EP0611617B1 - Formmaschine - Google Patents
Formmaschine Download PDFInfo
- Publication number
- EP0611617B1 EP0611617B1 EP93119833A EP93119833A EP0611617B1 EP 0611617 B1 EP0611617 B1 EP 0611617B1 EP 93119833 A EP93119833 A EP 93119833A EP 93119833 A EP93119833 A EP 93119833A EP 0611617 B1 EP0611617 B1 EP 0611617B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- moulding
- station
- machine according
- box
- pattern
- 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
- B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
- B22C11/02—Machines in which the moulds are moved during a cycle of successive operations
- B22C11/04—Machines in which the moulds are moved during a cycle of successive operations by a horizontal rotary table or carrier
Definitions
- the invention relates to a molding machine a transport device for feeding an empty one Shaped box and for the removal of a finished shaped box with a turntable rotatable around a central column for the cyclical transport of model plates and Molding boxes, with the turntable provided with four stations is on which a model plate is arranged on which a molding box can be placed and each station by rotating 90 ° in cycles one after the other into a sand filling station, into a pre-compression station, in a compression station and in a model change station can be transferred.
- Such Device is known from DE-C-1058 701.
- a disadvantage of this known device is in that considerable effort is required to to pass the molding boxes through the molding machine. So it is necessary to own drives for the introduction of a Molding box and for pulling off a molding box to use from the molding machine.
- the invention has for its object a molding machine of the type mentioned at the beginning, which with simple construction and simple, more reliable Applicability integrated in a straight line can be and in which both the feed an empty molding box as well as the removal a finished molding box with little technical equipment Effort.
- the molding machine according to the invention is characterized by a number of significant benefits. Because the turntable is provided with four processing stations four different work steps at the same time be performed, which significantly increases the cycle time can be reduced. Using the four-station turntable can thus two pairs of model plates, d. H. two models for top boxes and two models for bottom boxes processed in sync with each other and simultaneously that the finished mold boxes alternate form an upper box or a lower box.
- a horizontally reversing spacer is arranged, which is in a space between an empty molding box and the one in the compression station existing molding box can be introduced and is movable with the mold boxes. In this way it is possible to insert a empty mold box also the finished mold box to slide out of the machine. Additional Driving means in the area of the molding machine are thus not mandatory.
- the sand filling station is preferably with feed means for feeding a molding box onto a model plate, with means for placing a filling frame on the molding box and with means for lifting the model plate, of the molding box and the filling frame under provide a sand dosing device. In this way assembling the model plate, the mold frame and the filling frame as well as the subsequent filling automate the sand.
- the ventilation hood is preferably designed so that a gas pressure surge for Pre-compaction of the sand passed onto the molding box becomes.
- Compressed air for example, can be used as the gas , but it is also possible to use any other To use gas compositions.
- the compression station is according to the invention by means for lifting the model plate, the molding box and the Filling frame in a compression unit and with means provided for lifting the filling frame.
- the means to Putting on and lifting off the filling frame are preferred in the form of a 180 ° around the center column rotatable swivel frame.
- the swing frame is used after passing through the compression station remove the filling frame and this directly the To feed sand filling station.
- Means according to the invention are in the model change station arranged to remove a model plate from the turntable, so that with the help of the model change station taking one without interrupting the work cycle Model plate, or the insertion of another model plate is made possible.
- roller conveyor elements are arranged, which optionally in Can be brought into engagement with the molded boxes.
- the spacer element is a Length of two molded boxes, because then the pitch of the individual mold boxes not through the molding machine is changed.
- the spacer is preferably in a central, bearing element arranged in the area of the center column stored, the spacer and / or its Bearing element optionally in the transport path of the molding boxes can be introduced or moved out of this. This prevents the spacer the movement of the mold boxes, especially when Raising or lowering in the compression unit or disturb the sand dosing device.
- the molding machine shown comprises a frame 18, which four vertical columns as well as upper and lower cross members has, so that there is a rigid, self-contained Frame results.
