EP0824983A1 - Low pressure die casting apparatus - Google Patents

Low pressure die casting apparatus Download PDF

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Publication number
EP0824983A1
EP0824983A1 EP97111160A EP97111160A EP0824983A1 EP 0824983 A1 EP0824983 A1 EP 0824983A1 EP 97111160 A EP97111160 A EP 97111160A EP 97111160 A EP97111160 A EP 97111160A EP 0824983 A1 EP0824983 A1 EP 0824983A1
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EP
European Patent Office
Prior art keywords
casting
stations
manipulation unit
station
mold
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
EP97111160A
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German (de)
French (fr)
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EP0824983B1 (en
Inventor
Harry Hässig
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Franke Technology and Trademark Ltd
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KWC AG
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants

Definitions

  • the present invention relates to a low-pressure die casting plant, which is characterized by the Features of claim 1.
  • the entire casting plant consists of two plant parts, the have a common core insertion station and so through a only operator can be operated. Because of that both parts of the system must be in the operating cycle can be coordinated, but otherwise operated independently of each other.
  • FIGS. 1 and 2 points the low-pressure die casting plant consisting of two parts I and II two at a distance from each other arranged casting stations 1, 101, each with a melting furnace 2, 102, which are arranged on a supporting frame 3 or 103 is.
  • the support structures not shown in FIGS. 3 to 7 3, 103 are supported on the foundry floor 4.
  • For System also includes a support frame 5, the four upright Supports 6, 7, 8, 9. All of these supports 6 to 9 consist of two support parts screwed together 6a, 6b; 7a, 7b and 9a, 9b.
  • front support 6 is in the upper Part angled, as can be seen in particular from Fig. 3 is.
  • the longitudinal axis of the upper support part 6b forms with the vertical longitudinal axis of the lower support part 6a an angle.
  • This training the front support 6 allows the larger width of the melting furnace 2 To take into account without making the entire casting system wider than need to build. Thanks to the subdivision of the supports 6 to 9 is in two screw-on support parts it is possible to disassemble the system into individual units, which can be transported without any major problems.
  • the supports 6, 7, 8 and 9 stand on the support structures 3, or 103 on the foundry floor 4.
  • a cross member rests on supports 6 and 7 or 8 and 9 10 or 11, which with the assigned supports 6, 7 or 8, 9 is connected. Support on these cross beams 10, 11 two longitudinal beams 12, 13, which are at a distance from one another and run parallel to each other. These side members 12, 13 lay a linear movement path 14 or 114 for a driving unit 15 or 115.
  • Driving unit 15, 115 is a manipulation unit 16, or 116 attached, each carrying a mold 17, the Mold halves are designated 17a and 17b (see in particular FIGS. 3 to 7). The on the Manipulation unit 116 attached mold is in the 1 and 2 not shown.
  • the more precise structure of the two identical Manipulation units 16 and 116 will be described later in FIG 3 to 7 will be explained in more detail.
  • the Driving units 15, 115 become the manipulation units 16 and 116 in the direction of arrow B, or B 'along the linear trajectory 14, 114 i.e. in the longitudinal direction of the Side members 12, 13 moved back and forth.
  • the support frame 5 further has three supports 106, 107 and 108, which in Fig. 1 are not shown.
  • Neighboring everyone Casting station 1 101 is a removal station 21 or 121, on which the castings to one side be led away.
  • a guide table 22 or 122 in the direction of arrow C or C '(Fig. 2) can be moved along a guide 23 or 123 (FIG. 1). Instead of such a path guide table 22, 122, one can also Gripper device for grasping and guiding away the Castings are provided.
  • Neighboring everyone Extraction station 21, 121 is a cooling and finishing station 18 and 118, respectively, which are a finishing bath 19 and 119 having.
  • the Driving unit 15 with manipulation unit 16 moves between the casting station 1 and the core insertion station 20, while the other driving unit 115 with the Manipulation unit 116 between the casting station 101 and the core insertion station 20 moves back and forth.
  • FIG. 2 there is also a cleaning device 24 provided that for periodic cleaning of the mold halves 17a, 17b is used.
  • This cleaning device 24 has a cleaning booth 25, the present Embodiment is designed as a sandblasting cabin.
  • the cleaning device 24 can in the direction of the arrow D are translated to move out of the shown in Fig. 2 waiting position in the working position to be able to be spent.
  • the cleaning device 24 is in this working position at the location of the Core loading station 20.
  • Manipulation unit 116 is of the same design as that Manipulation unit 16. The latter is in these FIGS. 3 to 7, however, only shown schematically and only so far shown that their functioning is recognizable.
  • the manipulation unit 16 has one with the chassis 15 connected support structure 30.
  • the supporting structure 30 can be raised and lowered in the direction of arrow E.
  • In the Support structure 30 is an elongated guide element 31 pivoted.
  • the pivot axis 32 of the guide element 31 runs parallel to the direction of movement B of the driving unit 15.
  • Two protrude from the guide element 31 Storage elements 33 and 34 away, one of which is a storage element 33 fixed and the other storage element 34 mounted linearly displaceable in the direction of arrow F. is.
  • With each bearing element 33, 34 is pivotable a support arm 35 and 36 connected.
  • the swivel axes 37 and 38 of the support arms 35 and 36 also run parallel to the direction of movement B of the driving unit 15 and are thus parallel to the pivot axis 32 of the guide element 31.
  • the mold halves are on these support arms 35, 36 17a and 17b attached.
  • the mold parting plane 39 in a vertical plane parallel to the direction of movement B of the driving unit 15 and the manipulation unit 16 runs (Fig. 3).
  • Fig. 3 (and left in Fig. 1) is the manipulation unit 16 shown in its one, first end position, in which is in casting station 1.
  • the closed mold 17 is located on the pouring mouth of the melting furnace 2.
  • the mold is made in a known manner filled with liquid metal. The filling process by controlling the pressure curve in the melting furnace 2 to the Adapted design of the casting to be manufactured.
  • the filled mold becomes 17 by an upward movement of the supporting structure 30 lifted in the direction of arrow E from Giessmund.
  • the Driving unit 15 is then together with the manipulation unit 16 to a first intermediate position, i.e. in the Withdrawal station 21, proceed.
  • the mold 17 With himself in the Removal station 21 of manipulation unit 16 the mold 17 is opened (see Fig. 4). this happens by a movement of the bearing element 34 in the direction arrow F to the outside.
  • the mold half 17b moved away from the mold half 17a.
  • ejector arranged in the support arms 35, 36 the finished casting is ejected from the mold and falls on the guide table 22, which is as shown in Fig. 4 is located below the open mold 17.
  • the manipulation unit 16 is then by means of the Driving unit 15 in a second intermediate position, i.e. in the cooling and finishing station 18 moves. 1 are in this second intermediate position drive unit and the manipulation unit with 15 'and 16' respectively.
  • Fig. 5 shows that in the Cooling and finishing station 18 located Manipulation unit 16.
  • the two are still opposite mold halves 17a and 17b are something moved apart and are then by pivoting the Brackets 35 and 36 about pivot axes 37 and 38 in In the direction of arrows G and H immersed in the size bath 19.
  • the mold halves immersed in the size bath 19 are designated 17a 'and 17b'.
  • the mold halves 17a ', 17b' are placed on the finishing bath 19 the optimal temperature cooled and with a sizing film overdrawn. Then the support arms 35 and 36 in Direction of arrows G and H again about their swivel axes 37 or 38 pivoted back until they reach their horizontal end position take and die mold halves 17a and 17b face again.
  • the driving unit 15 moves on the second end position, i.e. into the core insertion station 20.
  • the mold halves 17a and 17b are moved of the bearing element 34 in the direction of arrow F so far spread apart as necessary. At the same time it will Guide element 31 about its pivot axis 32 in the direction arrow I pivoted through 90 °.
  • FIG. 6 shows the guide element 31 takes a vertical position while the mold halves 17a, 17b are horizontal Take position. Inserting the core into the open Mold 17 takes place from the left-hand side as seen in FIG. 6 forth, as indicated by the arrow labeled K is. After the core has been inserted, the mold becomes 17 by retracting the bearing element 34 closed and the guide member 31 is in the direction of the arrow I about its pivot axis 32 in the horizontal Position swung back. The driving unit 15 moves the Manipulation unit 16 then back into the first End position, i.e. in the casting station 1. In this the mold 17 by lowering the support structure 30 in Direction of arrow E on the pouring mouth of the furnace 2 put on. The cycle described starts again from new.
  • the operation of the other part II is in Principle the same as above based on system part I described.
  • the manipulation unit 116 is from the first end position in which they are in the casting station 101 is in the first intermediate position (Removal station 121), then in the second intermediate position (Cooling and finishing station 118) and finally in the move the second end position (core insertion station 20) in order to then moved back to the first end position will. Since the core insertion station 20 two parts I and II in common are the operating cycles of the two Plant parts I and II shifted in time from each other. Is the second manipulation unit, as in the Fig.
  • the Mold halves 17a, 17b then protrude into the Cleaning cabin 25 and are blasted cleaned. After cleaning is finished Cleaning device 24 again in the waiting position moved back.
  • the manipulation unit 16 or 116 is by the drive unit 15 and 115 for cooling and Move finishing station 18 or 118. In addition, it will Guide element 31 again about the axis 32 in the Horizontal position swiveled.
  • the mold halves 17a, 17b are, as described with reference to FIG. 5, in the Plain bath 19 or 119 immersed and with a Plain film covered. Now the one explained above Arity cycle continue again (insert core, Pouring, casting, cooling and coating the mold halves with a finishing film).
  • the operation of the individual parts of the manipulation units is preferably done by hydraulic drives.
  • the driving units 15, 115 are advantageously by move an electric drive.
  • the two parts of the system I and II can be independent operated from each other, i.e. it can with the Plant according to the invention at the same time castings different materials. Nevertheless the space requirement is relatively small because thanks the special arrangement of the workstations Core insertion for both investment halves in the same place can be done. For inserting and cleaning the core Mold halves are only one operator required.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The casting plant includes dual independent casting workstations which sequentially interact with a common core inserting station, the dual workstations include casting removal stations, cooling and blackwash stations, and casting die travelling and manipulating units. The several workstations are compactly arranged, whereby only one operator is needed for core inserting and cleaning of the die halves. Each set of workstations may operate independently of the other set.

