EP3511090A1 - Cold chamber pressure casting method and cold chamber pressure casting machine - Google Patents

Cold chamber pressure casting method and cold chamber pressure casting machine Download PDF

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Publication number
EP3511090A1
EP3511090A1 EP18151741.8A EP18151741A EP3511090A1 EP 3511090 A1 EP3511090 A1 EP 3511090A1 EP 18151741 A EP18151741 A EP 18151741A EP 3511090 A1 EP3511090 A1 EP 3511090A1
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EP
European Patent Office
Prior art keywords
casting
chamber
die
piston
casting chamber
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Granted
Application number
EP18151741.8A
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German (de)
French (fr)
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EP3511090B1 (en
Inventor
Höhr Heribert
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Druckguss Service Deutschland GmbH
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Druckguss Service Deutschland GmbH
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Priority to HUE18151741A priority Critical patent/HUE061923T2/en
Priority to ES18151741T priority patent/ES2836523T3/en
Priority to EP18151741.8A priority patent/EP3511090B1/en
Priority to PL18151741T priority patent/PL3511090T3/en
Publication of EP3511090A1 publication Critical patent/EP3511090A1/en
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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
    • B22D17/20—Accessories: Details
    • B22D17/2076—Cutting-off equipment for sprues or ingates
    • 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
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion
    • 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
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • B22D17/2281—Sprue channels closure devices therefor

Definitions

  • the invention relates to a Kalthuntdruckg machineclar and a Kalthunttikg manmaschine with the features listed in the preamble of claim 5.
  • the present invention relates to a cold chamber die casting method and to a cold chamber die casting machine having a vertical casting chamber arrangement.
  • the Kaltshutting domesticmaschine described therein is intended for die casting of aluminum parts with central sprue and has two oppositely arranged die casting molds, which each have a sprue, which opens transversely near the lower end of a vertical casting chamber.
  • This casting chamber is closed at the bottom by an opposing piston, wherein the pressure to be applied for the casting process is applied by a casting piston coming from above.
  • the counter-piston serves on the one hand for closing the casting chamber down and on the other hand for shearing and ejecting the located in the casting chamber Casting residue in the area of the mouth of the sprues.
  • the counter-piston during filling of the casting chamber and the actual casting process, in which the casting piston kraftbeaufschlagt moves into the casting chamber down to the closure of the casting chamber below. As soon as the casting material has solidified, the counter-piston is then moved upwards in order to shear off the casting residue in the casting chamber in the region of the mouth of the runner channels and to remove it from the casting chamber.
  • the invention according to the invention the object of improving a Kalthuntdruckg manmaschine of which the Kalthunttikg manmaschine can be performed.
  • This machine should also be improved in structure and function over known machines.
  • liquid casting material is introduced into a bottom-closed vertical casting chamber, which is subsequently pressed into at least one die by inserting a casting piston via at least one casting channel adjoining the casting chamber, the workpiece being removed from the die after a cooling time becomes.
  • the invention then, typically after the cooling time or even before the casting chamber opened down and the casting plunger for removing the casting residue located in the casting chamber down to beyond the at least one runner down, so that the casting residue is removed through a lower opening of the casting chamber.
  • the inventive method and the machine according to the invention are intended in particular for the production of aluminum parts with a central sprue.
  • the basic idea of the process according to the invention is therefore to remove the casting residue, ie. H. a shearing of the casting residue from the material solidified in the runner not by an opposing piston, but to be removed in the downward direction by the casting piston itself.
  • the casting piston continues to move downwards relative to its position at the end of the die casting process, thereby shearing off the sprue or the sprues and pressing the remaining casting residue out of the casting chamber, which is then open at the bottom.
  • This method has the significant advantage that it can be completely dispensed with an opposed piston and the associated control.
  • the Kaltshutting domestic domestic product advantageously takes place simultaneously with two die casting molds which advantageously offset by 180 ° back to back, surrounding the casting chamber are arranged such that their sprues opposite open in the casting chamber, so that they can be filled simultaneously with liquid casting material.
  • the use of two die casting molds has proved to be particularly economical and structurally favorable.
  • the sprue channel or sprue passages are kept closed with liquid casting material when the casting chamber is filled. This ensures that only after pressure buildup in the casting chamber, the sprue channels are opened and thus the liquid casting material can be pressed under pressure into the die or die casting molds. It is provided according to the invention, the sprue or the sprue channels to open only when the casting piston has pressurized the liquid casting material or simultaneously with pressure build-up.
  • the cold chamber pressure casting machine according to the invention which is provided and suitable in particular for carrying out the cold chamber pressure casting method according to the invention, has at least one cavity in at least one die which is connected to the latter via at least one sprue channel which is preferably transverse to the casting chamber. It is provided a casting piston, which enters from above into the vertical casting chamber and in this longitudinally movable.
  • the casting chamber is designed to be open at the bottom and closable beyond the connection of the at least one sprue channel by means of a slide.
  • the slider is thus located below the mouth of the runner or gates in the casting chamber and serves to close the casting chamber down when it is filled and when subsequently the casting piston is shut down to the liquid casting material through the runner into the cavity of Press die to press.
  • this slide - hereinafter referred to as the main spool -, opened, so that the casting chamber is open at the bottom, after which the casting piston is moved to shave the sprue down further, until the casting residue falls out through the lower opening of the casting chamber.
  • the main structural advantage that results from this is that can be completely dispensed with the otherwise conventional piston and the counter piston control required therewith.
  • the provided for closing the casting chamber main slide is advantageously arranged transversely to the otherwise cylindrical casting chamber, thus can absorb relatively high forces that arise during die casting when shutting down the casting piston. Since the shearing off of the sprues takes place by the casting piston itself, comparatively high shearing forces are available here, which enable a reliable and reliable removal of the casting residue from the casting chamber. In this case, the removal of the casting residue is gravity assisted, this falls out of the casting chamber with open main slide down and is either there to collect in a collection container or fed directly to a reuse by a corresponding conveyor.
  • each runner is shut off by means of a slide, such - called gate follower - slide is advantageously arranged transversely to the channel and separates the channel without undercuts over its entire cross-section.
  • This sprue gate valve or these sprue gate valves serve to shut off the casting chamber from the cavity or the cavities during filling of the casting chamber in order to be able to control the filling process by opening the gate valve or gates when the pressure buildup has taken place through the casting piston.
  • the casting chamber is formed widened beyond the main slide, so as to form an ejection opening and to allow falling out of the casting residue from the casting chamber.
  • the slide according to the invention in particular the main slide, designed so that they completely release the G easily screeningquerrough in the open position.
  • the slides can according to the invention as a longitudinal slide, d. H. be formed with a linear travel direction typically transverse to the channel to be closed or as a rotary valve.
  • the slides can be advantageously designed as round or flat slide and typically, but not necessarily, hydraulically controlled.
  • the cold chamber die casting machine according to the invention thus has a casting chamber which is free of opposing pistons, this is functionally replaced by the main slide on the one hand and the casting piston passing through from above.
  • a conveyor device in particular a conveyor belt is provided under the casting chamber, with which the casting residue ejected downwards can be carried away and fed to a further use.
  • Kaltshudruckg foolmaschine corresponds in its basic structure of the prior art and is therefore not described and illustrated here, but only in the areas which relate to the present invention and in which the machine basically differs in their structure from the prior art.
  • the illustrated Kaltshutting domesticmaschine 1 has a vertically arranged cylindrical casting chamber 2, in which a casting piston 3 is movable.
  • the casting piston 3 is connected to a piston rod 4 of a hydraulic cylinder 5, which controls the casting piston 3.
  • the casting chamber 2 Down the casting chamber 2 can be locked by a main slide 6, which has a cylindrical shape, the casting chamber 2 passes completely and without undercuts and is hydraulically controllable. Below the main slide 6, the casting chamber 2 is widened to an ejection opening 7, to which a downwardly further expanded area 8 in the form of a tube connects.
  • the runners 9 each have near their junction in the casting chamber 2 arranged transversely to the respective channel and the channel completely and without undercuts passing through sprue slide 10, with which the respective sprue 9 is shut off.
  • the sprue channels themselves are, as usual in such machines, tapered towards the casting chamber 2 and open at the other end in each case into a cavity 11 of a die casting tool 12, in which the workpiece is formed.
  • the casting chamber 2 is surrounded by the fixed mold parts 13 of the die casting tool 12, which are quasi back to back, so offset by 180 ° about the central longitudinal axis of the casting chamber 2 to each other.
  • Each die casting tool 12 is completed by a movable tool part 14, which in turn is supported in the machine frame.
  • FIGS. 2 to 4 The operation of the machine according to the invention is based on FIGS. 2 to 4 shown, wherein the slide position of the Fig. 2 in Fig. 5 enlarged and the Fig. 4 in Fig. 6 are shown enlarged.
  • the in Fig. 2 shown position of the casting piston 3 is completely moved out of the casting chamber 2 upwards, the two gate valves 10 and the main slide 6 are closed, close that is, the sprue channels 9 or the casting chamber 2 over their entire cross section.
  • the casting chamber 2, which is then open at the top is filled with liquid casting material until the desired filling quantity has been filled.
  • the casting piston 3 is lowered down to the surface of the liquid material from above into the casting chamber 2.
  • the casting piston 3 is subjected to a downward force and the gate valves 10 are opened, wherein the casting piston 3 is moved downwards until the cavities 11 of the die casting tools 12 are completely filled with liquid casting material.
  • the actual casting process does not differ in this respect from the prior art, to which reference is made.
  • the casting piston 3 is moved at the conclusion of die casting to just above the junctions of the sprue 9 in the casting chamber 2 down.
  • the main slide 6 is opened, so that the casting chamber is opened downwards over the ejection opening 7 and the adjoining tube 8. Then, the casting piston 3 is moved beyond the junctions of the sprue 9 in the casting chamber 2 also down, whereby the pouring residue located below the casting piston 3 is sheared relative to the sprues located in the sprues 9 and pushed out through the discharge opening 7 from the casting chamber 2 and through the tube 8 falls down on a non-illustrated conveyor belt over which the casting residue is conveyed away.
  • the tool parts 13 and 14 are moved apart, which removes the workpiece formed in the cavity 11 together with the sprue thereon from the machine.
  • the machine is then removed from the in Fig. 4 position shown again in the Fig. 2 illustrated method by the casting piston 3 is moved upwards out of the casting chamber 2 and the sprue slide 10 and the main slide 6 are moved to their closed position. Then the machine is ready for another die casting process.

