EP0014226A1 - Device for filling moulding and core boxes - Google Patents

Device for filling moulding and core boxes Download PDF

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Publication number
EP0014226A1
EP0014226A1 EP79103314A EP79103314A EP0014226A1 EP 0014226 A1 EP0014226 A1 EP 0014226A1 EP 79103314 A EP79103314 A EP 79103314A EP 79103314 A EP79103314 A EP 79103314A EP 0014226 A1 EP0014226 A1 EP 0014226A1
Authority
EP
European Patent Office
Prior art keywords
container
moulding
boxes
interior
filling
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
EP79103314A
Other languages
German (de)
French (fr)
Other versions
EP0014226B1 (en
Inventor
Hideto Ing. Terada
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.)
Wagner-Sinto Giessereimaschinen GmbH
Original Assignee
Wagner-Sinto Giessereimaschinen 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 Wagner-Sinto Giessereimaschinen GmbH filed Critical Wagner-Sinto Giessereimaschinen GmbH
Priority to AT79103314T priority Critical patent/ATE318T1/en
Publication of EP0014226A1 publication Critical patent/EP0014226A1/en
Application granted granted Critical
Publication of EP0014226B1 publication Critical patent/EP0014226B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/12—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose for filling flasks

Definitions

  • the invention relates to a device for filling mold and core boxes with granular and predominantly binder-free foundry molding materials, namely for dust-free filling of such boxes.
  • a filling device is designed for the purpose mentioned so that the device consisting of a container for holding the molding materials has a lower edge adapted to the upper edge of the molded boxes to be filled and placed on the molded boxes and a perforated hole Has bottom plate with closable openings, a part of which communicates with the interior of the container and a part with ventilation ducts.
  • the bottom of the container consists of three uniformly perforated and stacked sheets, the middle of which is displaceable, some of the openings of the sheet lying at the top in the filling direction being connected to the inside of the container and another part being connected to air channels.
  • a frame formed from hollow profiles is connected to the upper and to the lower edge of the container, and air ducts are connected to the inside of the lower frame and holes are made in the inner wall of the upper frame and into the interior of the container .
  • 1 denotes a table
  • 2 a model plate
  • 3 a model
  • 4 a mold box to be filled.
  • a sealing ring 5 lies on the upper edge of the box 4.
  • the filling device itself consists of a rectangular container 15. The lower edge of its container walls is connected to a hollow profile frame 8.
  • the sheet (7) can take two layers, in one of which its holes coincide with those of sheets 21 and 22, in the other the sheet closes the holes.
  • the upper edge of the side walls is surrounded by a second hollow frame 14, which is connected by a pipe 12 to a blower 13 and to the lower frame 8 and has on the inside air outlet holes 25 which open into the interior 16 of the container 15.
  • baffle strips 26 are attached, which deflect the air flows entering the interior 16 downward.
  • a frame composed of profiled iron sits on the frame 14 and serves as a support for a cover 17 which carries a filler neck 18.
  • Flat bars 27 attached to frame 13 are used to transport the container with a crane.
  • the container 15 is filled with mold sand when the openings 10 and 11 are closed and then placed on the upper edge of the mold box 4 with a crane.
  • the Dimensions of the container 15 are determined so that they correspond to those of the molding box 4.
  • the ring 5 forms a seal that closes the inner edge of the molding box.
  • the sheet 7 is moved so that the openings 10 and 11 are exposed.
  • the fan 13 is switched on. This sucks the air in the molding box together with the dust that is produced and conveys it back through the holes 25 into the container. It is achieved in this way that the molding box can be filled dust-free, the air to be removed from the molding box also serving as a means of transport for the dust generated in the box.
  • the openings 10 and 11 are closed again and the container 15 is removed from the molding box.