- a vertical one Center column 2 arranged around which in the lower area by means of a drive 4, a turntable 3 and in the upper area a swivel frame 6 can be rotated by means of a drive 7 are.
- the turntable 3 can be swiveled by 90 ° in cycles, while the swivel frame 6 cyclically by 180 ° is pivoted.
- the invention includes A sand filling station A, a pre-compression station B, a compression station C and a model change station D.
- the top view of Fig. I further shows that the molding machine is integrated in a linear transport path 23, with the help of which empty mold boxes 10 are supplied and finished Mold boxes 10c are discharged.
- the arrow indicates the direction of flow through the molding machine again.
- the transport track 23 is designed, for example, in the form of a roller conveyor.
- roller conveyor elements 11 provided, which laterally by means of Hydraulic cylinders 12 are slidable and in engagement with can be brought to the mold boxes. In the same way the roller conveyor elements 11 can be withdrawn by to enable the mold boxes to be raised or lowered.
- the sand filling station A which after an inlet of an empty one Molding box 10 represents the first processing station, is structured as follows: In the lower area of the sand filling station 10a, a lifting table 1a is arranged, by means of which a model plate 5a raised from the turntable 3 and be created from the bottom against the molding box 10 can. By further lifting the lifting table 1 a Molding box 10 against the bottom of a filling frame 8 in Bring plant, which is mounted on the swivel frame 6 is.
- the swivel frame 6 is with laterally movable support cams 9 provided, which can be withdrawn, to release the fill frame 8.
- the pre-compression station B includes an overhead ventilation hood 19, which by lifting a lifting table 22nd (see Fig. III) can be placed on the filling frame 8. By Opening the valve 20, which is the connection between the Pressure accumulator 24 and the ventilation hood 19 can now a gas pressure surge can be applied to the molding sand. After the lifting table 22 has been lowered, the model plate rests 5b in turn on the turntable 3 so that it continues to cycle can be.
- the compression station C is with an overhead compression unit 17 equipped, which can be operated hydraulically is and corresponds in its structure to the state of the art.
- By lifting the lifting table 1b (see Fig. II) it is possible to get the unit from the model plate 5c, the molding box 10c and the filling frame 8b to the extent that these are applied against the compression unit 17.
- the support cams 9 from the Swing frame 6 extended to hold the filling frame 8b.
- the roller conveyor elements 11 extend, see above that supported with a further lowering of the molding box 10b becomes.
- the lifting table 1b can be in its lowest End position to be moved to the model plate 5c Turntable 3 to lay. This is now for another one Clocking process free.
- the model change station D also includes a lifting table 21, with the help of which a model plate 5d from the turntable 3 excavated, or another model plate can be used can.
- a lifting table 21 with the help of which a model plate 5d from the turntable 3 excavated, or another model plate can be used can.
- means of transport and handling provided, which are not shown in the figures to remove the model plate or to another model plate to forward.
- a bearing element 14 is arranged, which is reversible and horizontally displaceable a rod-shaped spacer 13 stores.
- a drive 25 is provided to the spacer 13 to push back into its starting position.
- the bearing element 14 is attached to a pivot lever 26, which about an axis 27 by means of a hydraulic cylinder 15 is pivotable (see Fig. III). So it is possible that To pivot in the spacer element between two adjacent molded boxes 10, or to remove from the path of the mold boxes 10.
- a molding box 10a and a filling frame 8a which lie on the model plate 5a.
- a fully compressed mold in a molding box 10c which is supported on the roller conveyor elements 11b.
- the model plate 5c has already been placed on the turntable 3, the lifting table 1b is located, as is the lifting table 1a in the sand filling station A in its lowest position.
- the spacer elements 13 are pivoted in and are located between the mold boxes 10 and 10b.
- the lifting table 22 is already lowered, so that the entire arrangement on the turntable 3 lies.
- a model 5d is located in the model change station D, that rolled out after the lifting of the lifting table 21 could be. In the arrangement shown is the lifting table 21 but also lowered to its lowest position.
- the Molding box 10 is on the transport path 23 in the sand filling station A inserted, this is done by the spacer 13 pushing out the finished molding box 10b.