Abstract

Das Kaltkammerdruckgießverfahren ist für eine Kaltkammerdruckgießmaschine 1 mit vertikaler Gießkammer 2 vorgesehen, bei der nach Abschluss der Gießkammer 2 nach unten ein flüssiger Gießwerkstoff eingefüllt wird, welcher durch Einfahren eines Gießkolbens 3 über einen sich an die Gießkammer 2 anschließenden Angusskanal 9 in eine Kavität 11 einer Druckgießform 12 gepresst wird. Nach einer Abkühlzeit wird das Werkzeug 12 geöffnet und das Werkstück entfernt. Die Gießkammer 3 wird an ihrer Unterseite geöffnet und der Gießkolben 2 zum Entfernen des in der Gießkammer 2 befindlichen Gießrests durch die untere Öffnung 7 bis jenseits des Angusskanals 9 gefahrenThe cold chamber pressure casting method is provided for a cold chamber pressure casting machine 1 with a vertical casting chamber 2, in which, after the casting chamber 2 has been closed, a liquid casting material is poured in, which by moving a casting piston 3 into a cavity 11 of a pressure casting mold 9 via a sprue 9 connected to the casting chamber 2 12 is pressed. After a cooling time, the tool 12 is opened and the workpiece is removed. The bottom of the casting chamber 3 is opened and the casting piston 2 is moved through the lower opening 7 to beyond the sprue 9 to remove the casting residue located in the casting chamber 2

Description

Die Erfindung betrifft ein Kaltkammerdruckgießverfahren sowie eine Kaltkammerdruckgießmaschine mit den im Oberbegriff des Anspruchs 5 aufgeführten Merkmalen.The invention relates to a Kaltkammerdruckgießverfahren and a Kaltkammerdruckgießmaschine with the features listed in the preamble of claim 5.