Abstract

1. Apparatus for the filling of moulding boxes or core boxes with granular foundry moulding materials, having a container for accomodating the moulding material, which container has a lower rim adapted to the upper rim of the moulding box being filled and adapted to be placed on said upper rim and is capable of being closed by a bottom plate constructed as a slide element, characterized in that apertures (10, 11) which can be closed are provided in the bottom plate, that some apertures (10) serve for introducing the moulding material from the container into the moulding box and that the other apertures (11) are connected to aire extraction ducts (9) which shield these apertures (11) relatively to the interior (16) of the container (15) and thus relatively to the moulding material (19).

Description

Die Erfindung betrifft eine Vorrichtung zum Füllen von Form- und Kernkästen mit körnigen und vorwiegend binderfreien Gießerei-Formstoffen, und zwar zum staubfreien Füllen solcher Kästen.The invention relates to a device for filling mold and core boxes with granular and predominantly binder-free foundry molding materials, namely for dust-free filling of such boxes.

Beim Füllen der genannten Kästen mit trockenen und feinkörnigen Formstoffen wie z. B. Quarzsand läßt sich eine Staubbildung nicht vermeiden. Dieser Staub verschmutzt nicht nur Gießereihallen und Umwelt, er ist auch gefundheitsschädlich. Es hat daher nicht an Vorschlägen gefehlt, die Entwicklung von Staub beim Füllen der Kästen zu vermeiden. Die bisher bekannten Lösungen arbeiten aber teils unbefriedigend, teils zu unwirtschaftlich. Der Erfindung liegt daher die Aufgabe zugrunde, eine wirtschaftlich tragbare Vorrichtung zu entwickeln, die ein Füllen der Kästen ohne Staubentwicklung zuläßt.When filling the boxes mentioned with dry and fine-grained molding materials such. B. Quartz sand can not avoid dust formation. This dust not only pollutes foundry halls and the environment, it is also harmful to health. There has been no shortage of suggestions to avoid the development of dust when filling the boxes. However, the previously known solutions work partly unsatisfactorily, partly too economically. The invention is therefore based on the object of developing an economically portable device which allows the boxes to be filled without generating dust.

Erfindungsgemäß ist eine Füllvorrichtung für den genannten Zweck so ausgebildet, daß die aus einem Behälter zur Aufnahme der Formstoffe bestehende Vorrichtung einen dem oberen Rand der zu füllenden Formkästen angepaßten, auf -den Formkästen aufsetzbaren unteren Rand und eine gelochte Bodenplatte mit verschließbaren Öffnungen hat, von cenen ein Teil mit dem Inneren des Behälters und ein Teil mit Luftabzugkenälen in Verbindung steht. Vorzugsweise besteht der Boden des Behälters aus drei gleichmäßig gelochten und übereinander angeordneten Blechen, von denen das mittlere verschiebbar ist, wobei ein Teil der Öffnungen des in der Füllrichtung oben liegenden Bleches mit dem Behälterinneren und ein anderer Teil mit Luftkanälen in Verbindung steht. Nach einem weiteren Vorschlag der Erfindung ist mit dem oberen und mit dem unteren Rand des Behälters je ein aus Hohlprofilen gebildeter Rahmen verbunden und an der Innenseite-des unteren Rahmens sind Luftkanäle angeschlossen und in der Innenwand des oberen Rahmens in den Innenraum des Behälters mündende Löcher angebracht.According to the invention, a filling device is designed for the purpose mentioned so that the device consisting of a container for holding the molding materials has a lower edge adapted to the upper edge of the molded boxes to be filled and placed on the molded boxes and a perforated hole Has bottom plate with closable openings, a part of which communicates with the interior of the container and a part with ventilation ducts. Preferably, the bottom of the container consists of three uniformly perforated and stacked sheets, the middle of which is displaceable, some of the openings of the sheet lying at the top in the filling direction being connected to the inside of the container and another part being connected to air channels. According to a further proposal of the invention, a frame formed from hollow profiles is connected to the upper and to the lower edge of the container, and air ducts are connected to the inside of the lower frame and holes are made in the inner wall of the upper frame and into the interior of the container .

