CN1343539A

CN1343539A - Teeming machine

Info

Publication number: CN1343539A
Application number: CN 01121925
Authority: CN
Inventors: H·－J·凯默; K·－J·普弗伊菲尔; G·拉德尔
Original assignee: ALD Vacuum Technologies GmbH
Current assignee: ALD Vacuum Technologies GmbH
Priority date: 2000-06-20
Filing date: 2001-06-20
Publication date: 2002-04-10
Also published as: DE10030225C1; EP1166919A1

Abstract

Casting machine for casting metals has a sealed casting chamber, in which liquid metal is poured into a mold via a drain of the casting chamber. Several molds are arranged in the casting chamber on planar bearing surfaces of a casting wheel rotating about a horizontal axis. The casting wheel forms a polygon having a regular cross-section whose casing surface is formed by the bearing surfaces. After a matal model is finished, the cast wheel continues ratating bout the position, the following metal model reaches to the drain for concreting and falls into a collecting container is arranged on wheels below the casting wheel.

Description

Casting machine

The present invention relates to the casting machine of cast metal, this casting machine has the casting chamber of a sealing, in the metal mold that can cast by an outlet liquid metal in the casting chamber below being arranged on outlet.

This casting machine for example is used for casting rare element ferroalloy light casting in protective gas or vacuum.The storage container that this foundry goods is particularly useful for making high-power magnet or is used for hydrogen.For the casting machine of this form importantly, liquation solidifies in each metal mold very fast, to obtain crystalline structure.For this reason liquation from vaccum sensitive stove through spout guide to casting machine and there the casting in flat metal mold, metal mold is fixed on the bearing-surface of water-cooled.After solidifying for example the light casting sheet of 10 to 25 millimeters thick topple over out in the metal mold and pour in the foundry goods collection container.

Because the demand to this casting machine cast alloys acutely increases recently, therefore there is the necessity that improves casting machine production efficiency.In casting machine, adopted so-called laminated casting mold (Book-mold) for this reason.Relate to a sole plate metal casting mold of forming by the several piece cooled plate at this.Be that the dismounting of this sole plate metal casting mold and assembling are very time-consuming in this shortcoming.

The common fault of the metal mold of the adjacent setting of several piece is that violent increase and casting machine that the work area of this casting machine is disobeyed people's wish structurally are complicated.

Task of the present invention is to improve the casting machine of above-mentioned form, makes it have high as far as possible casting efficient, and this being need not disobey people's wish ground increases the work area of casting machine, and can realize the rapid solidification of liquation.

This task solves therefrom according to the present invention, in the casting chamber a plurality of metal molds be arranged on can around horizontal rotational shaft, on the cross section on the flat bearing-surface of outer surface of regular polygonal casting wheel.

A plurality of metal molds can be contained in the crawl space by this casting wheel, because only need be positioned at last metal mold horizontal aligument below the outlet.If casting wheel rotates with the beat of a metal mold, make next metal mold arrive below the outlet, be positioned at obliquity and cast full metal mold, the foundry goods that solidifies can continue cooling in this position, foundry goods arrives a steeply inclined position by next the rotation then, and its steep degree makes the foundry goods can be by falling in the metal mold.Therefore the cooling of foundry goods in metal mold do not have the casting of the next foundry goods of interest for delinquency.Because casting wheel has flat bearing-surface, therefore can be equipped with for example water cooling, make each metal mold expensively just can realize required rapid solidification with the good cooling of simple mode and for what some metal need not expected.It is full that each metal mold can successively be cast, and method is that casting wheel is positioned at static during the metal mold casting on each and enters next beat fast after last metal mold casting is full, next metal mold arrived cast to flow down face.Another advantage of casting wheel is that each metal mold can be independent of other metal mold and change for casting wheel, and maintenance can be carried out fast.

Being one according to another structure casting of the present invention chamber can be connected to the vacuum chamber of melting furnace and outlet is configured in and can be guided to by gate valve on the spout of melting furnace by the casting chamber by gate valve, makes liquation guide to casting machine with simple method by the melting furnace under vacuum or the protective gas.