Beim Kaltkammerdruckgießverfahren wird flüssiges Metall in eine Füllkammer bzw. Gießkammer dosiert, welches dann durch Kraftbeaufschlagung eines Presskolbens bzw. Gießkolbens unter hohem Druck in die Kavität einer Druckgießform gepresst wird, wo es nach Erkalten aus der Form entfernt und vom Anguss befreit wird. Dabei unterscheidet man beim Kaltkammerdruckgießen Maschinen mit horizontaler und solche mit vertikaler Anordnung der Gießkammer. Die vorliegende Erfindung betrifft ein Kaltkammerdruckgießverfahren sowie eine Kaltkammerdruckgießmaschine mit vertikaler Gießkammeranordnung.When Kaltkammerdruckgießverfahren liquid metal is metered into a filling chamber or casting chamber, which is then pressed by applying force of a plunger or casting piston under high pressure into the cavity of a die, where it is removed after cooling from the mold and released from the sprue. In cold-chamber die-casting, a distinction is made between machines with horizontal and those with vertical arrangement of the casting chamber. The present invention relates to a cold chamber die casting method and to a cold chamber die casting machine having a vertical casting chamber arrangement.

Eine solche Anordnung ist beispielsweise aus EP 3 053 672 A1 bekannt. Die dort beschriebene Kaltkammerdruckgießmaschine ist zum Druckgießen von Aluminiumteilen mit zentralem Anguss vorgesehen und weist zwei gegenüberliegend angeordnete Druckgießformen auf, welche jeweils einen Angusskanal haben, der quer nahe dem unteren Ende einer vertikalen Gießkammer mündet. Diese Gießkammer ist an der Unterseite durch einen Gegenkolben verschlossen, wobei der für den Gießvorgang aufzubringende Druck durch einen von oben kommenden Gießkolben aufgebracht wird. Der Gegenkolben dient einerseits zum Verschließen der Gießkammer nach unten und andererseits zum Abscheren und Auswerfen des in der Gießkammer befindlichen Gießrestes im Bereich der Mündung der Angusskanäle. Dabei befindet sich der Gegenkolben beim Befüllen der Gießkammer sowie beim eigentlichen Gießvorgang, bei welchem der Gießkolben kraftbeaufschlagt in die Gießkammer nach unten verfährt, zum Verschluss der Gießkammer unten. Sobald das Gießmaterial erstarrt ist, wird dann der Gegenkolben nach oben verfahren, um den in der Gießkammer befindlichen Gießrest im Bereich der Mündung der Angusskanäle abzuscheren und aus der Gießkammer zu entfernen.Such an arrangement is for example off EP 3 053 672 A1 known. The Kaltkammerdruckgießmaschine described therein is intended for die casting of aluminum parts with central sprue and has two oppositely arranged die casting molds, which each have a sprue, which opens transversely near the lower end of a vertical casting chamber. This casting chamber is closed at the bottom by an opposing piston, wherein the pressure to be applied for the casting process is applied by a casting piston coming from above. The counter-piston serves on the one hand for closing the casting chamber down and on the other hand for shearing and ejecting the located in the casting chamber Casting residue in the area of the mouth of the sprues. In this case, the counter-piston during filling of the casting chamber and the actual casting process, in which the casting piston kraftbeaufschlagt moves into the casting chamber down to the closure of the casting chamber below. As soon as the casting material has solidified, the counter-piston is then moved upwards in order to shear off the casting residue in the casting chamber in the region of the mouth of the runner channels and to remove it from the casting chamber.

Vor diesem Hintergrund liegt der anmeldungsgemäßen Erfindung die Aufgabe zugrunde, ein Kaltkammerdruckgießverfahren der vorgenannten Art zu verbessern und eine Kaltkammerdruckgießmaschine zu schaffen, mit welcher das erfindungsgemäße Kaltkammerdruckgießverfahren ausgeführt werden kann. Diese Maschine soll darüber hinaus in Aufbau und Funktion gegenüber bekannten Maschinen verbessert sein.Against this background, the invention according to the invention the object of improving a Kaltkammerdruckgießverfahren of the aforementioned type and to provide a Kaltkammerdruckgießmaschine with which the Kaltkammerdruckgießverfahren invention can be performed. This machine should also be improved in structure and function over known machines.

Der verfahrensmäßige Teil dieser Aufgabe wird durch ein Kaltkammerdruckgießverfahren mit den in Anspruch 1 angegebenen Merkmalen gelöst. Eine Kaltkammerdruckgießmaschine zur Ausführung dieses Verfahrens ist durch die in Anspruch 5 angegebenen Merkmale gekennzeichnet. Vorteilhafte Ausgestaltungen des Verfahrens und der Maschine sind in den Unteransprüchen, der nachfolgenden Beschreibung und der Zeichnung angegeben.The procedural part of this object is achieved by a Kaltkammerdruckgießverfahren with the features specified in claim 1. A cold chamber die casting machine for carrying out this method is characterized by the features specified in claim 5. Advantageous embodiments of the method and the machine are specified in the subclaims, the following description and the drawing.

Bei dem erfindungsgemäßen Kaltkammerdruckgießverfahren wird in eine unten verschlossene vertikale Gießkammer flüssiger Gießwerkstoff eingefüllt, welcher nachfolgend durch Einfahren eines Gießkolbens über mindestens einen sich an die Gießkammer anschließenden Angusskanal in mindestens eine Kavität mindestens einer Druckgießform gepresst wird, wobei das Werkstück nach einer Abkühlzeit aus der Druckgießform entfernt wird. Gemäß der Erfindung wird dann, typischerweise nach der Abkühlzeit oder auch schon davor die Gießkammer unten geöffnet und der Gießkolben zum Entfernen des in der Gießkammer befindlichen Gießrests bis jenseits des mindestens einen Angusskanals nach unten gefahren, sodass der Gießrest durch eine untere Öffnung der Gießkammer entfernt wird. Das erfindungsgemäße Verfahren und die erfindungsgemäße Maschine sind insbesondere zur Herstellung von Aluminiumteilen mit zentralem Anguss vorgesehen.In the case of the cold chamber die casting method according to the invention, liquid casting material is introduced into a bottom-closed vertical casting chamber, which is subsequently pressed into at least one die by inserting a casting piston via at least one casting channel adjoining the casting chamber, the workpiece being removed from the die after a cooling time becomes. According to the invention then, typically after the cooling time or even before the casting chamber opened down and the casting plunger for removing the casting residue located in the casting chamber down to beyond the at least one runner down, so that the casting residue is removed through a lower opening of the casting chamber. The inventive method and the machine according to the invention are intended in particular for the production of aluminum parts with a central sprue.

