EP0722373A1 - Shooting head filling device - Google Patents

Shooting head filling device

Info

Publication number
EP0722373A1
EP0722373A1 EP94928751A EP94928751A EP0722373A1 EP 0722373 A1 EP0722373 A1 EP 0722373A1 EP 94928751 A EP94928751 A EP 94928751A EP 94928751 A EP94928751 A EP 94928751A EP 0722373 A1 EP0722373 A1 EP 0722373A1
Authority
EP
European Patent Office
Prior art keywords
filling
machine frame
filling device
weighing
weight
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
EP94928751A
Other languages
German (de)
French (fr)
Other versions
EP0722373B1 (en
Inventor
Werner Landua
Werner Pichler
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.)
Adolf Hottinger Maschinenbau GmbH
Original Assignee
Adolf Hottinger Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Adolf Hottinger Maschinenbau GmbH filed Critical Adolf Hottinger Maschinenbau GmbH
Publication of EP0722373A1 publication Critical patent/EP0722373A1/en
Application granted granted Critical
Publication of EP0722373B1 publication Critical patent/EP0722373B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C19/00—Components or accessories for moulding machines
    • B22C19/04—Controlling devices specially designed for moulding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/23—Compacting by gas pressure or vacuum
    • B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Definitions

  • the invention relates to a device for filling shot heads with molding materials, with a storage container for molding material, an outlet member for discharging the molding material into the shooting head and a closure device for closing the filling device comprising the outlet member, the filling device for immersing the Exhaust member is vertically movable in the shot head to be filled on a machine frame.
  • Core shooters have been known in foundry technology for many years. To cast molded parts, the casting cores or molds are usually produced in separate parts, brought together and connected to one another to form a casting mold. An essential part of the core shooters are the so-called shot heads with the shot plates carrying the shot nozzles.
  • Form sand, in particular core sand, i.e. Quartz sand which has already been mixed or coated with binder is poured into the shot heads in question and from there it is blown or shot into the respective molds at very high air pressure through the nozzles arranged in the shot plate.
  • a device for filling the shot heads with molding materials is already known from DE 41 28 952 C1, but this is extremely problematic with regard to monitoring the filling status of this device.
  • the filling state of the known device in particular in the area of the storage container, is namely determined by means of measuring probes projecting into the storage container from the outside or ending flush with the inner wall of the storage container, these measuring probes being provided in different positions for determining defined filling levels.
  • these level sensors have at least small steps or discontinuous transitions in the wall on the measurement side, ie towards the interior of the storage container, and thus form critical areas where the non-free-flowing or moist mold can stick or stick to the fabric.
  • the present invention is therefore based on the object of designing and developing a device for filling shot heads of the type in question in such a way that the filling state of the storage container can be determined with simple means or a filling of the filling device can be precisely specified and also reproduced .
  • the device according to the invention for filling shot heads achieves the above object through the features of patent claim 1.
  • the device according to the invention is designed in such a way that a weighing device for determining the weight of the entire filling device is arranged between the filling device and the machine frame.
  • the method of determining the fill level by means of measuring probes which has been proven for years, has been abandoned. Rather, it has been recognized that the filling state of the filling device or the storage container can be determined without adversely affecting the storage container in that the weight of the entire filling device is determined.
  • the filling state of the filling device or the storage container can be determined without adversely affecting the storage container in that the weight of the entire filling device is determined.
  • the weighing device is adjusted or zeroed to the net weight of the entire filling device, so that the weight of the molding material located in the filling device can be determined directly by means of the weighing device.
  • the zeroing to be carried out with respect to the filling device would have the great advantage that a corresponding display device only shows the weight corresponding to the filled molding material, with a direct correlation to the filling condition - on the basis of the bulk density of the molding material and the volume-dependent volume - after processing could also be displayed directly by a processor.
  • a filling of the filling device could be controlled via the data obtained in this way, the amount of molding material required for filling a shot head as well as the number of shot heads to be filled with the contents of the filling device - with one filling - also having to be taken into account here.
  • the weighing device could be articulated on the filling device and act between the filling device and the machine frame. Additional guides or further articulations between the filling device and the machine frame are advantageous for reasons of stability, it only being necessary to ensure that the weight of the filling device actually acts on the weighing device.
  • the weighing device could also be articulated on the machine frame and also act between the machine frame and the filling device. With regard to the articulation of the weighing device, it is only necessary to ensure that it is operatively connected on the one hand to the filling device or a holding part of the filling device and on the other hand to the machine frame or a corresponding holding part of the machine frame and there the mass of the filling device acts unhindered or without external influences on the weighing device.
  • the weighing device is assigned to a lifting device which is articulated on the machine frame or on the filling device and acts between the machine frame and the filling device.
  • This lifting device brings about the vertical mobility of the filling device for immersing the outlet member in the shooting head.
  • the lifting device could comprise a cylinder-piston arrangement serving as a drive, wherein a weighing cell serving as a transmitter of the weighing device could in turn be an integral part of the cylinder-piston arrangement.
  • the force absorption could take place via load cells, on which the mass of the filling device acts directly or indirectly, for example also via a hydraulic pressure medium.
  • an inventive device for filling shot heads with a weighing device for determining the weight of the filling device.
  • the single figure shows a schematic representation of a device for filling shot heads 1 with molding materials 2, with a storage container 3 for molding material 2, an outlet member 4 for discharging the molding material 2 into the shot head 1 and a closing device 5 for closing the outlet member 4 comprising the filling device 6, the filling device 6 for immersing the outlet member 4 in the shot head 1 to be filled on a machine frame 7 vertically is movably supported.
  • a weighing device 8 for determining the weight of the entire filling device 6 is arranged between the filling device 6 and the machine frame 7. It is important here that the weighing device 8 is set or zeroed to the net weight of the filling device 6, so that the weight of the molding material 2 located in the filling device 6 can be determined by means of the weighing device 8, which is only shown schematically here.
  • the single figure further shows that the weighing device 8 is articulated on the one hand on the filling device 6 or on a holder 9 provided there and on the other hand on a lifting device 10 acting between the machine frame 7 and the filling device 6 and thus between the filling device 6 and the machine frame 7 acts.
  • the weighing device 8 it is also possible to integrate the weighing device 8 into the lifting device 10, whereby the weight can be determined with the aid of a pressure which is increased in a cylinder-piston arrangement due to the mass of the filling device 6.
  • the teaching claimed here relates in principle to the determination of the filling state of a device for filling shot heads, namely on the basis of a weight determination of the filling device. Any other refinements of the teaching are conceivable without being restricted to the exemplary embodiment mentioned above merely by way of example.