Die Erfindung und weitere Gegenstände der Unteransprüche bildende Merkmale der Erfindung sind im folgenden anhand der Zeichnung beschrieben, in dieser zeigen:

  • Fig. 1 einen Längsschnitt und
  • Fig. 2 einen Querschnitt durch eine Vorrichtung gemäß der Erfindung.
The invention and further features of the invention forming the subclaims are described below with reference to the drawing, in which:
  • Fig. 1 shows a longitudinal section and
  • Fig. 2 shows a cross section through a device according to the invention.

In der Zeichnung bezeichnet 1 einen Tisch, 2 eine Modellplatte, 3 ein Modell und 4 einen zu füllenden Formkasten. Auf dem oberen Rand des Kastens 4 liegt ein Dichtungsring 5.In the drawing, 1 denotes a table, 2 a model plate, 3 a model and 4 a mold box to be filled. A sealing ring 5 lies on the upper edge of the box 4.

Die Füllvorrichtung selbst besteht aus einem rechteckigen Behälter 15. Der untere Rand seiner Behälterwände ist mit einem Hohlprofilrahmen 8 verbunden.The filling device itself consists of a rectangular container 15. The lower edge of its container walls is connected to a hollow profile frame 8.

An seinem unteren Rand sind mit Abstand voneinander zwei gelochte Bleche 21 und 22 befestigt. Diese Bleche sind reihenweise so gelocht, daß auf eine Reihe von Füllöffnungen 10 eine Reihe von Absaugöffnungen 11 für Staub und Luft folgt. Die Öffnungen 11 sind von dreieckigen Profilstangen 9 abgedeckt. Diese bilden Luftkanäle, die am Rahmen 8 befestigt und mit diesem durch Löcher 23 verbunden sind.At its lower edge, two perforated sheets 21 and 22 are attached at a distance from each other. These sheets are perforated in rows so that a row of suction openings 11 for dust and air follows a row of filling openings 10. The openings 11 are covered by triangular profile bars 9. These form air channels which are attached to the frame 8 and connected to it by holes 23.

Zwischen den Blechen 21 und 22 sitzt verschiebbar ein Blech 7, das in der gleichen Weise gelocht ist wie die Bleche 21 und 22. Zur Verschiebung des Bleches 7 dient ein am Rahmen 8 befestigter Zylinder 24, mit dessen Kolbenstange das Blech 7 verbunden ist (Fig. 2). Das Blech (7) kann zwei Lagen einnehmen, in der einen decken sich seine Löcher mit denen der Bleche 21 und 22, in der anderen verschließt das Blech die Löcher.A plate 7, which is perforated in the same way as the plates 21 and 22, is slidably seated between the plates 21 and 22. A cylinder 24 fastened to the frame 8, with the piston rod of which the plate 7 is connected (FIG . 2). The sheet (7) can take two layers, in one of which its holes coincide with those of sheets 21 and 22, in the other the sheet closes the holes.

Den oberen Rand der Seitenwände umgibt ein zweiter Hohlrahmen 14, der durch eine Rohrleitung 12 mit einem Gebläse 13 und mit dem unteren Rahmen 8 verbunden ist und an seiner Innenseite Luftaustrittslöcher 25 hat, die in den Innenraum 16 des Behälters 15 münden. Vor den Öffnungen 25 sind Pralleisten 26 angebracht, die die in den Innenraum 16 eintretenden Luftströme nach unten ablenken. Auf dem Rahmen 14 sitzt ein aus Profileisen zusammengesetzter Rahmen, der als Auflager für einen Dekkel 17, der einen Füllstutzen 18 trägt, dient. Am Rahmen 13 befestigte Flacheisen 27 dienen zum Transport des Behälters mit einem Kran.The upper edge of the side walls is surrounded by a second hollow frame 14, which is connected by a pipe 12 to a blower 13 and to the lower frame 8 and has on the inside air outlet holes 25 which open into the interior 16 of the container 15. In front of the openings 25, baffle strips 26 are attached, which deflect the air flows entering the interior 16 downward. A frame composed of profiled iron sits on the frame 14 and serves as a support for a cover 17 which carries a filler neck 18. Flat bars 27 attached to frame 13 are used to transport the container with a crane.