Grundgedanke des erfindungsgemäßen Verfahrens ist es somit, ein Entfernen des Gießrests, d. h. ein Abscheren des Gießrests von dem im Angusskanal erstarrten Material nicht durch einen Gegenkolben, sondern in Richtung nach unten durch den Gießkolben selbst zu entfernen. Dabei verfährt der Gießkolben gegenüber seiner Stellung am Ende des Druckgießvorgangs weiter nach unten, schert dabei den Anguss oder die Angüsse ab und presst den verbleibenden Gießrest durch die dann unten geöffnete Gießkammer aus dieser heraus. Dieses Verfahren hat den wesentlichen Vorteil, dass auf einen Gegenkolben und die damit verbundene Steuerung vollständig verzichtet werden kann. Darüber hinaus ergibt sich durch Verwendung des Gießkolbens eine im Vergleich zu dem sonst verwendeten Gegenkolben wesentlich höhere Abscherkraft, wodurch der Gießrest zuverlässig und sicher entfernt werden kann. Durch das Entfernen nach unten erfolgt der Vorgang schwerkraftunterstützt, dabei ist die Abfuhr des Gießrestes durch Herausfallen nach unten denkbar einfach, wenn dort ein entsprechendes Auffangbehältnis oder eine Abfördervorrichtung vorgesehen ist.The basic idea of the process according to the invention is therefore to remove the casting residue, ie. H. a shearing of the casting residue from the material solidified in the runner not by an opposing piston, but to be removed in the downward direction by the casting piston itself. In this case, the casting piston continues to move downwards relative to its position at the end of the die casting process, thereby shearing off the sprue or the sprues and pressing the remaining casting residue out of the casting chamber, which is then open at the bottom. This method has the significant advantage that it can be completely dispensed with an opposed piston and the associated control. In addition, results from the use of the casting piston in comparison to the otherwise used opposed piston much higher shearing force, whereby the casting residue can be removed reliably and safely. By removing the bottom of the process is gravity assisted, while the removal of the casting residue by falling down is conceivably easy if there is a corresponding collecting container or a discharge device is provided.

Vorteilhaft erfolgt das erfindungsgemäße Kaltkammerdruckgießverfahren gleichzeitig mit zwei Druckgießformen, die vorteilhaft um 180° versetzt Rücken an Rücken anliegend, die Gießkammer umgebend derart angeordnet sind, dass deren Angusskanäle gegenüberliegend in der Gießkammer münden, sodass diese gleichzeitig mit flüssigem Gießwerkstoff gefüllt werden können. Die Verwendung von zwei Druckgießformen hat sich dabei als besonders wirtschaftlich und konstruktiv günstig erwiesen.The Kaltkammerdruckgießverfahren invention advantageously takes place simultaneously with two die casting molds which advantageously offset by 180 ° back to back, surrounding the casting chamber are arranged such that their sprues opposite open in the casting chamber, so that they can be filled simultaneously with liquid casting material. The use of two die casting molds has proved to be particularly economical and structurally favorable.

Um die Kavität einer Gießform bzw. die Kavitäten von Gießformen bei Verwendung von zwei Gießformen definiert befüllen zu können, wird gemäß einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens der Angusskanal bzw. die Angusskanäle beim Befüllen der Gießkammer mit flüssigem Gießwerkstoff verschlossen gehalten. Dadurch wird sichergestellt, dass erst nach Druckaufbau in der Gießkammer die Angießkanäle geöffnet werden und damit der flüssige Gießwerkstoff unter Druck in die Druckgießform bzw. Druckgießformen eingepresst werden kann. Dabei ist gemäß der Erfindung vorgesehen, den Angusskanal bzw. die Angusskanäle erst dann zu öffnen, wenn der Gießkolben den flüssigen Gießwerkstoff druckbeaufschlagt hat oder gleichzeitig mit Druckaufbau.In order to be able to fill the cavity of a casting mold or the cavities of casting molds when using two casting molds, according to an advantageous development of the method according to the invention, the sprue channel or sprue passages are kept closed with liquid casting material when the casting chamber is filled. This ensures that only after pressure buildup in the casting chamber, the sprue channels are opened and thus the liquid casting material can be pressed under pressure into the die or die casting molds. It is provided according to the invention, the sprue or the sprue channels to open only when the casting piston has pressurized the liquid casting material or simultaneously with pressure build-up.