Abstract

A device for filling shooting heads (1) with moulding materials (2) has a reservoir (3) for moulding material (2), an outlet member (4) for discharging moulding material (2) into the shooting head (1) and a filling member (6) with a closure member (5) for closing the outlet member (4). The filling member (6) is vertically movable on a machine frame (7) to allow the outlet member (4) to be immersed into the shooting head (1) to be filled. In order to fill the filling member (6) with moulding material in an exactly predeterminable and reproducible manner and to accurately determine the filling level of the filling member (6), a weighing device (8) arranged between the filling member (6) and the machine frame (7) determines the weight of the filling member (6).

Description

"Vorrichtung zum Füllen von Schußköpfen" "Device for filling shot heads"
Die Erfindung betrifft eine Vorrichtung zum Füllen von Schu߬ köpfen mit Formstoffen, mit einer einen Vorratbehälter für Formstoff, ein Auslaßorgan zum Auslassen des Formstoffs in den Schußkopf und eine Verschlußeinrichtung zum Schließen des Aus¬ laßorgans umfassenden Fülleinrichtung, wobei die Fülleinrich¬ tung zum Eintauchen des Auslaßorgans in den zu füllenden Schu߬ kopf an einem Maschinengestell vertikal bewegbar gehaltert ist.The invention relates to a device for filling shot heads with molding materials, with a storage container for molding material, an outlet member for discharging the molding material into the shooting head and a closure device for closing the filling device comprising the outlet member, the filling device for immersing the Exhaust member is vertically movable in the shot head to be filled on a machine frame.
In der Gießereitechnik sind seit vielen Jahren Kernschießma¬ schinen bekannt. Zum Gießen von Formstücken werden die Gieße¬ reikerne oder Formen meist in getrennten Teilen hergestellt, zusammengeführt und miteinander zu einer Gußform verbunden. Ein wesentlicher Bestandteil der Kernschießmaschinen sind die sog. Schußköpfe mit den die Schußdüsen tragenden Schußplatten. Form¬ sand, insbesondere Kernsand, d.h. mit Bindemittel bereits ver¬ mengter bzw. beschichteter Quarzsand, wird in die in Rede ste¬ henden Schußköpfe eingefüllt und von dort aus mit sehr hohem Luftdruck durch die in der Schußplatte angeordneten Düsen in die jeweiligen Formen hineingeblasen bzw. hineingeschossen.Core shooters have been known in foundry technology for many years. To cast molded parts, the casting cores or molds are usually produced in separate parts, brought together and connected to one another to form a casting mold. An essential part of the core shooters are the so-called shot heads with the shot plates carrying the shot nozzles. Form sand, in particular core sand, i.e. Quartz sand which has already been mixed or coated with binder is poured into the shot heads in question and from there it is blown or shot into the respective molds at very high air pressure through the nozzles arranged in the shot plate.
Aus der DE 41 28 952 Cl ist bereits eine Vorrichtung zum Befül- len der Schußköpfe mit Formstoffen bekannt, die jedoch hin¬ sichtlich einer Überwachung des Füllzustandes dieser Vorrich¬ tung äußerst problematisch ist. Der Füllzustand der bekannten Vorrichtung, insbesondere im Bereich des Vorratbehälters, wird nämlich mittels von außen in den Vorratbehälter hineinragende bzw. bündig mit der Innenwandung des Vorratbehälters endenden Meßsonden ermittelt, wobei diese Meßsonden in unterschiedlichen Hol n zur Ermittlung definierter Füllstände vorgesehen sind. Diese Füllstandssonden weisen jedoch meßseitig, d.h. zum Inne¬ ren des Vorratbehälters hin, zumindest kleine Stufen bzw. un¬ stetige Übergänge in der Wandung auf und bilden somit kritische Bereiche, an denen der nicht rieselfähige bzw. feuchte Form- stoff hängenbleiben bzw. anhaften kann. Im Laufe mehrerer Fül¬ lungen bilden sich hier verkrustende