Description

Die vorliegende Erfindung betrifft eine Niederdruck-Kokillengiessanlage, die gekennzeichnet ist durch die Merkmale des Anspruches 1.The present invention relates to a low-pressure die casting plant, which is characterized by the Features of claim 1.

Die gesamte Giessanlage besteht aus zwei Anlageteilen, die eine gemeinsame Kerneinlegestation haben und so durch eine einzige Bedienungsperson bedient werden können. Deswegen müssen beide Anlageteile zwar im Betriebszyklus aufeinander abgestimmt werden, können aber im übrigen voneinander unabhängig betrieben werden.The entire casting plant consists of two plant parts, the have a common core insertion station and so through a only operator can be operated. Because of that both parts of the system must be in the operating cycle can be coordinated, but otherwise operated independently of each other.

Durch die besondere Anordnung der Arbeitsstationen entlang der linearen Bewegungsbahnen der Manipulationseinheiten entstehen kurze Fahrwege der letzteren zwischen den zugeordneten Arbeitsstationen, was eine verhältnismässig hohe Produktionsleistung ermöglicht.Due to the special arrangement of the work stations the linear trajectories of the manipulation units short routes of the latter arise between the assigned workstations, which is a proportionate enables high production output.

Bevorzugte Weiterausgestaltungen der erfindungsgemässen Niederdruck-Kokillengiessanlage bilden Gegenstand der abhängigen Ansprüche.Preferred further developments of the inventive Low-pressure die casting plant form the subject of the dependent Expectations.