If the foundry goods collection container is arranged on this side below the casting wheel, promptly when casting wheel rotates metal mold above casting wheel towards the motion this side, the foundry goods of then having cast and leave metal mold can at first be collected and periodically sail out of casting machine then.

As long as foundry goods also has temperature, just may react, so foundry goods must remain under the protective gas or in the vacuum with atmosphere.If foundry goods collection container surface thereon removably is connected with the casting chamber by configuration gate valve formation thereon, just can guarantee this point with simple method.This embodiment can use a plurality of foundry goods collection containers, makes the casting machine can be by connecting foundry goods collection container work thereon, and another foundry goods collection container foundry goods also continue cooling or by collection container in take out foundry goods.

The foundry goods collection container is loaded onto the wheel that can sail out of the casting chamber, makes foundry goods sail to extracting position like a cork by the foundry goods collection container.

The casting chamber by top, fixing casting chamber component that has the metal liquid stream chamber and bottom, casting chamber component that can travel, that have casting wheel constitutes, and the M R of casting machine can be carried out especially easily.Can make casting wheel move to one thus and leave the keeping position of casting machine and melting furnace and can be like a cork near casting wheel in this position.

According to another program of the present invention, the fixing casting chamber component and the chamber component of movably casting with mobile status close to each other by leaning of sealing mutually of the face that leans of rise from bottom to top on the chamber component moving direction of movably casting, make movably cast chamber component with can not glide before fixing casting chamber component separates, make the chamber component of movably casting have enough horizontal mobilitys on the contrary.

From the direction of rotation of casting wheel the casting guide block is set respectively between each metal mold, the casting guide block with the casting that produced position guiding one or another metal mold every the neighbour according to casting wheel, and can continue the rotation of beat ground when liquation stream casting wheel when outlet flows to metal mold and irritates casting between metal mold.

The present invention allows many embodiment.In order to show that further basic principle of the present invention also then is described from the embodiment that wherein draws.Be illustrated as

The front view of Fig. 1 casting equipment has melting furnace and according to casting machine of the present invention,

The side view of Fig. 2 Fig. 1 device,

The partial section of Fig. 3 casting machine casting wheel.

Fig. 1 melting furnace 1 that vaccum sensitive stove by VIDP version constitutes that drawn, melting furnace has a melting pan 2, and metal melts by induction in melting pan.The casting machine 3 that has the casting chamber 4 of double-walled water-cooled and sealing laterally is positioned at the next door of melting furnace 1, and the casting chamber is connected with melting furnace 1 with gate valve 6 by liquid stream chamber 5.In liquid stream 5 inside, chamber spout 7 is set, spout one end advances melting furnace 1 and has outlet 8 at the other end by gate valve 6 projections.Spout 7 draws with dotted line in the installation site in addition, is positioned at liquid stream 5 inside, chamber at this position spout, but is positioned at melting furnace 1 outside.

A casting wheel 9 is set on casting machine 3 below outlet 8, and casting wheel can be around the rotation of axis 16 step-by-step movements by rotating driving device 10.This casting wheel 9 is exemplified as anistree cross section and therefore constitutes 8 flat bearing-surfaces 11 for drawn, and metal mold 12 shown in Figure 3 is separately fixed on the bearing-surface.

Foundry goods collection container 13 is set below casting wheel 9, and the foundry goods collection container has gate valve 14 in the above, and by this gate valve, the foundry goods collection container is connected with casting chamber 4.Foundry goods collection container 13 has wheel 15, and wheel can be realized foundry goods collection container 13 is sailed out of to extracting position from casting chamber 4.

Fig. 2 shows that casting wheel 9 is the anistree shape of rule, makes it have eight bearing-surfaces 11 altogether on cross section.Fig. 2 represents in addition, and casting chamber 4 is made of top, fixing the casting chamber component 17 and the chamber component 18 of movably casting.These casting chamber components 17,18 contact hermetically by the face that leans 19,20 that tilts.The chamber component 18 of movably casting has the wheel 21 and the keeping position that moves right as shown in Figure 2 thus, can freely touch casting wheel 9 in this position.