Aufbauten, die von der Meßsonde als Füllstand bzw. Formstoff detektiert werden. Folg¬ lich birgt die Vorkehrung der hier in Rede stehenden Meßsonden einen systemimmanenten Fehler dahingehend in sich, daß die Me߬ sonde selbst Ursache für eine einen Füllstand vortäuschende falsche Meßsituation aufgrund von Materialansammlungen im Be¬ reich der Meßsonde ist.A device for filling the shot heads with molding materials is already known from DE 41 28 952 C1, but this is extremely problematic with regard to monitoring the filling status of this device. The filling state of the known device, in particular in the area of the storage container, is namely determined by means of measuring probes projecting into the storage container from the outside or ending flush with the inner wall of the storage container, these measuring probes being provided in different positions for determining defined filling levels. However, these level sensors have at least small steps or discontinuous transitions in the wall on the measurement side, ie towards the interior of the storage container, and thus form critical areas where the non-free-flowing or moist mold can stick or stick to the fabric. In the course of several fillings, crusty structures form here, which are detected by the measuring probe as a fill level or molding material. Consequently, the provision of the measuring probes in question harbors a system-inherent error in that the measuring probe itself is the cause of an incorrect measuring situation simulating a filling level due to material accumulations in the region of the measuring probe.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum Füllen von Schußköpfen der in Rede stehen¬ den Art derart auszugestalten und weiterzubilden, daß mit ein¬ fachen Mitteln der Füllzustand des Vorratbehälters feststellbar bzw. eine Füllung der Fülleinrichtung exakt vorgebbar und auch reproduzierbar ist.The present invention is therefore based on the object of designing and developing a device for filling shot heads of the type in question in such a way that the filling state of the storage container can be determined with simple means or a filling of the filling device can be precisely specified and also reproduced .
Die erfindungsgemäße Vorrichtung zum Füllen von Schußköpfen löst die voranstehende Aufgabe durch die Merkmale des Patentan¬ spruches 1. Danach ist die erfindungsgemäße Vorrichtung derart ausgebildet, daß zwischen der Fülleinrichtung und dem Maschi¬ nengestell eine Wägeeinrichtung zur Ermittlung des Gewichts der gesamten Fülleinrichtung angeordnet ist.The device according to the invention for filling shot heads achieves the above object through the features of patent claim 1. The device according to the invention is designed in such a way that a weighing device for determining the weight of the entire filling device is arranged between the filling device and the machine frame.
In erfindungsgemäßer Weise ist von der seit Jahren bewährten Methode der Ermittlung des Füllstandes mittels Meßsonden abge¬ gangen worden. Vielmehr ist erkannt worden, daß sich der Füll¬ zustand der Fülleinrichtung bzw. des Vorratbehälters ohne Be¬ einträchtigung des Vorratbehälters dadurch feststellen läßt, daß nämlich das Gewicht der gesamten Fülleinrichtung ermittelt wird. Im Rahmen einer einfachsten Ausgestaltung der erfindungs¬ gemäßen Vorrichtung könnte man vor Beginn des ersten Füllens das Netto-Gewicht der Fülleinrichtung ermitteln und müßte nach einer entsprechenden Gewichtsermittlung bei gefüllter Füllein¬ richtung von dem Brutto-Gewicht das zuvor ermittelte Netto-Ge¬ wicht abziehen. Bei bekannter' Schüttdichte der Formstoffe ließe sich dann - sofern erforderlich - das Schüttvolumen berechnen, wobei die zum Kernschießen erforderliche Menge an Formstoff ohne weiteres auch per Gewichtsangabe definierbar ist.In the manner according to the invention, the method of determining the fill level