Der Behälter 15 wird bei verschlossenen Öffnungen 10 und 11 mit Formsand gefüllt und dann mit einem Kran auf dem oberen Rand des Formkastens 4 abgestellt. Die Abmessungen des Behälters 15 sind so bestimmt, daß sie denen des Formkastens 4 entsprechen. Der Ring 5 bildet dabei eine den Innenrand des Formkastens abschließende Dichtung. Nunmehr wird mit Hilfe des Zylinders 24 das Blech 7 so verschoben, daß die Öffnungen 10 und 11 freigelegt werden. Gleichzeitig wird das Gebläse 13 eingeschaltet. Dieses saugt die im Formkasten befindliche Luft zusammen mit dem anfallenden Staub ab und fördert ihn durch die Löcher 25 wieder in den Behälter. Man erreicht so, daß der Formkasten staubfrei gefüllt werden kann, wobei die aus dem Formkasten abzuführende Luft zugleich als Transportmittel für den im Kasten entstandenen Staub dient. Nach dem Füllen werden die Öffnungen 10 und 11 wieder verschlossen und der Behälter 15 vom Formkasten abgenommen.The container 15 is filled with mold sand when the openings 10 and 11 are closed and then placed on the upper edge of the mold box 4 with a crane. The Dimensions of the container 15 are determined so that they correspond to those of the molding box 4. The ring 5 forms a seal that closes the inner edge of the molding box. Now, with the help of the cylinder 24, the sheet 7 is moved so that the openings 10 and 11 are exposed. At the same time, the fan 13 is switched on. This sucks the air in the molding box together with the dust that is produced and conveys it back through the holes 25 into the container. It is achieved in this way that the molding box can be filled dust-free, the air to be removed from the molding box also serving as a means of transport for the dust generated in the box. After filling, the openings 10 and 11 are closed again and the container 15 is removed from the molding box.

Claims (4)

1. Vorrichtung zum Füllen von Form- oder Kernkästen mit körnigen Gießerei-Formstoffen, dadurch gekennzeichnet, daß die aus einem Behälter (15) zur Aufnahme der Formstoffe bestehende Vorrichtung einen dem oberen Rand der zu füllenden Formkasten (4) angepaßten, auf den Formkästen aufsetzbaren unteren Rand und eine gelochte Bodenplatte (21, 22) mit verschließbaren Öffnungen (10,11) hat, von denen ein Teil (10) mit dem Inneren des Behälters (15) und ein Teil (11) mit Luftabzugkanälen (9) in Verbindung steht.1. Device for filling mold or core boxes with granular foundry molding materials, characterized in that the existing device from a container (15) for receiving the molding materials one of the upper edge of the molding box to be filled (4) adapted to be placed on the molding boxes has the lower edge and a perforated base plate (21, 22) with closable openings (10, 11), of which a part (10) communicates with the interior of the container (15) and a part (11) with air extraction channels (9) . 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Boden des Behälters (15) aus drei gleichmäßig gelochten und übereinander angeordneten Blechen (21, 7, 22) besteht, von denen das mittlere (7) verschiebbar ist, und daß ein Teil der Öffnungen des in der Füllrichtung oben liegenden Bleches mit dem Behälterinneren (16) und ein anderer Teil mit Luftkanälen (9) in Verbindung steht.2. Device according to claim 1, characterized in that the bottom of the container (15) consists of three uniformly perforated and one above the other sheets (21, 7, 22), of which the middle (7) is displaceable, and that part of Openings of the sheet lying at the top in the filling direction are connected to the interior of the container (16) and another part is connected to air channels (9). 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mit dem oberen und mit dem unteren Rand des Behälters (15) je ein aus Hohlprofilen gebildeter Rahmen (8, 14) verbunden ist, daß an der Innenseite des unteren Rahmens (8) Luftkanäle (9) angeschlossen sind und in der Innenwand des oberen Rahmens (14) in den Innenraum (16) mündende Löcher (25) angebracht sind.3. Apparatus according to claim 1, characterized in that with the upper and with the lower edge of the container (15) each have a frame formed from hollow profiles (8, 14) is connected that on the inside of the lower frame (8) air channels ( 9) are connected and in the inner wall of the upper frame (14) into the interior (16) opening holes (25) are made. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß beide Hohlprofilrahmen (8, 14) durch eine ein Gebläse (13) enthaltende Rohrleitung (12) verbunden sind.4. The device according to claim 3, characterized in that both hollow profile frames (8, 14) are connected by a pipe (12) containing a blower (13).
EP79103314A 1979-02-02 1979-09-06 Device for filling moulding and core boxes Expired EP0014226B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103314T ATE318T1 (en) 1979-02-02 1979-09-06 DEVICE FOR FILLING MOLD AND CORE BOXES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2903948A DE2903948C2 (en) 1979-02-02 1979-02-02 Device for filling molding and core boxes
DE2903948 1979-02-02