Im folgenden wird ein Ausführungsbeispiel des Erfindungsgegenstandes anhand der Zeichnung erläutert. Es zeigen rein schematisch:

Fig. 1 und 2
in Seitenansicht bzw. in Draufsicht eine aus zwei Anlageteilen bestehende Niederdruck-Kokillengiessanlage; und
Fig. 3 bis 7
die einzelnen Arbeitsstationen des einen Anlageteils in Ansicht in Richtung des Pfeiles A in den Fig. 1 und 2.
An exemplary embodiment of the subject matter of the invention is explained below with reference to the drawing. It shows purely schematically:
1 and 2
in side view or in plan view of a low-pressure die casting system consisting of two system parts; and
3 to 7
the individual workstations of one part of the system in view in the direction of arrow A in FIGS. 1 and 2.

Von der in den Fig. 1 und 2 in Seitenansicht bzw. in Draufsicht gezeigten, aus zwei Anlageteilen I und II bestehenden Niederdruck-Kokillengiessanlage sind in den Fig. 3 bis 7 die einzelnen Arbeitsstationen des Anlageteils I in Ansicht in Richtung des Pfeiles A in den Fig. 1 und 2 dargestellt, wobei zum besseren Verständnis die in dieser Richtung A gesehen vor der jeweils gezeigten Arbeitsstation liegenden Arbeitsstationen nicht gezeigt sind.1 and 2 in side view and in Top view shown, from two system parts I and II existing low-pressure die casting plant are in the 3 to 7, the individual workstations of the Plant part I in view in the direction of arrow A in the 1 and 2, with a better understanding seen in this direction A in front of the one shown Workstation lying workstations not shown are.

Wie insbesondere aus den Fig. 1 und 2 hervorgeht, weist die aus zwei Anlageteilen I und II bestehende Niederdruck-Kokillengiessanlage zwei in einem Abstand voneinander angeordnete Giessstationen 1, 101 mit je einem Schmelzofen 2, 102 auf, der auf einem Traggerüst 3 bzw. 103 angeordnet ist. Die in den Fig. 3 bis 7 nicht gezeigten Traggerüste 3, 103 stützen sich auf dem Giessereiboden 4 ab. Zur Anlage gehört weiter ein Traggestell 5, das vier aufrechtstehende Stützen 6, 7, 8, 9 aufweist. Alle diese Stützen 6 bis 9 bestehen aus zwei miteinander verschraubten Stützenteilen 6a, 6b; 7a, 7b bzw. 9a, 9b. Die in Richtung des Pfeiles A gesehen linke, vordere Stütze 6 ist im oberen Teil abgewinkelt, wie das insbesondere aus Fig. 3 ersichtlich ist. Die Längsachse des oberen Stützenteiles 6b bildet mit der vertikalen Längsachse des unteren Stützenteiles 6a einen Winkel. Diese Ausbildung der vorderen Stütze 6 erlaubt es, der grösseren Breite des Schmelzofens 2 Rechnung zu tragen, ohne die ganze Giessanlage breiter als nötig bauen zu müssen. Dank der Unterteilung der Stützen 6 bis 9 in zwei miteinander verschraubbare Stützenteile ist es möglich, die Anlage in einzelne Einheiten zu zerlegen, welche sich ohne grosse Probleme transportieren lassen. Die Stützen 6, 7, 8 und 9 stehen auf den Traggerüsten 3, bzw. 103 auf dem Giessereiboden 4.As can be seen in particular from FIGS. 1 and 2, points the low-pressure die casting plant consisting of two parts I and II two at a distance from each other arranged casting stations 1, 101, each with a melting furnace 2, 102, which are arranged on a supporting frame 3 or 103 is. The support structures not shown in FIGS. 3 to 7 3, 103 are supported on the foundry floor 4. For System also includes a support frame 5, the four upright Supports 6, 7, 8, 9. All of these supports 6 to 9 consist of two support parts screwed together 6a, 6b; 7a, 7b and 9a, 9b. The towards the Arrow A seen left, front support 6 is in the upper Part angled, as can be seen in particular from Fig. 3 is. The longitudinal axis of the upper support part 6b forms with the vertical longitudinal axis of the lower support part 6a an angle. This training the front support 6 allows the larger width of the melting furnace 2 To take into account without making the entire casting system wider than need to build. Thanks to the subdivision of the supports 6 to 9 is in two screw-on support parts it is possible to disassemble the system into individual units, which can be transported without any major problems. The supports 6, 7, 8 and 9 stand on the support structures 3, or 103 on the foundry floor 4.

Auf den Stützen 6 und 7 bzw. 8 und 9 ruht je ein Querträger 10 bzw. 11, der mit den zugeordneten Stützen 6, 7 bzw. 8, 9 verbunden ist. Auf diesen Querträgern 10, 11 stützen sich zwei Längsträger 12, 13 ab, die in einem Abstand voneinander und zueinander parallel verlaufen. Diese Längsträger 12, 13 legen eine geradlinige Bewegungsbahn 14 bzw. 114 für eine Fahreinheit 15 bzw. 115 fest. An dieser Fahreinheit 15, 115 ist eine Manipulationseinheit 16, bzw. 116 befestigt, welche je eine Kokille 17 trägt, deren Kokillenhälften mit 17a und 17b bezeichnet sind (siehe insbesondere die Fig. 3 bis 7) . Die an der Manipulationseinheit 116 befestigte Kokille ist in den Fig. 1 und 2 nicht dargestellt.A cross member rests on supports 6 and 7 or 8 and 9 10 or 11, which with the assigned supports 6, 7 or 8, 9 is connected. Support on these cross beams 10, 11 two longitudinal beams 12, 13, which are at a distance from one another and run parallel to each other. These side members 12, 13 lay a linear movement path 14 or 114 for a driving unit 15 or 115. At this Driving unit 15, 115 is a manipulation unit 16, or 116 attached, each carrying a mold 17, the Mold halves are designated 17a and 17b (see in particular FIGS. 3 to 7). The on the Manipulation unit 116 attached mold is in the 1 and 2 not shown.