by means of measuring probes, which has been proven for years, has been abandoned. Rather, it has been recognized that the filling state of the filling device or the storage container can be determined without adversely affecting the storage container in that the weight of the entire filling device is determined. In the simplest embodiment of the device according to the invention, one could determine the net weight of the filling device before the first filling began and, after a corresponding weight determination with the filling device filled, would have to subtract the previously determined net weight from the gross weight. With a known 'bulk density of the molded materials could then - if necessary - to calculate the bulk volume, the amount of molding material required for core shooting can also be defined by weight.
Des weiteren ist es von Vorteil, wenn die Wägeeinrichtung auf das Netto-Gewicht der gesamten Fülleinrichtung eingestellt bzw. genullt wird, so daß sich mittels der Wägeeinrichtung das Ge¬ wicht des in der Fülleinrichtung befindlichen Formstoffs - di¬ rekt - ermitteln läßt. Die bezüglich der Fülleinrichtung durch¬ zuführende Nullung hätte den großen Vorteil, daß eine entspre¬ chende Anzeigeeinrichtung ausschließlich das dem eingefüllten Formstoff entsprechende Gewicht angezeigt, wobei eine direkte Korrelation zum Füllzustand - unter Zugrundelegung der Schütt¬ dichte des Formstoffs und des füllstandabhängigen Volumens - nach Aufbereitung durch einen Prozessor ebenfalls direkt zur Anzeige kommen könnte. Ein Befüllen der Fülleinrichtung ließe sich über die so gewonnenen Daten steuern, wobei auch hier die zum Füllen eines Schußkopfes erforderliche Menge an Formstoff sowie die Anzahl der mit dem Inhalt der Fülleinrichtung - mit einer Füllung - zu füllenden Schußköpfe zu berücksichtigen sind.Furthermore, it is advantageous if the weighing device is adjusted or zeroed to the net weight of the entire filling device, so that the weight of the molding material located in the filling device can be determined directly by means of the weighing device. The zeroing to be carried out with respect to the filling device would have the great advantage that a corresponding display device only shows the weight corresponding to the filled molding material, with a direct correlation to the filling condition - on the basis of the bulk density of the molding material and the volume-dependent volume - after processing could also be displayed directly by a processor. A filling of the filling device could be controlled via the data obtained in this way, the amount of molding material required for filling a shot head as well as the number of shot heads to be filled with the contents of the filling device - with one filling - also having to be taken into account here.
In konstruktiver Hinsicht könnte die Wägeeinrichtung an der Fülleinrichtung angelenkt sein und zwischen der Fülleinrichtung und dem Maschinengestell wirken. Zusätzliche Führungen bzw. weitere Anlenkungen zwischen der Fülleinrichtung und dem Ma¬ schinengestell sind aus Stabilitätsgründen von Vorteil, wobei hier lediglich sichergestellt sein muß, daß das Gewicht der Fülleinrichtung auch tatsächlich auf die Wägeeinrichtung wirkt. Ebenso könnte die Wägeeinrichtung an dem Maschinengestell ange¬ lenkt sein und ebenso zwischen dem Maschinengestell und der Fülleinrichtung wirken. Hinsichtlich der Anlenkung der Wägeein¬ richtung ist lediglich sicherzustellen, daß diese einerseits mit der Fülleinrichtung bzw. einem Halteteil der Fülleinrich¬ tung und andererseits mit dem Maschinengestell bzw. einem ent¬ sprechenden Halteteil des Maschinengestells wirkverbunden ist und dort ungehindert bzw. ohne Fremdeinflüsse die Masse der Fülleinrichtung auf die Wägeeinrichtung wirkt.In terms of design, the weighing device could be articulated on the filling device and act between the filling device and the machine frame. Additional