- the turntable 3 is pivoted through 90 °, hereby the model plate 5a with the molding box 10a and transferred the filling frame 8a to the pre-compression station B, while the model plate 5b with the molding box 10d and the filling frame 8c in the compression station C and the Model plate 5c in the model change station D and the model 5d be transferred to the sand filling station A.
- the swivel frame 6 is rotated by 180 °, so that the filling frame 8b is brought into the sand filling station A.
- the lifting table 1a moves up, takes over the model plate 5d, the molding box 10 and the filling frame 8b, lifts this under the sand dosing device 16, through which the required amount of sand is filled. Meanwhile drive the roller conveyor slats 11a and the support cams 9b back so that the lifting table 1a the model plate 5d with the Lower the molding box 10 and the filling frame 8b into the turntable 3 can. As soon as the lifting table 1a reaches its lower end position has reached, the spacer elements 13 move into their starting position back.
- the lifting table 1b moves up, lifts the model plate 5b together with the molding box 10d and the filling frame 8c under the compression unit 17, which compresses the molding sand.
- the support cams 9a and the roller conveyor elements 11b drive the support cams 9a and the roller conveyor elements 11b before, so that when lowering the lifting table 1b the filling frame 8c on the cam elements 9a and the molding box 10d the roller conveyor elements 11b are stored.
- the model plate 5b is lowered into the turntable 3.
- the lifting table 22 lifts the model plate 5a with the molding box 10a and the filling frame 8a and the ventilation hood 19, whereby the molding sand is pre-compressed by an air stream becomes. Now the lifting table 22 sets the model 5a with the Molding box 10a and the filling frame 8a back in the turntable 3 from.
- the lifting table 21 of the model change station D only moves up, if a model is to be removed from the turntable 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Description
- Fig. I
- eine Draufsicht auf ein Ausführungsbeispiel einer erfindungsgemäßen Formmaschine,
- Fig. II
- eine Seitenansicht der in Fig. I gezeigten Formmaschine, und
- Fig. III
- eine stirnseitige Ansicht auf die in Fig. II rechte Seite der Formmaschine mit Blickrichtung von links.
Claims (12)
- Formmaschine mit einer Transporteinrichtung zur Zuführung eines leeren Formkastens (10) und zur Abführung eines fertigen Formkastens (10c) mit einem um eine Mittelsäule (2) drehbaren Drehtisch (3) zum taktweisen Transport von Modellplatten (5a) und Formkästen (10), wobei der Drehtisch (3) mit vier Stationen versehen ist, auf welchen jeweils eine Modellplatte (5) angeordnet ist, auf welcher ein Formkasten (10) aufsetzbar ist, und jede Station durch taktweise Drehung um 90° nacheinander in eine Sandfüllstation (A), in eine Vorverdichtungsstation (B), in eine Verdichtungsstation (C) und in eine Modellwechselstation (D) überführbar ist, dadurch gekennzeichnet, daß der leere Formkasten (10) von einer Seite zugeführt und der fertige Formkasten (10c) an einer gegenüberliegenden Seite abgeführt wird und daß im Bereich des Drehtisches (3) ein horizontal reversierend gelagertes Distanzelement (13) angeordnet ist, welches in einen Zwischenraum zwischen einem leeren Formkasten (10) und dem in der Verdichtungsstation (C) befindlichen Formkasten (10b) einbringbar und mit den Formkästen (10, 10b) bewegbar ist.
- Formmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Sandfüllstation (A) mit Zuführmitteln (11a) zum Zuführen eines Formkastens (10) auf eine Modellplatte (5a) mit Mitteln (6) zum Aufsetzen eines Füllrahmens (8a) auf den Formkasten (10) und mit Mitteln (1a) zum Anheben der Modellplatte (5a), des Formkastens (10) und des Füllrahmens (8a) unter ein Sanddosiergerät (16) versehen ist.
- Formmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorverdichtungsstation (B) mit Mitteln (22) zum Anheben der Modellplatte (5b), des Formkastens (10d) und des Füllrahmens (8c) unter eine Belüftungshaube (19) versehen ist.