Der genauere Aufbau der beiden gleichartigen Manipulationseinheiten 16 und 116 wird später anhand der Fig. 3 bis 7 noch näher erläutert werden. Mittels der Fahreinheiten 15, 115 werden die Manipulationseinheiten 16 und 116 in Richtung des Pfeiles B, bzw. B' entlang der linearen Bewegungsbahn 14, 114 d.h. in Längsrichtung der Längsträger 12, 13, hin und herbewegt. Das Traggestell 5 weist weiter drei Stützen 106, 107 und 108 auf, die in Fig. 1 nicht gezeigt sind. The more precise structure of the two identical Manipulation units 16 and 116 will be described later in FIG 3 to 7 will be explained in more detail. By means of the Driving units 15, 115 become the manipulation units 16 and 116 in the direction of arrow B, or B 'along the linear trajectory 14, 114 i.e. in the longitudinal direction of the Side members 12, 13 moved back and forth. The support frame 5 further has three supports 106, 107 and 108, which in Fig. 1 are not shown.

Zwischen den beiden Giessstationen 1 und 101 sind in einer Reihe eine Anzahl von weiteren Arbeitsstationen angeordnet, die unterhalb der Bewegungsbahnen 14 und 114 der Fahreinheiten 15 bzw. 115 liegen. Benachbart zu jeder Giessstation 1, 101 befindet sich eine Entnahmestation 21 bzw. 121, an der die Gussteile nach einer Seite hin weggeführt werden. Hiezu dient ein Wegführtisch 22 bzw. 122, der in Richtung des Pfeiles C bzw. C' (Fig. 2) entlang einer Führung 23 bzw. 123 (Fig. 1) verfahrbar ist. Statt eines solchen Wegführtisches 22, 122 kann auch eine Greifereinrichtung zum Erfassen und Wegführen der Gussteile vorgesehen werden. Benachbart zu jeder Entnahmestation 21, 121 ist eine Kühl- und Schlichtstation 18 bzw. 118 angeordnet, die ein Schlichtbad 19 bzw. 119 aufweist. Zwischen den beiden Kühl- und Schlichtstationen 18, 118 befindet sich eine Kerneinlegestation 20, die beiden Anlageteilen I und II gemeinsam ist. Die Fahreinheit 15 mit der Manipulationseinheit 16 bewegt sich zwischen der Giessstation 1 und der Kerneinlegestation 20, während die andere Fahreinheit 115 mit der Manipulationseinheit 116 zwischen der Giessstation 101 und der Kerneinlegestation 20 hin und herfährt.Between the two casting stations 1 and 101 are in one Row a number of additional work stations arranged below the trajectories 14 and 114 the driving units are 15 or 115. Neighboring everyone Casting station 1, 101 is a removal station 21 or 121, on which the castings to one side be led away. A guide table 22 or 122, in the direction of arrow C or C '(Fig. 2) can be moved along a guide 23 or 123 (FIG. 1). Instead of such a path guide table 22, 122, one can also Gripper device for grasping and guiding away the Castings are provided. Neighboring everyone Extraction station 21, 121 is a cooling and finishing station 18 and 118, respectively, which are a finishing bath 19 and 119 having. Between the two cooling and finishing stations 18, 118 there is a core insertion station 20 which both parts of the system I and II is common. The Driving unit 15 with manipulation unit 16 moves between the casting station 1 and the core insertion station 20, while the other driving unit 115 with the Manipulation unit 116 between the casting station 101 and the core insertion station 20 moves back and forth.

Wie aus der Fig. 2 hervorgeht, ist weiter ein Reinigungsgerät 24 vorgesehen, das zum periodischen Reinigen der Kokillenhälften 17a, 17b dient. Dieses Reinigungsgerät 24 weist eine Reinigungskabine 25 auf, die beim vorliegenden Ausführungsbeispiel als Sandstrahlkabine ausgebildet ist. Zum Reinigungsgerät 24 gehört weiter ein Filter 26 sowie eine Plattform 27. Das Reinigungsgerät 24 kann in Richtung des Pfeiles D translatorisch verschoben werden, um aus der in Fig. 2 gezeigten Wartestellung in die Arbeitsstellung verbracht werden zu können. Das Reinigungsgerät 24 befindet sich in dieser Arbeitsstellung am Ort der Kerneinlegestation 20.As can be seen from FIG. 2, there is also a cleaning device 24 provided that for periodic cleaning of the mold halves 17a, 17b is used. This cleaning device 24 has a cleaning booth 25, the present Embodiment is designed as a sandblasting cabin. A filter 26 and also belongs to the cleaning device 24 a platform 27. The cleaning device 24 can in the direction of the arrow D are translated to move out of the shown in Fig. 2 waiting position in the working position to be able to be spent. The cleaning device 24 is in this working position at the location of the Core loading station 20.

Anhand der Fig. 3 bis 7 wird nun der Aufbau der Manipulationseinheit 16 beschrieben. Die andere Manipulationseinheit 116 ist gleich ausgebildet wie die Manipulationseinheit 16. Letztere ist in diesen Fig. 3 bis 7 jedoch nur rein schematisch gezeigt und nur soweit dargestellt, dass ihre Funktionsweise erkennbar ist.3 to 7 the structure of the manipulation unit 16 described. The other Manipulation unit 116 is of the same design as that Manipulation unit 16. The latter is in these FIGS. 3 to 7, however, only shown schematically and only so far shown that their functioning is recognizable.