guides or further articulations between the filling device and the machine frame are advantageous for reasons of stability, it only being necessary to ensure that the weight of the filling device actually acts on the weighing device. The weighing device could also be articulated on the machine frame and also act between the machine frame and the filling device. With regard to the articulation of the weighing device, it is only necessary to ensure that it is operatively connected on the one hand to the filling device or a holding part of the filling device and on the other hand to the machine frame or a corresponding holding part of the machine frame and there the mass of the filling device acts unhindered or without external influences on the weighing device.
Hinsichtlich einer besonders raffinierten Anordnung der Wäge¬ einrichtung ist es von Vorteil, wenn die Wägeeinrichtung einer am Maschinengestell oder an der Fülleinrichtung angelenkten und zwischen dem Maschinengestell und der Fülleinrichtung wirkenden Hubeinrichtung zugeordnet ist. Diese Hubeinrichtung bewirkt die vertikale Bewegbarkeit der Fülleinrichtung zum Eintauchen des Auslaßorgans in den Schußkopf. Im konkreten könnte die Hubein¬ richtung eine als Antrieb dienende Zylinder-Kolben-Anordnung umfassen, wobei eine als Geber der Wägeeinrichtung dienende Wä¬ gezelle wiederum integraler Bestandteil der Zylinder-Kolben-An¬ ordnung sein könnte. So könnte die Kraftaufnahme bspw. über Kraftmeßdosen erfolgen, auf die die Masse der Fülleinrichtung direkt oder indirekt, bspw. auch über ein hydraulisches Druck¬ medium, wirkt.With regard to a particularly sophisticated arrangement of the weighing device, it is advantageous if the weighing device is assigned to a lifting device which is articulated on the machine frame or on the filling device and acts between the machine frame and the filling device. This lifting device brings about the vertical mobility of the filling device for immersing the outlet member in the shooting head. In concrete terms, the lifting device could comprise a cylinder-piston arrangement serving as a drive, wherein a weighing cell serving as a transmitter of the weighing device could in turn be an integral part of the cylinder-piston arrangement. For example, the force absorption could take place via load cells, on which the mass of the filling device acts directly or indirectly, for example also via a hydraulic pressure medium.
Es gibt nun verschiedene Möglichkeiten, die Lehre der vorlie¬ genden Erfindung in vorteilhafter Weise auszugestalten und wei¬ terzubilden. Dazu ist einerseits auf die dem Patentanspruch 1 nachgeordneten Ansprüche, andererseits auf die nachfolgende Er¬ läuterung eines Ausführungsbeispiels der Erfindung anhand der Zeichnung zu verweisen. In Verbindung mit der Erläuterung des bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung werden auch im allgemeinen bevorzugte Ausgestaltungen und Weiterbildungen der Lehre erläutert. In der Zeichnung zeigt die einzige FigurThere are various possibilities for advantageously designing and developing the teaching of the present invention. For this purpose, reference should be made on the one hand to the claims subordinate to patent claim 1, and on the other hand to the following explanation of an exemplary embodiment of the invention with reference to the drawing. In connection with the explanation of the preferred exemplary embodiment of the invention with reference to the drawing, generally preferred configurations and developments of the teaching are also explained. In the drawing shows the only figure
in einer schematischen Seitenansicht eine erfindungsgemäße Vorrichtung zum Füllen von Schußköpfen mit einer Wägeein¬ richtung zur Ermittlung des Gewichts der Fülleinrichtung.In a schematic side view, an inventive device for filling shot heads with a weighing device for determining the weight of the filling device.