Die erfindungsgemäße Kaltkammerdruckgießmaschine, die insbesondere zur Ausführung des Kaltkammerdruckgießverfahrens gemäß der Erfindung vorgesehen und geeignet ist, weist mindestens eine Kavität in mindestens einer Druckgießform auf, welche über mindestens einen vorzugsweise quer an die Gießkammer anschließenden Angusskanal mit dieser verbunden ist. Es ist ein Gießkolben vorgesehen, welcher von oben in die vertikale Gießkammer einfährt und in dieser längs verfahrbar ist. Dabei ist gemäß der Erfindung die Gießkammer nach unten offen ausgebildet und jenseits des Anschlusses des mindestens einen Angusskanals mittels eines Schiebers verschließbar. Der Schieber ist also unterhalb der Mündung des oder der Angusskanäle in die Gießkammer angeordnet und dient dazu, die Gießkammer nach unten hin zu verschließen, wenn diese befüllt wird sowie wenn nachfolgend der Gießkolben heruntergefahren wird, um den flüssigen Gießwerkstoff durch den Angusskanal in die Kavität des Druckgießwerkzeuges zu pressen. Nach einer vorbestimmten Abkühlzeit wird dann dieser Schieber - nachfolgend als Hauptschieber bezeichnet -, geöffnet, sodass die Gießkammer nach unten hin offen ist, wonach der Gießkolben zum Abscheren des Angusses weiter nach unten verfahren wird, soweit, bis der Gießrest durch die untere Öffnung der Gießkammer herausfällt. Konstruktiv setzt dies also voraus, dass der Gießkolben bis über den Anschluss zum Angusskanal hinaus nach unten verfahrbar ist. Der wesentliche konstruktive Vorteil, der sich hierdurch ergibt, ist, dass auf den sonst üblichen Gegenkolben und die damit erforderliche Gegenkolbensteuerung vollständig verzichtet werden kann. Der zum Verschließen der Gießkammer vorgesehene Hauptschieber ist vorteilhaft quer zu der sonst zylindrischen Gießkammer angeordnet, kann somit vergleichsweise hohe Kräfte aufnehmen, die während des Druckgießens beim Herunterfahren des Gießkolbens entstehen. Da das Abscheren der Angüsse durch den Gießkolben selbst erfolgt, stehen hier vergleichsweise hohe Abscherkräfte zur Verfügung, welche eine sichere und zuverlässige Entfernung des Gießrestes aus der Gießkammer ermöglichen. Dabei ist das Entfernen des Gießrests schwerkraftunterstützt, dieser fällt bei geöffnetem Hauptschieber nach unten aus der Gießkammer heraus und ist dort entweder in einem Sammelbehältnis aufzufangen oder durch eine entsprechende Fördervorrichtung direkt einer Weiterverwendung zuzuführen.The cold chamber pressure casting machine according to the invention, which is provided and suitable in particular for carrying out the cold chamber pressure casting method according to the invention, has at least one cavity in at least one die which is connected to the latter via at least one sprue channel which is preferably transverse to the casting chamber. It is provided a casting piston, which enters from above into the vertical casting chamber and in this longitudinally movable. In this case, according to the invention, the casting chamber is designed to be open at the bottom and closable beyond the connection of the at least one sprue channel by means of a slide. The slider is thus located below the mouth of the runner or gates in the casting chamber and serves to close the casting chamber down when it is filled and when subsequently the casting piston is shut down to the liquid casting material through the runner into the cavity of Press die to press. After a predetermined cooling time then this slide - hereinafter referred to as the main spool -, opened, so that the casting chamber is open at the bottom, after which the casting piston is moved to shave the sprue down further, until the casting residue falls out through the lower opening of the casting chamber. In terms of design, this presupposes that the casting piston can be moved downwards beyond the connection to the sprue channel. The main structural advantage that results from this is that can be completely dispensed with the otherwise conventional piston and the counter piston control required therewith. The provided for closing the casting chamber main slide is advantageously arranged transversely to the otherwise cylindrical casting chamber, thus can absorb relatively high forces that arise during die casting when shutting down the casting piston. Since the shearing off of the sprues takes place by the casting piston itself, comparatively high shearing forces are available here, which enable a reliable and reliable removal of the casting residue from the casting chamber. In this case, the removal of the casting residue is gravity assisted, this falls out of the casting chamber with open main slide down and is either there to collect in a collection container or fed directly to a reuse by a corresponding conveyor.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist jeder Angusskanal mittels eines Schiebers absperrbar, ein solcher - nachfolgend Angussschieber genannter - Schieber ist vorteilhaft quer zum Kanal angeordnet und trennt den Kanal hinterschneidungsfrei über seinen ganzen Querschnitt. Dieser Angussschieber bzw. diese Angussschieber dienen dazu, beim Befüllen der Gießkammer diese gegenüber der Kavität bzw. den Kavitäten abzusperren, um den Befüllvorgang durch Öffnen des oder der Angussschieber gezielt steuern zu können, wenn der Druckaufbau durch den Gießkolben erfolgt ist.According to an advantageous embodiment of the invention, each runner is shut off by means of a slide, such - called gate follower - slide is advantageously arranged transversely to the channel and separates the channel without undercuts over its entire cross-section. This sprue gate valve or these sprue gate valves serve to shut off the casting chamber from the cavity or the cavities during filling of the casting chamber in order to be able to control the filling process by opening the gate valve or gates when the pressure buildup has taken place through the casting piston.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist die Gießkammer jenseits des Hauptschiebers aufgeweitet ausgebildet, um so eine Auswurföffnung zu bilden und ein Herausfallen des Gießrestes aus der Gießkammer zu ermöglichen.According to an advantageous embodiment of the invention, the casting chamber is formed widened beyond the main slide, so as to form an ejection opening and to allow falling out of the casting residue from the casting chamber.

Vorteilhaft sind die Schieber gemäß der Erfindung, insbesondere der Hauptschieber, so ausgebildet, dass sie in geöffneter Stellung den Gießkammerquerschnitt vollständig freigeben. Dies sollte auch im Bereich der Angusskanäle der Fall sein, dann nämlich kann der Anguss, der sich über den Bereich des geöffneten Schiebers erstreckt, ohne weiteres zusammen mit dem Werkstück gezogen und entfernt werden.Advantageously, the slide according to the invention, in particular the main slide, designed so that they completely release the Gießkammerquerschnitt in the open position. This should also be the case in the area of the sprue channels, because then the sprue, which extends over the area of the opened slide, can easily be pulled and removed together with the workpiece.

Die Schieber können gemäß der Erfindung als Längsschieber, d. h. mit linearer Verfahrrichtung typischerweise quer zu dem zu verschließenden Kanal oder als Drehschieber ausgebildet sein. Die Schieber können vorteilhaft als Rund- oder Flachschieber ausgebildet sein und typischerweise, jedoch nicht notwendigerweise, hydraulisch gesteuert sein.The slides can according to the invention as a longitudinal slide, d. H. be formed with a linear travel direction typically transverse to the channel to be closed or as a rotary valve. The slides can be advantageously designed as round or flat slide and typically, but not necessarily, hydraulically controlled.

Die erfindungsgemäße Kaltkammerdruckgießmaschine weist somit eine Gießkammer auf, die gegenkolbenfrei ist, dieser wird funktional durch den Hauptschieber einerseits und den von oben durchfahrenden Gießkolben ersetzt.The cold chamber die casting machine according to the invention thus has a casting chamber which is free of opposing pistons, this is functionally replaced by the main slide on the one hand and the casting piston passing through from above.

Vorteilhaft ist unter der Gießkammer eine Fördervorrichtung, insbesondere ein Förderband vorgesehen, mit welchem der nach unten ausgeworfene Gießrest abgefördert und einer Weiterverwendung zugeführt werden kann.Advantageously, a conveyor device, in particular a conveyor belt is provided under the casting chamber, with which the casting residue ejected downwards can be carried away and fed to a further use.