Die Manipulationseinheit 16 weist eine mit dem Fahrwerk 15 verbundene Tragkonstruktion 30 auf. Die Tragkonstruktion 30 ist in Richtung des Pfeiles E heb- und senkbar. In der Tragkonstruktion 30 ist ein langgestrecktes Führungselement 31 schwenkbar gelagert. Die Schwenkachse 32 des Führungselementes 31 verläuft parallel zur Bewegungsrichtung B der Fahreinheit 15. Vom Führungselement 31 ragen zwei Lagerungselemente 33 und 34 weg, von denen das eine Lagerungselement 33 fest montiert und das andere Lagerungselement 34 in Richtung des Pfeiles F linear verschiebbar gelagert ist. Mit jedem Lagerungselement 33, 34 ist schwenkbar ein Tragarm 35 bzw. 36 verbunden. Die Schwenkachsen 37 bzw. 38 der Tragarme 35 bzw. 36 verlaufen ebenfalls parallel zur Bewegungsrichtung B der Fahreinheit 15 und sind somit parallel zur Schwenkachse 32 des Führungselementes 31. An diesen Tragarmen 35, 36 sind die Kokillenhälften 17a und 17b befestigt. In der in der Fig. 3 gezeigten Giessstellung der Kokille 17 liegt die Formtrennebene 39 in einer Vertikalebene, die parallel zur Bewegungsrichtung B der Fahreinheit 15 und der Manipulationseinheit 16 verläuft (Fig. 3). The manipulation unit 16 has one with the chassis 15 connected support structure 30. The supporting structure 30 can be raised and lowered in the direction of arrow E. In the Support structure 30 is an elongated guide element 31 pivoted. The pivot axis 32 of the guide element 31 runs parallel to the direction of movement B of the driving unit 15. Two protrude from the guide element 31 Storage elements 33 and 34 away, one of which is a storage element 33 fixed and the other storage element 34 mounted linearly displaceable in the direction of arrow F. is. With each bearing element 33, 34 is pivotable a support arm 35 and 36 connected. The swivel axes 37 and 38 of the support arms 35 and 36 also run parallel to the direction of movement B of the driving unit 15 and are thus parallel to the pivot axis 32 of the guide element 31. The mold halves are on these support arms 35, 36 17a and 17b attached. In the one shown in FIG Casting position of the mold 17 is the mold parting plane 39 in a vertical plane parallel to the direction of movement B of the driving unit 15 and the manipulation unit 16 runs (Fig. 3).

Anhand der Fig. 3 bis 7 wird nun die Funktionsweise des Anlageteils I der Niederdruck-Kokillengiessanlage näher erläutert.3 to 7, the operation of the Part I of the low-pressure die casting plant closer explained.

In der Fig. 3 (und links in Fig. 1) ist die Manipulationseinheit 16 in ihrer einen, ersten Endstellung gezeigt, in der sie sich in der Giessstation 1 befindet. Die geschlossene Kokille 17 befindet sich auf dem Giessmund des Schmelzofens 2. Die Kokille wird auf bekannte Weise mit flüssigem Metall gefüllt. Dabei wird der Füllvorgang durch Steuerung des Druckverlaufes im Schmelzofen 2 an die Ausgestaltung des herzustellenden Gussteils angepasst.In Fig. 3 (and left in Fig. 1) is the manipulation unit 16 shown in its one, first end position, in which is in casting station 1. The closed mold 17 is located on the pouring mouth of the melting furnace 2. The mold is made in a known manner filled with liquid metal. The filling process by controlling the pressure curve in the melting furnace 2 to the Adapted design of the casting to be manufactured.

Nach Beendigung des Giessvorgangs wird die gefüllte Kokille 17 durch eine Aufwärtsbewegung der Tragkonstruktion 30 in Richtung des Pfeiles E vom Giessmund abgehoben. Die Fahreinheit 15 wird dann zusammen mit der Manipulationseinheit 16 in eine erste Zwischenstellung, d.h. in die Entnahmestation 21, verfahren. Bei sich in der Entnahmestation 21 befindlicher Manipulationseinheit 16 wird die Kokille 17 geöffnet (siehe Fig. 4). Dies erfolgt durch eine Bewegung des Lagerungselementes 34 in Richtung des Pfeiles F gegen aussen. Dabei wird die Kokillenhälfte 17b von der Kokillenhälfte 17a wegbewegt. Mittels nicht gezeigter, in den Tragarmen 35, 36 angeordneter Ausstosser wird das fertige Gussstück aus der Form ausgestossen und fällt auf den Wegführtisch 22, der sich wie in Fig. 4 gezeigt unterhalb der offenen Kokille 17 befindet. Anschliessend wird der Wegführtisch 22 in Richtung des Pfeiles C nach aussen, d.h. aus der Entnahmestation 21 heraus, bewegt. Wird anstelle eines solchen Wegführtisches 22 ein Entnahmegreifer verwendet, so erfasst dieser das Gussstück und fördert letzteres aus der offenen Kokille 17 heraus weg. Sobald der Wegführtisch 22 entladen ist, fährt er wieder zurück in die Beladeposition.After the casting process is complete, the filled mold becomes 17 by an upward movement of the supporting structure 30 lifted in the direction of arrow E from Giessmund. The Driving unit 15 is then together with the manipulation unit 16 to a first intermediate position, i.e. in the Withdrawal station 21, proceed. With himself in the Removal station 21 of manipulation unit 16 the mold 17 is opened (see Fig. 4). this happens by a movement of the bearing element 34 in the direction arrow F to the outside. The mold half 17b moved away from the mold half 17a. By not shown ejector arranged in the support arms 35, 36 the finished casting is ejected from the mold and falls on the guide table 22, which is as shown in Fig. 4 is located below the open mold 17. Subsequently the guide table 22 in the direction of the arrow C outwards, i.e. out of the removal station 21, emotional. Instead of such a guide table 22 Removal gripper used, this grips the casting and promotes the latter out of the open mold 17 path. As soon as the guide table 22 is unloaded, it moves back to the loading position.