Die einzige Figur zeigt in schematischer Darstellung eine Vor¬ richtung zum Füllen von Schußköpfen 1 mit Formstoffen 2, mit einer einen Vorratbehälter 3 für Formstoff 2, ein Auslaßorgan 4 zum Auslassen des Formstoffs 2 in den Schußkopf 1 und eine Ver¬ schlußeinrichtung 5 zum Schließen des Auslaßorgans 4 umfassen¬ den Fülleinrichtung 6, wobei die Fülleinrichtung 6 zum Eintau¬ chen des Auslaßorgans 4 in den zu füllenden Schußkopf 1 an ei¬ nem Maschinengestell 7 vertikal bewegbar gehaltert ist.The single figure shows a schematic representation of a device for filling shot heads 1 with molding materials 2, with a storage container 3 for molding material 2, an outlet member 4 for discharging the molding material 2 into the shot head 1 and a closing device 5 for closing the outlet member 4 comprising the filling device 6, the filling device 6 for immersing the outlet member 4 in the shot head 1 to be filled on a machine frame 7 vertically is movably supported.
In erfindungsgemäßer Weise ist zwischen der Fülleinrichtung 6 und dem Maschinengestell 7 eine Wägeeinrichtung 8 zur Ermitt¬ lung des Gewichts der gesamten Fülleinrichtung 6 angeordnet. Wesentlich ist hierbei, daß die Wägeeinrichtung 8 auf das Netto-Gewicht der Fülleinrichtung 6 eingestellt bzw. genullt ist, so daß sich mittels der hier lediglich schematisch darge¬ stellten Wägeeinrichtung 8 das Gewicht des in der Fülleinrich¬ tung 6 befindlichen Formstoffs 2 ermitteln läßt.In a manner according to the invention, a weighing device 8 for determining the weight of the entire filling device 6 is arranged between the filling device 6 and the machine frame 7. It is important here that the weighing device 8 is set or zeroed to the net weight of the filling device 6, so that the weight of the molding material 2 located in the filling device 6 can be determined by means of the weighing device 8, which is only shown schematically here.
Die einzige Figur zeigt des weiteren, daß die Wägeeinrichtung 8 einerseits an der Fülleinrichtung 6 bzw. an einem dort vorgese¬ henen Halter 9 und andererseits an einer zwischen dem Maschi¬ nengestell 7 und der Fülleinrichtung 6 wirkenden Hubeinrichtung 10 angelenkt ist und somit zwischen der Fülleinrichtung 6 und dem Maschinengestell 7 wirkt. Ebenso ist es jedoch möglich, die Wägeeinrichtung 8 in die Hubeinrichtung 10 zu integrieren, wo¬ bei die Gewichtsermittlung anhand eines sich in einer Zylinder- Kolben-Anordnung - aufgrund der Masse der Fülleinrichtung 6 - erhöht einstellendes Druckes ermittelt werden kann.The single figure further shows that the weighing device 8 is articulated on the one hand on the filling device 6 or on a holder 9 provided there and on the other hand on a lifting device 10 acting between the machine frame 7 and the filling device 6 and thus between the filling device 6 and the machine frame 7 acts. However, it is also possible to integrate the weighing device 8 into the lifting device 10, whereby the weight can be determined with the aid of a pressure which is increased in a cylinder-piston arrangement due to the mass of the filling device 6.
Abschließend sei ganz besonders darauf hingewiesen, daß sich die hier beanspruchte Lehre grundsätzlich auf die Ermittlung des Füllzustandes einer Vorrichtung zum Füllen von Schußköpfen bezieht, nämlich unter Zugrundelegung einer Gewichtsermittlung der Fülleinrichtung. Jedwede sonstige Ausgestaltungen der Lehre sind denkbar, ohne eine Einschränkung auf das voranstehend le¬ diglich beispielhaft genannte Ausführungsbeispiel vorzunehmen. Finally, it should be particularly pointed out that the teaching claimed here relates in principle to the determination of the filling state of a device for filling shot heads, namely on the basis of a weight determination of the filling device. Any other refinements of the teaching are conceivable without being restricted to the exemplary embodiment mentioned above merely by way of example.