Publications (2)

Publication Number Publication Date
EP0014226A1 true EP0014226A1 (en) 1980-08-20
EP0014226B1 EP0014226B1 (en) 1981-10-21

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ID=6061990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103314A Expired EP0014226B1 (en) 1979-02-02 1979-09-06 Device for filling moulding and core boxes

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EP (1) EP0014226B1 (en)
AT (1) ATE318T1 (en)
DE (1) DE2903948C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109081146A (en) * 2018-09-05 2018-12-25 宿松县东全米业有限公司 A kind of corn feeding dust-extraction unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH654229A5 (en) * 1981-07-20 1986-02-14 Fischer Ag Georg DEVICE FOR FILLING A CONTAINER WITH A GRAINY SUBSTANCE.
US4971135A (en) * 1989-02-23 1990-11-20 Outboard Marine Corporation Lost foam casting apparatus
CN112222354B (en) * 2020-10-08 2022-05-03 临澧县来顺铸造有限责任公司 Sand device under automation of swage sand-lined

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7247489U (en) * Schenck C Maschinenfabrik Gmbh
DE806274C (en) * 1949-05-29 1951-06-14 Johannes Wisser Press molding machine
GB967096A (en) * 1962-05-17 1964-08-19 Fordath Engineering Company Lt Improvements in or relating to a method and apparatus for the preparation of sand for moulds, cores and the like
DE2352396A1 (en) * 1972-10-19 1974-05-16 Ici Ltd DEVICE FOR MONITORING DUST FORMATION IN FILLING FUNNELS
FR2212281A1 (en) * 1972-12-28 1974-07-26 Schenck Gmbh Carl
DE2603602A1 (en) * 1975-01-31 1976-08-05 John Workman METHOD AND DEVICE FOR MANUFACTURING SAND MOLDS FOR CASTING TECHNOLOGY

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097621B (en) * 1956-03-23 1961-01-19 Fritz Hansberg Process and molding machine for the pneumatic production of foundry cores and foundry molds as well as boxes for this

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7247489U (en) * Schenck C Maschinenfabrik Gmbh
DE806274C (en) * 1949-05-29 1951-06-14 Johannes Wisser Press molding machine
GB967096A (en) * 1962-05-17 1964-08-19 Fordath Engineering Company Lt Improvements in or relating to a method and apparatus for the preparation of sand for moulds, cores and the like
DE2352396A1 (en) * 1972-10-19 1974-05-16 Ici Ltd DEVICE FOR MONITORING DUST FORMATION IN FILLING FUNNELS
FR2212281A1 (en) * 1972-12-28 1974-07-26 Schenck Gmbh Carl
DE2603602A1 (en) * 1975-01-31 1976-08-05 John Workman METHOD AND DEVICE FOR MANUFACTURING SAND MOLDS FOR CASTING TECHNOLOGY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109081146A (en) * 2018-09-05 2018-12-25 宿松县东全米业有限公司 A kind of corn feeding dust-extraction unit

Also Published As

Publication number Publication date
DE2903948C2 (en) 1985-08-01
EP0014226B1 (en) 1981-10-21
ATE318T1 (en) 1981-11-15
DE2903948A1 (en) 1980-08-07

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