Die Manipulationseinheit 16 wird anschliessend mittels der Fahreinheit 15 in eine zweite Zwischenstellung, d.h. in die Kühl- und Schlichtstation 18, bewegt. In der Fig. 1 sind die sich in dieser zweiten Zwischenstellung befindliche Fahreinheit und die Manipulationseinheit mit 15' bzw. 16' bezeichnet. Fig. 5 zeigt die sich in der Kühl- und Schlichtstation 18 befindliche Manipulationseinheit 16. Die beiden sich noch immer gegenüberliegenden Kokillenhälften 17a und 17b sind etwas auseinandergefahren und werden dann durch Verschwenken der Tragarme 35 und 36 um die Schwenkachsen 37 bzw. 38 in Richtung der Pfeile G bzw. H in das Schlichtbad 19 eingetaucht. Die in das Schlichtbad 19 eingetauchten Kokillenhälften sind mit 17a' und 17b' bezeichnet. Im Schlichtbad 19 werden die Kokillenhälften 17a', 17b' auf die optimale Temperatur abgekühlt und mit einem Schlichtfilm überzogen. Dann werden die Tragarme 35 und 36 in Richtung der Pfeile G bzw. H wieder um ihre Schwenkachsen 37 bzw. 38 zurückgeschwenkt, bis sie ihre horizontale Endlage einnehmen und sich die Kokillenhälften 17a und 17b wieder gegenüberliegen. Die Fahreinheit 15 fährt weiter in die zweite Endstellung, d.h. in die Kerneinlegestation 20. Die Kokillenhälften 17a und 17b werden durch Verschieben des Lagerungselementes 34 in Richtung des Pfeiles F soweit als nötig auseinandergefahren. Gleichzeitig wird das Führungselement 31 um seine Schwenkachse 32 in Richtung des Pfeiles I um 90° verschwenkt. Wie die Fig. 6 zeigt, nimmt dabei das Führungselement 31 eine vertikale Stellung ein, während die Kokillenhälften 17a, 17b eine horizontale Lage einnehmen. Das Einlegen des Kernes in die offene Kokille 17 erfolgt von der in Fig. 6 gesehen linken Seite her, wie das durch den mit K bezeichneten Pfeil angedeutet ist. Nach erfolgtem Einlegen des Kernes wird die Kokille 17 durch Zurückfahren des Lagerungselementes 34 geschlossen und das Führungselement 31 wird in Richtung des Pfeiles I um seine Schwenkachse 32 in die horizontale Lage zurückverschwenkt. Die Fahreinheit 15 verfährt die Manipulationseinheit 16 dann wieder zurück in die erste Endstellung, d.h. in die Giessstation 1. In dieser wird die Kokille 17 durch Senken der Tragkonstruktion 30 in Richtung des Pfeiles E auf den Giessmund des Schmelzofens 2 aufgesetzt. Der beschriebene Zyklus beginnt wieder von neuem.The manipulation unit 16 is then by means of the Driving unit 15 in a second intermediate position, i.e. in the cooling and finishing station 18 moves. 1 are in this second intermediate position drive unit and the manipulation unit with 15 'and 16' respectively. Fig. 5 shows that in the Cooling and finishing station 18 located Manipulation unit 16. The two are still opposite mold halves 17a and 17b are something moved apart and are then by pivoting the Brackets 35 and 36 about pivot axes 37 and 38 in In the direction of arrows G and H immersed in the size bath 19. The mold halves immersed in the size bath 19 are designated 17a 'and 17b'. in the The mold halves 17a ', 17b' are placed on the finishing bath 19 the optimal temperature cooled and with a sizing film overdrawn. Then the support arms 35 and 36 in Direction of arrows G and H again about their swivel axes 37 or 38 pivoted back until they reach their horizontal end position take and die mold halves 17a and 17b face again. The driving unit 15 moves on the second end position, i.e. into the core insertion station 20. The mold halves 17a and 17b are moved of the bearing element 34 in the direction of arrow F so far spread apart as necessary. At the same time it will Guide element 31 about its pivot axis 32 in the direction arrow I pivoted through 90 °. 6 shows the guide element 31 takes a vertical position while the mold halves 17a, 17b are horizontal Take position. Inserting the core into the open Mold 17 takes place from the left-hand side as seen in FIG. 6 forth, as indicated by the arrow labeled K is. After the core has been inserted, the mold becomes 17 by retracting the bearing element 34 closed and the guide member 31 is in the direction of the arrow I about its pivot axis 32 in the horizontal Position swung back. The driving unit 15 moves the Manipulation unit 16 then back into the first End position, i.e. in the casting station 1. In this the mold 17 by lowering the support structure 30 in Direction of arrow E on the pouring mouth of the furnace 2 put on. The cycle described starts again from new.

Die Funktionsweise des anderen Anlageteils II ist im Prinzip dieselbe wie vorstehend anhand des Anlageteils I beschrieben. Die Manipulationseinheit 116 wird aus der ersten Endstellung, in der sie sich in der Giessstation 101 befindet, in die erste Zwischenstellung (Entnahmestation 121), dann in die zweite Zwischenstellung (Kühl- und Schlichtstation 118) und schliesslich in die zweite Endstellung (Kerneinlegestation 20) verfahren, um dann wieder zurück in die erste Endstellung bewegt zu werden. Da die Kerneinlegestation 20 beiden Anlageteilen I und II gemeinsam ist, sind die Betriebszyklen der beiden Anlageteile I und II zeitlich gegeneinander verschoben. Befindet sich die zweite Manipulationseinheit, wie in der Fig. 1 gestrichelt dargestellt und mit 116' bezeichnet, in der zweiten Endstellung (Kerneinlegestation 20), so befindet sich die erste Manipulationseinheit 16 in ihrer ersten Endstellung (Giessstation 1) oder bereits in der ersten Zwischenstellung (Entnahmestation 21). Anders ausgedrückt findet jeweils im einen Anlageteil I bzw. II der Giessvorgang statt, während im andern Anlageteil II bzw. I in der Kerneinlegestation 20 ein neuer Kern in die Kokillenhälften eingelegt wird.The operation of the other part II is in Principle the same as above based on system part I described. The manipulation unit 116 is from the first end position in which they are in the casting station 101 is in the first intermediate position (Removal station 121), then in the second intermediate position (Cooling and finishing station 118) and finally in the move the second end position (core insertion station 20) in order to then moved back to the first end position will. Since the core insertion station 20 two parts I and II in common are the operating cycles of the two Plant parts I and II shifted in time from each other. Is the second manipulation unit, as in the Fig. 1 shown in dashed lines and designated 116 ', in the second end position (core insertion station 20), see above is the first manipulation unit 16 in it first end position (casting station 1) or already in the first intermediate position (removal station 21). Different expressed in each case in a plant part I or II the casting process takes place, while in the other part II or I in the core insertion station 20 a new core in the Mold halves is inserted.