Die Erfindung ist nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
in stark vereinfachter schematischer Schnittdarstellung eine Kaltkammerdruckgießmaschine gemäß der Erfindung,
Fig. 2
in vergrößerter Darstellung die Gießkammer gemäß Fig. 1 in einer ersten Stellung,
Fig. 3
die Gießkammer in einer zweiten Stellung in Darstellung nach Fig. 2,
Fig. 4
die Gießkammer in einer dritten Stellung in Darstellung nach Fig. 2,
Fig. 5
in stark vergrößerter Darstellung den unteren Teil der Gießkammer im Bereich der Schieber in einer ersten Stellung entsprechend Fig. 2 und
Fig. 6
den unteren Teil der Gießkammer mit den Schiebern in Darstellung gemäß Fig. 5 in einer zweiten Stellung entsprechend Fig. 4.
The invention is explained in more detail with reference to an embodiment shown in the drawing. Show it:
Fig. 1
in a highly simplified schematic sectional view of a cold chamber die casting machine according to the invention,
Fig. 2
in an enlarged view of the casting chamber according to Fig. 1 in a first position,
Fig. 3
the casting chamber in a second position in illustration after Fig. 2 .
Fig. 4
the casting chamber in a third position in illustration after Fig. 2 .
Fig. 5
in a greatly enlarged view corresponding to the lower part of the casting chamber in the region of the slide in a first position Fig. 2 and
Fig. 6
the lower part of the casting chamber with the slides in representation according to Fig. 5 in a second position accordingly Fig. 4 ,

Die nachfolgend beschriebenen und anhand der Figuren 1 bis 6 dargestellte Kaltkammerdruckgießmaschine entspricht in ihrem grundsätzlichen Aufbau dem Stand der Technik und ist daher insoweit hier auch nicht beschrieben und dargestellt, sondern ausschließlich in den Bereichen, welche die vorliegende Erfindung betreffen und in denen sich die Maschine im ihrem Aufbau grundsätzlich vom Stand der Technik unterscheidet.The following described and based on the FIGS. 1 to 6 illustrated Kaltkammerdruckgießmaschine corresponds in its basic structure of the prior art and is therefore not described and illustrated here, but only in the areas which relate to the present invention and in which the machine basically differs in their structure from the prior art.

Die dargestellte Kaltkammerdruckgießmaschine 1 weist eine vertikal angeordnete zylindrische Gießkammer 2 auf, in der ein Gießkolben 3 verfahrbar ist. Der Gießkolben 3 ist mit einer Kolbenstange 4 eines Hydraulikzylinders 5 verbunden, der den Gießkolben 3 steuert.The illustrated Kaltkammerdruckgießmaschine 1 has a vertically arranged cylindrical casting chamber 2, in which a casting piston 3 is movable. The casting piston 3 is connected to a piston rod 4 of a hydraulic cylinder 5, which controls the casting piston 3.

Nach unten ist die Gießkammer 2 durch einen Hauptschieber 6 abschließbar, welcher eine zylindrische Form hat, die Gießkammer 2 vollständig und hinterschneidungsfrei durchsetzt und hydraulisch steuerbar ist. Unterhalb des Hauptschiebers 6 ist die Gießkammer 2 aufgeweitet zu einer Auswurföffnung 7 ausgebildet, an welche sich ein nach unten weiter aufgeweiteter Bereich 8 in Form eines Rohres anschließt.Down the casting chamber 2 can be locked by a main slide 6, which has a cylindrical shape, the casting chamber 2 passes completely and without undercuts and is hydraulically controllable. Below the main slide 6, the casting chamber 2 is widened to an ejection opening 7, to which a downwardly further expanded area 8 in the form of a tube connects.

Oberhalb des Hauptschiebers 6 münden quer und um 180° versetzt zueinander zwei Angusskanäle 9 in die Gießkammer 2. Die Angusskanäle 9 weisen jeweils nahe ihrer Einmündung in die Gießkammer 2 einen quer zum jeweiligen Kanal angeordneten und den Kanal vollständig und hinterschneidungsfrei durchsetzenden Angussschieber 10 auf, mit welchem der jeweilige Angusskanal 9 absperrbar ist. Die Angusskanäle selbst sind, wie bei solchen Maschinen üblich, zur Gießkammer 2 hin verjüngend ausgebildet und münden am anderen Ende jeweils in eine Kavität 11 eines Druckgießwerkzeuges 12, in welchem das Werkstück gebildet wird. Die Gießkammer 2 ist umgeben von den feststehenden Formteilen 13 des Druckgießwerkzeuges 12, die quasi Rücken an Rücken, also um 180° um die Mittellängsachse der Gießkammer 2 versetzt zueinander angeordnet sind. Abgeschlossen wird jedes Druckgießwerkzeug 12 von einem beweglichen Werkzeugteil 14, der wiederum im Maschinengestell abgestützt ist.Above the main slide 6 open transversely and 180 ° offset from each other two runners 9 in the casting chamber 2. The runners 9 each have near their junction in the casting chamber 2 arranged transversely to the respective channel and the channel completely and without undercuts passing through sprue slide 10, with which the respective sprue 9 is shut off. The sprue channels themselves are, as usual in such machines, tapered towards the casting chamber 2 and open at the other end in each case into a cavity 11 of a die casting tool 12, in which the workpiece is formed. The casting chamber 2 is surrounded by the fixed mold parts 13 of the die casting tool 12, which are quasi back to back, so offset by 180 ° about the central longitudinal axis of the casting chamber 2 to each other. Each die casting tool 12 is completed by a movable tool part 14, which in turn is supported in the machine frame.