- Formmaschine nach Anspruch 3, dadurch gekennzeichnet, daß die Belüftungshaube (19) zur Aufbringung eines Gas-Druckstoßes zur Vorverdichtung ausgebildet ist.
- Formmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Verdichtungsstation (C) mit Mitteln (1b) zum Anheben der Modellplatte (5c), des Formkastens (10b) und des Füllrahmens (8b) in eine Verdichtungseinheit (17) und Mitteln (6) zum Abheben des Füllrahmens (8b) versehen ist.
- Formmaschine nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Mittel (6) zum Aufsetzen und Abnehmen des Füllrahmens (8) einen um die Mittelsäule (2) jeweils um 180° drehbaren Schwenkrahmen (6) umfassen.
- Formmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Modellwechselstation (D) Mittel (21) zum Entnehmen einer Modellplatte (5d) von dem Drehtisch (3) umfaßt.
- Formmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Mittel (1a, 1b, 21, 22) jeweils in Form eines Hubtisches ausgebildet sind.
- Formmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß im Bereich der Formmaschine Rollenbahnelemente (11) zum Transport der Formkästen (10) angeordnet sind.
- Formmaschine nach Anspruch 9, dadurch gekennzeichnet, daß die Rollenbahnelemente (11) zum wahlweisen Freigeben des Formkastens (10) seitlich bewegbar gelagert sind.
- Formmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Distanzelement (13) eine Länge von zwei Formkästen (10) aufweist.
- Formmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Distanzelement (13) in einem mittigen, im Bereich der Mittelsäule (2) angeordneten Lagerelement (14) gelagert ist und daß das Distanzelement (13) und/oder dessen Lagerelement (14) in die Transportbahn der Formkästen (10) einbringbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4305129A DE4305129A1 (de) | 1993-02-19 | 1993-02-19 | Formmaschine |
DE4305129 | 1993-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0611617A1 EP0611617A1 (de) | 1994-08-24 |
EP0611617B1 true EP0611617B1 (de) | 1998-08-12 |
Family
ID=6480867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93119833A Expired - Lifetime EP0611617B1 (de) | 1993-02-19 | 1993-12-09 | Formmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0611617B1 (de) |
DE (2) | DE4305129A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103801663B (zh) * | 2014-03-05 | 2015-12-02 | 孟昭贵 | 转盘式多工位静压造型机及其造型方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1198015B (de) * | 1952-07-21 | 1965-08-05 | Buderus Eisenwerk | Vollautomatisch arbeitende Drehtischformmaschine zum Herstellen von Sandformen fuer Giessereizwecke |
DE1058701B (de) * | 1955-08-24 | 1959-06-04 | Badische Maschinenfabrik A G S | Vorrichtung zum selbsttaetigen Abheben des Formkastens von der Modellplatte und zum selbsttaetigen Ausfahren des Formkastens bei selbsttaetig arbeitenden Drehtisch-Formmaschinen |
DE2048749A1 (de) * | 1970-10-03 | 1972-05-04 | Feller, Kurt W , Zurich (Schweiz) | Verfahren zur Herstellung von Giessfor men in Formkasten auf Formautomaten mit meh reren Arbeitsstationen mit vom Formkasten umlauf getrenntem Modellumlauf |
CH637313A5 (de) * | 1978-11-15 | 1983-07-29 | Fischer Ag Georg | Vorrichtung zur handhabung von modelleinrichtungen. |
DE8817014U1 (de) * | 1988-09-07 | 1991-11-21 | Heinrich Wagner Sinto Maschinenfabrik GmbH, 5928 Bad Laasphe | Formmaschine |
-
1993
- 1993-02-19 DE DE4305129A patent/DE4305129A1/de not_active Withdrawn
- 1993-12-09 EP EP93119833A patent/EP0611617B1/de not_active Expired - Lifetime
- 1993-12-09 DE DE59308870T patent/DE59308870D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4305129A1 (de) | 1994-08-25 |
DE59308870D1 (de) | 1998-09-17 |
EP0611617A1 (de) | 1994-08-24 |
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