Nach einer bestimmten Anzahl von Arbeitszyklen ist es notwendig, die Kokillenhälften 17a, 17b zu reinigen. Zu diesem Zwecke wird bei sich in der Kerneinlagestation 20 befindlicher Manipulationseinheit 16 bzw. 116 nach der Entnahme eines Gussteiles das Führungselement 31 um seine Schwenkachse 32 in Richtung des Pfeiles I im Uhrzeigersinn verschwenkt, so dass die Kokillenhälften 17a, 17b gegen die Bedienungsseite für das Kerneinlegen gerichtet sind. Die Tragarme 35, 36 werden um ihre Schwenkachsen 37, 38 in Richtung der Pfeile G bzw. H in eine horizontale Lage verschwenkt. Die beiden Kokillenhälften 17a, 17b sind nun in Richtung des Pfeiles A gesehen von der linken Seite der Anlage her zugänglich, wie das Fig. 7 zeigt. Nun wird das Reinigungsgerät 24 von der in Fig. 2 gezeigten Warteposition in die Arbeitsposition verschoben. Die Kokillenhälften 17a, 17b ragen dann in die Reinigungskabine 25 hinein und werden durch Sandstrahlen gereinigt. Nach beendigter Reinigung wird das Reinigungsgerät 24 wieder in die Wartestellung zurückverschoben. Die Manipulationseinheit 16 bzw. 116 wird durch die Fahreinheit 15 bzw. 115 zur Kühl- und Schlichtstation 18 bzw. 118 verfahren. Zudem wird das Führungselement 31 wieder um die Achse 32 in die Horizontallage verschwenkt. Die Kokillenhälften 17a, 17b werden, wie anhand der Fig. 5 beschrieben, in das Schlichtbad 19 bzw. 119 eingetaucht und mit einem Schlichtfilm überzogen. Nun kann der vorangehend erläuterte Arheitszyklus wieder weiterlaufen (Kerneinlegen, Giessen, Gussteilentnahme, Kühlen und Überziehen der Kokillenhälften mit einem Schlichtfilm).After a certain number of work cycles, it is necessary to clean the mold halves 17a, 17b. To this Purpose is in the core insert 20 located manipulation unit 16 or 116 after the Removal of a casting, the guide element 31 to his Pivot axis 32 in the direction of arrow I clockwise pivoted so that the mold halves 17a, 17b against the operator side is directed for core loading. The support arms 35, 36 are about their pivot axes 37, 38 in Direction of arrows G and H in a horizontal position panned. The two mold halves 17a, 17b are now seen in the direction of arrow A from the left side of the Plant accessible, as shown in FIG. 7. Now it will Cleaning device 24 of that shown in Fig. 2 Waiting position moved to the working position. The Mold halves 17a, 17b then protrude into the Cleaning cabin 25 and are blasted cleaned. After cleaning is finished Cleaning device 24 again in the waiting position moved back. The manipulation unit 16 or 116 is by the drive unit 15 and 115 for cooling and Move finishing station 18 or 118. In addition, it will Guide element 31 again about the axis 32 in the Horizontal position swiveled. The mold halves 17a, 17b are, as described with reference to FIG. 5, in the Plain bath 19 or 119 immersed and with a Plain film covered. Now the one explained above Arity cycle continue again (insert core, Pouring, casting, cooling and coating the mold halves with a finishing film).

Die Betätigung der einzelnen Teile der Manipulationseinheiten erfolgt vorzugsweise durch hydraulische Antriebe. Die Fahreinheiten 15, 115 werden vorteilhafterweise durch einen elektrischen Antrieb verfahren.The operation of the individual parts of the manipulation units is preferably done by hydraulic drives. The driving units 15, 115 are advantageously by move an electric drive.

Die beiden Anlageteile I und II können unabhängig voneinander betrieben werden, d.h. es können mit der erfindungsgemässen Anlage gleichzeitig Gussteile aus unterschiedlichen Werkstoffen hergestellt werden. Trotzdem ist der Platzbedarf verhältnissmässig gering, weil dank der besonderen Anordnung der Arbeitsstationen das Kerneinlegen für beide Anlagehälften am selben Ort erfolgen kann. Für das Kerneinlegen und das Reinigen der Kokillenhälften ist nur eine Bedienungsperson erforderlich.The two parts of the system I and II can be independent operated from each other, i.e. it can with the Plant according to the invention at the same time castings different materials. Nevertheless the space requirement is relatively small because thanks the special arrangement of the workstations Core insertion for both investment halves in the same place can be done. For inserting and cleaning the core Mold halves are only one operator required.

Durch die gewählte Anordnung der verschiedenen Arbeitsstationen ergeben sich kurze Fahrwege der Fahreinheiten 15 und 115 und der Manipulationseinheiten 16 und 116. Diese beiden Einheiten 15, 16 bzw. 115, 116 bewegen sich von einer ersten Endstellung in eine erste Zwischenstellung, von dieser in eine zweite Zwischenstellung, dann in eine zweite Endstellung und anschliessend zurück in die erste Endstellung.Due to the chosen arrangement of the different work stations there are short travel paths for the driving units 15 and 115 and manipulation units 16 and 116. These both units 15, 16 and 115, 116 move from a first end position in a first intermediate position, from this to a second intermediate position, then to one second end position and then back to the first End position.

Claims (7)