Fig. 3 has drawn and can center on the partial enlarged drawing of the casting wheel 9 of axis 16 rotations.Bearing-surface 11 is positioned in the there.Interrupt cooling duct 22 that this bearing-surface 11 is upwards opened, that be made of groove, can through-flow cooling water in the cooling duct.Each metal mold 12 upwards covers these cooling ducts 22, and the sealing 23 that wherein seals by being arranged on the bearing-surface 11 realizes.Each metal mold 12,12 ' between the space respectively by one the casting guide pad 24 be full of, the casting guide pad has liquid separator 25, when casting wheel 9 when axle 16 rotates, make liquation stream at first flow to metal mold 12 and flow to after by liquid separator 25 next metal mold 12 '.

In Fig. 3 on metal mold 12 the letter outlet 8 that draws.During liquation flow to metal mold 12 by outlet, casting wheel 9 was in the diagram resting position.When metal mold 12 castings were full, casting wheel 9 for rotating 45 °, need not fluid stopping at this outlet 8 in the present embodiment with beat rotation as quickly as possible.Be rotated further by this, metal mold 12 ' arrival outlet 8 following also castings thus expire, and metal mold 12 is positioned at 45 ° of obliquities.Metal mold 12 arrives the upright position when the next one rotates beat, makes the foundry goods that is set in wherein drop into foundry goods collection container 13 the insides shown in Fig. 1 and 2 downwards from the metal mold the inside.

When melting pan shown in Figure 12 is emptied completely, spout 7 is moved on to the position shown in Fig. 1 dotted line also melting furnace 1 and casting machine 3 are separated, so that in melting furnace, can begin new fusion process by gate valve 6.

Claims

1. the casting machine that is used for the cast metal, casting chamber with a sealing, in the metal mold that can cast by the outlet liquid metal in the casting chamber below being arranged on outlet, it is characterized by, be arranged on the flat bearing-surface (11) that can center on casting wheel (9) outer surface trunnion axis (16) rotation, that at cross section be regular cerioid formation at the casting a plurality of metal molds in lining, chamber (4) (12).

2. casting machine as claimed in claim 1, it is characterized by, casting chamber (4) is a vacuum chamber that can be connected to melting furnace (1) by a gate valve (6), and outlet (8) is configured in and can be guided on the molten metal chute (7) of melting furnace (1) by gate valve (6) by casting chamber (4).

3. as the casting machine of claim 1 or 2, it is characterized by, foundry goods collection container (13) is arranged on this side below the casting wheel (9), promptly when casting wheel (9) rotates metal mold (12) from the upper surface of casting wheel towards this side of moving.

4. casting machine as claimed in claim 3 is characterized by, and foundry goods collection container (13) surface thereon constitutes, by be configured on the collection container gate valve (14) removably be connected with casting chamber (4).

5. casting machine as claimed in claim 4 is characterized by, and foundry goods collection container (13) can sail out of from casting chamber (4) by wheel (15).

6. as above-mentioned claim casting machine one of at least, it is characterized by, casting chamber (4) by casting chamber component (17) top, fixing, that have a metal liquid stream chamber (5) and bottom, movably, have casting chamber component (a 18) formation of casting wheel (9).

7. casting machine as claimed in claim 6, it is characterized by, the fixing casting chamber component (17) and the chamber component (18) of movably casting lean by the face that leans (19,20) that rises from bottom to top on the chamber component of movably casting (18) moving direction mutually hermetically with mobile status close to each other.

8. as above-mentioned claim casting machine one of at least, it is characterized by, from the direction of rotation of casting wheel (9) at each metal mold (12,12 ') between be provided with respectively the casting guide block (24), this casting guide block is at metal mold (12,12 ') between with the casting that produced position guiding one or another metal mold (12,12 ') every the neighbour according to casting wheel (9).