common tool support corresponds approximately to one conveying cycle (T) of the conveying device, so that one tool (3, 5) can be actuated in a first operating positioning of a top box (1) of the mould determined by the conveying device (FE) and the other tool (5, 3) can be actuated in the following operating positioning of the same top box (1) of the mould determined by a conveying cycle (T) in order to produce a respective opening in the casting mould in each case. - An apparatus according to Claim 1, characterized in that the tools (3; 5) are provided in such a way as to result in a tool advance (WV1; WV2) directed vertically upwards.
- An apparatus according to Claim 1 or 2, characterized in that a separate drive (2; 4) is provided for each tool advance (WV1; WV2).
- An apparatus according to one of Claims 1 to 3, characterized in that the tool support (WT) is designed in the form of an arm which is movable in and transversely to the conveying direction (FR) of the casting mould on a cross-member (TR) of the positioning device.
- An apparatus according to Claim 4, characterized in that the cross-member (TR) is provided on a stationary frame (GE) of the positioning device on which the drive (6) for the tool support (WT) is also situated.
- An apparatus according to Claim 4 or 5, characterized in that the tool support (WT) is displaceable on the cross-member (TR) in such a way that at least one of the tools (3; 5) can be positioned in [such] a position that the top of the casting mould can be machined at any desired point.
- An apparatus according to one of Claims 1 to 6, characterized in that the movability of the tool support (WT) in the conveying direction (FR) is at least as great as the length (T) of a conveying cycle.
- An apparatus according to one of Claims 1 to 7, characterized in that one tool (3; 5) is arranged on the tool support (WT) in front of the cross-member (TR) in the conveying direction (FR) and the other tool (5; 3) is arranged on the tool support (WT) behind the cross-member (TR) in the conveying direction (FR).
- An apparatus according to Claim 8, characterized in that the axial distance (A) of the tools (3; 5) in the conveying direction (FR) is at least equal to the length (T) of a conveying cycle.
- An apparatus according to one of Claims 8 and 9, characterized in that the tools (3; 5) are secured to the ends (E1; E2) of the tool support (WT).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9309398U DE9309398U1 (en) | 1993-06-24 | 1993-06-24 | Device for making openings in a mold |
| DE9309398U | 1993-06-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0630708A2 EP0630708A2 (en) | 1994-12-28 |
| EP0630708A3 EP0630708A3 (en) | 1996-07-10 |
| EP0630708B1 true EP0630708B1 (en) | 1999-03-24 |
Family
ID=6894790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94106878A Expired - Lifetime EP0630708B1 (en) | 1993-06-24 | 1994-05-03 | Device for making holes in a casting mould |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0630708B1 (en) |
| DE (3) | DE9309398U1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074390B (en) * | 2010-09-01 | 2012-12-26 | 胡建强 | Top-impacting-prevention limit device |
| CN102151805A (en) * | 2010-11-16 | 2011-08-17 | 苏州苏铸成套装备制造有限公司 | Air hole drilling device |
| CN105108117B (en) * | 2015-09-15 | 2017-11-28 | 浙江省机电设计研究院有限公司 | A kind of mechanism and method that can realize sandbox pulsation and continuous conveying simultaneously |
| DE102017131280A1 (en) | 2017-12-22 | 2019-06-27 | Chemex Foundry Solutions Gmbh | A method of manufacturing a molded article and a feeder insert for use in such a method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2724880A (en) * | 1952-03-11 | 1955-11-29 | Koss Walter | Power driven riser and pouring sprue cutter |
| DE1051464B (en) * | 1956-05-03 | 1959-02-26 | Badische Maschinenfabrik A G S | Device for drilling one or more pouring funnels into the upper box shape in automatic molding systems |
| DE2726876C2 (en) * | 1977-06-15 | 1983-11-24 | BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe | Method for attaching air pipes or risers to foundry molds made of foundry sand and device for carrying out the method |
| CS224690B1 (en) * | 1982-05-26 | 1984-01-16 | Jiri Kozelka | Device for shaping vents in a mould |
| JPS6192755A (en) * | 1984-10-13 | 1986-05-10 | Sintokogio Ltd | Automatic sprue forming device |
| DE8500372U1 (en) * | 1985-01-09 | 1985-04-04 | Buderus Ag, 6330 Wetzlar | DRILLING DEVICE |
| DE4242418C2 (en) * | 1992-12-16 | 2001-03-01 | Wagner Heinrich Sinto Masch | Method and device for producing ventilation holes in a casting mold |
-
1993
- 1993-06-24 DE DE9309398U patent/DE9309398U1/en not_active Expired - Lifetime
- 1993-07-31 DE DE4325981A patent/DE4325981C1/en not_active Expired - Fee Related
-
1994
- 1994-05-03 EP EP94106878A patent/EP0630708B1/en not_active Expired - Lifetime
- 1994-05-03 DE DE59407986T patent/DE59407986D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0630708A2 (en) | 1994-12-28 |
| DE9309398U1 (en) | 1993-08-26 |
| DE59407986D1 (en) | 1999-04-29 |
| DE4325981C1 (en) | 1994-12-22 |
| EP0630708A3 (en) | 1996-07-10 |
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