Claims

Patentansprüche claims
1. Vorrichtung zum Füllen von Schußköpfen (1) mit Formstoffen (2), mit einer einen Vorratbehälter (3) für Formstoff (2), ein Auslaßorgan (4) zum Auslassen des Formstoffs (2) in den Schu߬ kopf (1) und eine Verschlußeinrichtung (5) zum Schließen des Auslaßorgans (4) umfassenden Fülleinrichtung (6), wobei die Fülleinrichtung (6) zum Eintauchen des Auslaßorgans (4) in den zu füllenden Schußkopf (1) an einem Maschinengestell (7) verti¬ kal bewegbar gehaltert ist, d a d u r c h g e k e n n z e i c h n e t , daß zwischen der Fülleinrichtung (6) und dem Maschinengestell (7) eine Wägeein¬ richtung (8) zur Ermittlung des Gewichts der Fülleinrichtung (6) angeordnet ist.1. Device for filling shot heads (1) with molding materials (2), with a storage container (3) for molding material (2), an outlet member (4) for discharging the molding material (2) into the shot head (1) and a closure device (5) for closing the outlet device (4) comprising filling device (6), the filling device (6) for immersing the outlet member (4) in the shooting head (1) to be filled being held vertically movable on a machine frame (7) is characterized in that a weighing device (8) for determining the weight of the filling device (6) is arranged between the filling device (6) and the machine frame (7).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Wägeeinrichtung (8) auf das Nettogewicht der Fülleinrich¬ tung (6) eingestellt bzw. genullt ist, so daß sich mittels der Wägeeinrichtung (8) das Gewicht des in der Fülleinrichtung (6) befindlichen Formstoffs (2) ermitteln läßt.2. Device according to claim 1, characterized in that the weighing device (8) to the net weight of the Fülleinrich¬ device (6) is set or zeroed, so that the weight of the in the filling device (6) by means of the weighing device (8) located molding material (2) can be determined.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die Wägeeinrichtung (8) an der Fülleinrichtung (6) an¬ gelenkt ist und zwischen der Fülleinrichtung (6) und dem Ma¬ schinengestell (7) wirkt.3. Apparatus according to claim 1 or 2, characterized gekennzeich¬ net that the weighing device (8) on the filling device (6) is articulated an¬ and acts between the filling device (6) and the machine frame (7).
4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die Wägeeinrichtung (8) an dem Maschinengestell (7) angelenkt ist und zwischen dem Maschinengestell (7) und der Fülleinrichtung (6) wirkt.4. Apparatus according to claim 1 or 2, characterized gekennzeich¬ net that the weighing device (8) on the machine frame (7) is articulated and acts between the machine frame (7) and the filling device (6).
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch ge¬ kennzeichnet, daß die Wägeeinrichtung (8) einer am Maschinenge¬ stell (7) oder an der Fülleinrichtung (6) angelenkten und zwi- sehen dem Maschinengestell (7) und der Fülleinrichtung (6) wir¬ kenden Hubeinrichtung (10) zugeordnet ist.5. Device according to one of claims 1 to 4, characterized ge indicates that the weighing device (8) on the machine frame (7) or on the filling device (6) articulated and between see the machine frame (7) and the filling device (6) effecting lifting device (10) is assigned.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Hubeinrichtung (10) eine als Antrieb dienende Zylinder-Kol¬ ben-Anordnung umfaßt und daß eine als Geber der Wägeeinrichtung (8) dienende Wägezelle integraler Bestandteil der Zylinder-Kol¬ ben-Anordnung ist. 6. The device according to claim 5, characterized in that the lifting device (10) comprises a cylinder serving as a drive-Kol¬ ben arrangement and that serving as a transmitter of the weighing device (8) serving load cell integral part of the cylinder-Kol¬ ben arrangement is.
EP94928751A 1993-10-07 1994-10-06 Shooting head filling device Expired - Lifetime EP0722373B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4334118A DE4334118C2 (en) 1993-10-07 1993-10-07 Device for filling shot heads
DE4334118 1993-10-07
PCT/DE1994/001169 WO1995010375A2 (en) 1993-10-07 1994-10-06 Shooting head filling device