Die Funktionsweise der erfindungsgemäßen Maschine ist anhand der Figuren 2 bis 4 dargestellt, wobei die Schieberstellung der Fig. 2 in Fig. 5 vergrößert und die der Fig. 4 in Fig. 6 vergrößert dargestellt sind. In der in Fig. 2 dargestellten Stellung ist der Gießkolben 3 vollständig aus der Gießkammer 2 nach oben herausgefahren, die beiden Angussschieber 10 und der Hauptschieber 6 sind geschlossen, verschließen also die Angusskanäle 9 bzw. die Gießkammer 2 über ihren gesamten Querschnitt. In dieser Stellung wird die dann oben offene Gießkammer 2 mit flüssigem Gießwerkstoff gefüllt, solange, bis die gewünschte Füllmenge eingefüllt ist. Dann wird der Gießkolben 3 bis auf die Oberfläche des flüssigen Werkstoffes von oben in die Gießkammer 2 abgesenkt. Sodann wird der Gießkolben 3 nach unten kraftbeaufschlagt und es werden die Angussschieber 10 geöffnet, wobei der Gießkolben 3 nach unten verfahren wird, bis die Kavitäten 11 der Druckgießwerkzeuge 12 vollständig mit flüssigem Gießmaterial gefüllt sind. Der eigentliche Gießvorgang unterscheidet sich insoweit nicht vom Stand der Technik, auf den insoweit verwiesen wird. Der Gießkolben 3 ist bei Abschluss des Druckgießverfahrens bis kurz oberhalb der Einmündungen der Angusskanäle 9 in die Gießkammer 2 nach unten verfahren.The operation of the machine according to the invention is based on FIGS. 2 to 4 shown, wherein the slide position of the Fig. 2 in Fig. 5 enlarged and the Fig. 4 in Fig. 6 are shown enlarged. In the in Fig. 2 shown position of the casting piston 3 is completely moved out of the casting chamber 2 upwards, the two gate valves 10 and the main slide 6 are closed, close that is, the sprue channels 9 or the casting chamber 2 over their entire cross section. In this position, the casting chamber 2, which is then open at the top, is filled with liquid casting material until the desired filling quantity has been filled. Then, the casting piston 3 is lowered down to the surface of the liquid material from above into the casting chamber 2. Then, the casting piston 3 is subjected to a downward force and the gate valves 10 are opened, wherein the casting piston 3 is moved downwards until the cavities 11 of the die casting tools 12 are completely filled with liquid casting material. The actual casting process does not differ in this respect from the prior art, to which reference is made. The casting piston 3 is moved at the conclusion of die casting to just above the junctions of the sprue 9 in the casting chamber 2 down.

Sobald eine vorbestimmte Zeit vergangen ist und der Gießwerkstoff eine vorbestimmte gewünschte Konsistenz erreicht hat, wird der Hauptschieber 6 geöffnet, sodass die Gießkammer nach unten hin über die Auswurföffnung 7 und das daran anschließende Rohr 8 geöffnet ist. Sodann wird der Gießkolben 3 über die Anschlussstellen der Angusskanäle 9 in der Gießkammer 2 hinaus nach unten verfahren, wodurch der unterhalb des Gießkolbens 3 befindliche Gießrest gegenüber dem in den Angusskanälen 9 befindlichen Angüssen abgeschert und durch die Auswurföffnung 7 aus der Gießkammer 2 herausgedrückt wird und durch das Rohr 8 nach unten auf ein nicht dargestelltes Förderband fällt, über welches der Gießrest abgefördert wird.As soon as a predetermined time has passed and the casting material has reached a predetermined desired consistency, the main slide 6 is opened, so that the casting chamber is opened downwards over the ejection opening 7 and the adjoining tube 8. Then, the casting piston 3 is moved beyond the junctions of the sprue 9 in the casting chamber 2 also down, whereby the pouring residue located below the casting piston 3 is sheared relative to the sprues located in the sprues 9 and pushed out through the discharge opening 7 from the casting chamber 2 and through the tube 8 falls down on a non-illustrated conveyor belt over which the casting residue is conveyed away.

Die Werkzeugteile 13 und 14 werden auseinandergefahren, das in der Kavität 11 gebildete Werkstück zusammen mit dem daran befindlichen Anguss aus der Maschine entfernt. Die Maschine wird dann aus der in Fig. 4 dargestellten Stellung wieder in die in Fig. 2 dargestellte verfahren, indem der Gießkolben 3 nach oben aus der Gießkammer 2 herausgefahren wird und die Angussschieber 10 sowie der Hauptschieber 6 in ihre geschlossene Stellung bewegt werden. Dann ist die Maschine bereit für einen weiteren Druckgussvorgang.The tool parts 13 and 14 are moved apart, which removes the workpiece formed in the cavity 11 together with the sprue thereon from the machine. The machine is then removed from the in Fig. 4 position shown again in the Fig. 2 illustrated method by the casting piston 3 is moved upwards out of the casting chamber 2 and the sprue slide 10 and the main slide 6 are moved to their closed position. Then the machine is ready for another die casting process.

Bezugszeichenreference numeral

11
Kaltkammerdruckgießmaschinecold chamber die casting
22
Gießkammercasting chamber
33
Gießkolbencasting plunger
44
Kolbenstangepiston rod
55
Hydraulikzylinderhydraulic cylinders
66
Hauptschiebermain slide
77
Auswurföffnungejection port
88th
Rohrpipe
99
Angusskanälerunners
1010
AngussschieberAngus slide
1111
Kavitätenwells
1212
Druckgießwerkzeugediecasting
1313
feststehender Teil eines Druckgießwerkzeugesfixed part of a die casting tool
1414
beweglicher Teil eines Druckgießwerkzeugesmovable part of a die casting tool

Claims (13)