Niederdruck-Kokillengiessanlage mit zwei in einem Abstand voneinander angeordneten, je einen Schmelzofen (2, 102) aufweisenden Giessstationen (1, 101), mit einer Anzahl von weiteren, in einer Reihe zwischen den beiden Giessstationen (1, 101) angeordneten Arbeitsstationen, nämlich zwei je zu einer der beiden Giessstationen (1, 101) benachbarten Entnahmestationen (21, 121) für die Gussteile, zwei je zu einer der beiden Entnahmestationen (21, 121) benachbarten, Kühl- und Schlichtstationen (18, 118) und einer zwischen den beiden Kühl- und Schlichtstationen (18, 118) angeordneten Kerneinlegestation (20), und mit zwei jeweils zwei Kokillenhälften (17a, 17b) tragenden Manipulationseinheiten (16, 116), von denen jede entlang einer linearen, oberhalb der Giessstationen (1, 101) und der weiteren Arbeitsstationen (18, 20, 21, 118, 121) verlaufenden Bewegungsbahn (14, 114) zwischen einer ersten Endposition, in der sie sich in der zugeordneten Giessstation (1, 101) befindet, und einer zweiten Endposition, in der sie sich in der Kerneinlegestation (20) befindet, hin und herverfahrbar ist und in zwischen den Endpositionen liegenden Zwischenpositionen in der zugeordneten Entnahmestation (21, 121) und der zugeordneten Kühl- und Schlichtstation (18, 118) anhaltbar ist, wobei die beiden Kokillenhälften (17a, 17b) der Manipulationseinheiten (16, 116) derart an der jeweils zugeordneten Manipulationseinheit (16, 116) angeordnet sind, dass in der Giessstellung der Kokille (17) die Formtrennebene (39) in einer zur Bewegungsrichtung (B, B') der entsprechenden Manipulationseinheit (16, 116) parallelen Vertikalebene liegt.Low-pressure die casting plant with two in one A melting furnace is arranged at a distance from each other (2, 102) having casting stations (1, 101), with a number of others, in a row between the two casting stations (1, 101) arranged Workstations, namely two for each of the two Casting stations (1, 101) adjacent removal stations (21, 121) for the castings, two for each of the two removal stations (21, 121) adjacent, cooling and Finishing stations (18, 118) and one between the two cooling and finishing stations (18, 118) arranged core insertion station (20), and with two each carrying two mold halves (17a, 17b) Manipulation units (16, 116), each of which along a linear, above the casting stations (1, 101) and the further work stations (18, 20, 21, 118, 121) running movement path (14, 114) between a first end position in which they are in the associated casting station (1, 101), and a second end position in which they are in the Core insertion station (20) is located here and there is moved and in between the end positions lying intermediate positions in the assigned Withdrawal station (21, 121) and the associated cooling and Finishing station (18, 118) can be stopped, the two mold halves (17a, 17b) of the Manipulation units (16, 116) on the respective assigned manipulation unit (16, 116) are that in the casting position of the mold (17) Mold parting plane (39) in a direction of movement (B, B ') of the corresponding manipulation unit (16, 116) parallel vertical plane. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass jede Manipulationseinheit (16, 116) an einer Fahreinheit (15, 115) angebracht ist, die entlang wenigstens eines, sich am Traggestell (5) abstützenden Längsträgers (12,13) verfahrbar geführt ist.System according to claim 1, characterized in that each manipulation unit (16, 116) on one Driving unit (15, 115) is attached along at least one that is supported on the support frame (5) The longitudinal beam (12, 13) is guided to be movable. Anlage nach Anspruch 1 oder 2, gekennzeichnet durch ein Reinigungsgerät (24) für die Kokillen (17), das von einer Wartestellung in eine Arbeitsstellung bringbar ist, in der bei einer sich in der Kerneinlegestation (20) befindlichen Manipulationseinheit (16, 116) die Kokillenhälften (17a, 17b) gereinigt werden.Plant according to claim 1 or 2, characterized by a cleaning device (24) for the molds (17), the from a waiting position to a working position is feasible in which one in the Core insertion station (20) located Manipulation unit (16, 116) the mold halves (17a, 17b) can be cleaned. Anlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Kokillenhälften (17a, 17b) aufeinander zu und voneinander weg bewegbar und um jeweils 90° um eine gemeinsame Schwenkachse (32), die parallel zur Bewegungsrichtung (B, B') der zugeordneten Manipulationseinheit (16, 116) verläuft, schwenkbar in dieser Manipulationseinheit (16, 116) gelagert sind.System according to one of claims 1 to 3, characterized in that that the mold halves (17a, 17b) on top of each other movable to and from each other and by each 90 ° around a common pivot axis (32), the parallel to the direction of movement (B, B ') of the associated manipulation unit (16, 116), pivotable in this manipulation unit (16, 116) are stored. Anlage nach Anspruch 4, dadurch gekennzeichnet, dass jede Kokillenhälfte (17a, 17b) zusätzlich um eine eigene Schwenkachse (37, 38), die parallel zur Bewegungsrichtung (B, B') der zugeordneten Manipulationseinheit (16, 116) verläuft, um jeweils 90° verschwenkbar ist. System according to claim 4, characterized in that each mold half (17a, 17b) additionally by one own swivel axis (37, 38) parallel to the direction of movement (B, B ') of the assigned Manipulation unit (16, 116) runs to each Is pivotable 90 °. Anlage nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Traggestell (5) vier in den Ecken eines Vierecks angeordnete Stützen (6, 7, 8, 9) aufweist, die paarweise jeweils mittels eines Querträgers (10, 11) miteinander verbunden sind und dass auf den Querträgern (10, 11) mindestens ein, sich etwa rechtwinklig zu diesen erstreckender Längsträger (12, 13) abgestützt ist.System according to one of claims 1 to 5, characterized in that that the support frame (5) four in the Columns arranged in corners of a square (6, 7, 8, 9) has, in pairs each by means of a cross member (10, 11) are connected to each other and that on the cross beams (10, 11) at least one, itself longitudinal beam (12, 13) is supported. Anlage nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass jede der beiden Kühl- und Schlichtstationen (18, 118) ein Schlichtbad (19, 119) aufweist.Plant according to one of claims 1-6, characterized characterized that each of the two cooling and Finishing stations (18, 118) a finishing bath (19, 119) having.
EP97111160A 1996-08-23 1997-07-03 Low pressure die casting apparatus Expired - Lifetime EP0824983B1 (en)

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CN1180597A (en) 1998-05-06
IT237865Y1 (en) 2000-09-29
JPH10113760A (en) 1998-05-06
CN1081500C (en) 2002-03-27
KR100237080B1 (en) 2000-01-15
EP0824983B1 (en) 1999-09-29
DE59700497D1 (en) 1999-11-04
ITMI970614U1 (en) 1999-02-18
ES2137035T3 (en) 1999-12-01
KR19980018706A (en) 1998-06-05
DE29710930U1 (en) 1997-08-14
ATE185096T1 (en) 1999-10-15
JP3145964B2 (en) 2001-03-12
TW338735B (en) 1998-08-21
US5937931A (en) 1999-08-17
CH692222A5 (en) 2002-03-28

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