Publications (2)

Publication Number Publication Date
EP0722373A1 true EP0722373A1 (en) 1996-07-24
EP0722373B1 EP0722373B1 (en) 1997-06-11

Family

ID=6499567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94928751A Expired - Lifetime EP0722373B1 (en) 1993-10-07 1994-10-06 Shooting head filling device

Country Status (7)

Country Link
US (1) US5671798A (en)
EP (1) EP0722373B1 (en)
JP (1) JP2977093B2 (en)
CA (1) CA2173491A1 (en)
DE (2) DE4334118C2 (en)
ES (1) ES2104422T3 (en)
WO (1) WO1995010375A2 (en)

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CN101352752B (en) * 2008-09-11 2010-06-02 冯新林 Cold-box core blower
CN101362191B (en) * 2008-09-11 2010-06-09 冯新林 Multifunctional pushing bag of core shooter

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DE2304564A1 (en) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Automatic cold-box mould making machine - includes weighing machine and mould assembly devices
JPS55126344A (en) * 1979-03-19 1980-09-30 Sintokogio Ltd Mold molding apparatus
SU1507509A1 (en) * 1985-08-15 1989-09-15 Всесоюзный научно-исследовательский институт литейного машиностроения, литейной технологии и автоматизации литейного производства Method of determining parameters of waste moulding sand
CH671895A5 (en) * 1986-12-22 1989-10-13 Foundry Design Corp Europ
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Also Published As

Publication number Publication date
DE4334118C2 (en) 1997-01-30
WO1995010375A2 (en) 1995-04-20
DE59403134D1 (en) 1997-07-17
CA2173491A1 (en) 1995-04-20
DE4334118A1 (en) 1995-04-13
US5671798A (en) 1997-09-30
ES2104422T3 (en) 1997-10-01
WO1995010375A3 (en) 1995-08-03
EP0722373B1 (en) 1997-06-11
JP2977093B2 (en) 1999-11-10
JPH08510964A (en) 1996-11-19

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