Kaltkammerdruckgießverfahren, bei welchem in eine unten verschlossene vertikale Gießkammer (2) flüssiger Gießwerkstoff eingefüllt wird, welcher nachfolgend durch Einfahren eines Gießkolbens (3) über mindestens einen sich an die Gießkammer (2) anschließenden Angusskanal (9) in mindestens eine Kavität (11) mindestens einer Druckgießform (12) gepresst wird, wobei das Werkstück nach einer Abkühlzeit aus der Druckgießform (12) entfernt, die Gießkammer (2) unten geöffnet und der Gießkolben (3) zum Entfernen des in der Gießkammer (2) befindlichen Gießrests durch eine untere Öffnung (7) bis jenseits des mindestens einen Angusskanals (9) gefahren wird.Kaltkammerdruckgießverfahren in which in a closed bottom vertical casting chamber (2) liquid casting material is introduced, which subsequently by retraction of a casting piston (3) via at least one of the casting chamber (2) subsequent sprue (9) in at least one cavity (11) at least a die (12) is pressed with the workpiece removed after a cooling time from the die (12), the casting chamber (2) open at the bottom and the casting piston (3) for removing the pouring residue in the casting chamber (2) through a lower opening (7) is driven beyond the at least one runner (9). Kaltkammerdruckgießverfahren nach Anspruch 1, bei dem zwei Druckgießformen (12), die über gegenüberliegend anschließende Angusskanäle (9) mit der Gießkammer (2) verbunden sind, gleichzeitig mit flüssigem Gießwerkstoff befüllt werden.Kaltkammerdruckgießverfahren according to claim 1, wherein the two die casting molds (12), which are connected via opposite adjoining sprue channels (9) with the casting chamber (2), are filled simultaneously with liquid casting material. Kaltkammerdruckgießverfahren nach Anspruch 1 oder 2, bei dem der Angusskanal oder die Angusskanäle (9) beim Befüllen der Gießkammer (2) mit flüssigem Gießwerkstoff verschlossen gehalten werden.Kaltkammerdruckgießverfahren according to claim 1 or 2, wherein the runner or the sprue channels (9) during the filling of the casting chamber (2) are kept closed with liquid casting material. Kaltkammerdruckgießverfahren nach Anspruch 3, bei dem der Angusskanal oder die Angusskanäle (9) geöffnet werden, sobald der Gießkolben (3) den flüssigen Gießwerkstoff druckbeaufschlagt.Kaltkammerdruckgießverfahren according to claim 3, wherein the runner or the runners (9) are opened as soon as the casting piston (3) pressurizes the liquid casting material. Kaltkammerdruckgießmaschine, insbesondere zur Ausführung des Gießverfahrens nach einem der vorhergehenden Ansprüche, mit einer vertikal angeordneten Gießkammer (2), mit mindestens einer Kavität (11) mindestens einer Druckgießform (12), welche über mindestens einen an die Gießkammer (2) anschließenden Angusskanal (9) mit dieser kanalverbunden ist, und mit einem längs der Gießkammer (2) darin verfahrbaren Gießkolben (3), dadurch gekennzeichnet, dass die Gießkammer (2) nach unten offen und jenseits des Anschlusses des mindestens einen Angusskanals (9) mittels eines Schiebers (6) verschließbar ist.Cold chamber die casting machine, in particular for carrying out the casting method according to one of the preceding claims, with a vertically arranged casting chamber (2), with at least one Cavity (11) of at least one die (12), which is channel-connected to at least one sprue (9) adjoining the casting chamber (2), and a casting piston (3) movable along the casting chamber (2), characterized that the casting chamber (2) is downwardly open and closed on the other side of the terminal of at least one runner (9) by means of a slide (6). Kaltkammerdruckgießmaschine nach Anspruch 5, dadurch gekennzeichnet, dass jeder Angusskanal (9) mittels eines Schiebers (10) absperrbar ist.Kaltkammerdruckgießmaschine according to claim 5, characterized in that each runner (9) by means of a slide (10) can be shut off. Kaltkammerdruckgießmaschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass zwei Druckgießformen (12) vorgesehen sind, deren Angusskanäle (9) diametral gegenüberliegend in der Gießkammer (2) münden.Kaltkammerdruckgießmaschine according to claim 5 or 6, characterized in that two die casting molds (12) are provided, the sprue channels (9) open diametrically opposite in the casting chamber (2). Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Gießkammer (2) jenseits des Schiebers (6) als Auswurföffnung (7) aufgeweitet ausgebildet ist.Kaltkammerdruckgießmaschine according to any one of the preceding claims, characterized in that the casting chamber (2) on the other side of the slide (6) as an ejection opening (7) is widened. Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der oder die den Angusskanal (9) verschließenden Schieber (10) quer zum Kanal (9) verschiebbar sind.Kaltkammerdruckgießmaschine according to any one of the preceding claims, characterized in that the one or more of the runner (9) closing slide (10) transversely to the channel (9) are displaceable. Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schieber (6, 10) in geöffneter Stellung den Kanalquerschnitt/den Gießkammerquerschnitt vollständig freigeben.Cold chamber die casting machine according to one of the preceding claims, characterized in that the slides (6, 10) in open position the channel cross section / Gießkammerquerschnitt completely free. Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schieber (6, 10) als Rund- oder Flachschieber ausgebildet sind.Cold chamber die casting machine according to one of the preceding claims, characterized in that the slides (6, 10) are designed as round or flat slide. Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Gießkammer (2) gegenkolbenfrei ist.Kaltkammerdruckgießmaschine according to any one of the preceding claims, characterized in that the casting chamber (2) is opposite piston. Kaltkammerdruckgießmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass unter der Gießkammer (2) eine Fördervorrichtung, insbesondere ein Förderband vorgesehen ist.Kaltkammerdruckgießmaschine according to any one of the preceding claims, characterized in that below the casting chamber (2) a conveying device, in particular a conveyor belt is provided.
EP18151741.8A 2018-01-15 2018-01-15 Cold chamber pressure casting machine Active EP3511090B1 (en)

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HUE18151741A HUE061923T2 (en) 2018-01-15 2018-01-15 Cold chamber pressure casting machine
ES18151741T ES2836523T3 (en) 2018-01-15 2018-01-15 Cold Chamber Die Casting Machine
EP18151741.8A EP3511090B1 (en) 2018-01-15 2018-01-15 Cold chamber pressure casting machine
PL18151741T PL3511090T3 (en) 2018-01-15 2018-01-15 Cold chamber pressure casting machine

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EP18151741.8A EP3511090B1 (en) 2018-01-15 2018-01-15 Cold chamber pressure casting machine

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EP3511090B1 EP3511090B1 (en) 2020-10-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110947928A (en) * 2019-12-18 2020-04-03 宁波拓普集团股份有限公司 Casting die of vertical extruder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750697C (en) * 1938-07-05 1945-01-24 Process in compression molding machines with a compression piston and a counter piston closing the compression chamber
CH275204A (en) * 1948-10-01 1951-05-15 Hahn & Kolb Casting machine.
DE68913207T2 (en) * 1988-06-13 1994-08-18 Tour & Andersson Ab DEVICE AND METHOD FOR DIE CASTING.
EP3053672A1 (en) 2015-02-04 2016-08-10 Georg Fischer Druckguss GmbH Die casting of suspension struts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750697C (en) * 1938-07-05 1945-01-24 Process in compression molding machines with a compression piston and a counter piston closing the compression chamber
CH275204A (en) * 1948-10-01 1951-05-15 Hahn & Kolb Casting machine.
DE68913207T2 (en) * 1988-06-13 1994-08-18 Tour & Andersson Ab DEVICE AND METHOD FOR DIE CASTING.
EP3053672A1 (en) 2015-02-04 2016-08-10 Georg Fischer Druckguss GmbH Die casting of suspension struts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110947928A (en) * 2019-12-18 2020-04-03 宁波拓普集团股份有限公司 Casting die of vertical extruder

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HUE061923T2 (en) 2023-08-28
EP3511090B1 (en) 2020-10-28
ES2836523T3 (en) 2021-06-25
PL3511090T3 (en) 2021-07-26

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