RU83202U1 - DEVICE FOR CASTING OF SHAPED PRODUCTS - Google Patents

Abstract

1. Device (1) for molding a molded product (2), containing a receiving tank (3) for molten material, from which a predetermined volume of molten material flows through a drain hole (4) into the chill mold (5), and the device contains a displacing body (6 ), characterized in that the displacing body (6) is movable for immersion in the molten material located in the receiving tank and forcing the molten metal through the drain hole (4) into the chill mold, while above the molten material in the receiving ezervuare (3) is arranged a sensor element (8) for measuring the level of molten material in the receiving tank (3). ! 2. The device according to claim 1, characterized in that the displacing body (6) is made in the form of a punch, moved by means of a lifting mechanism (7) in the vertical direction (V). ! 3. The device according to claim 1, characterized in that under the receiving tank (3) there are scales (9) for measuring the mass of the receiving tank (3) together with the material in it. ! 4. The device according to claim 1, characterized in that under the chill mold (5) there are scales (10) for measuring the mass of the chill mold (5) together with the material poured into it. ! 5. The device according to claim 1, characterized in that the chill mold (5) is intended for casting, basically, a flat shaped product (2), in particular a plate. ! 6. The device according to claim 1, characterized in that it contains a control or regulation device (11) that drives the lifting mechanism (7) so that the displacement body (6) moves to displace a predetermined volume of molten material into the chill mold (5) . ! 7. The device according to claim 6, characterized in that the device (11) control or regulation

Description

2420-151250RU / 22

DEVICE FOR CASTING OF SHAPED PRODUCTS

Description

The solution relates to a device for molding a molded product containing a receiving tank for molten material, from which a predetermined volume of molten material can be poured through the drain hole into the chill mold.

Foundry devices of this kind are known, for example, as foundry carousels used in the manufacture of anode plates. The chill molds used in them have a cavity corresponding to the shape of the cast anode. A certain number of chill molds are arranged in a circular path around a receiving tank, which contains molten metal.

A known embodiment of such a casting device is shown in FIG. 1-3. In FIG. 1 shows a foundry device 1 in perspective; FIG. 2 is a cross-sectional view of the casting device before casting, and FIG. 3 - corresponding to FIG. 2 view after casting a shaped product 2.

The receiving tank 3 is mounted on the supporting element 13, the upper part 14 of which is made with the possibility of tilt, as can be seen from the comparison of FIG. 2 and 3. Before the casting process (Fig. 2), the molten material 15 is poured into the receiving tank 3 to a certain level. When the receiving tank 3 is tilted, molten material flows through the drain hole 4 from the receiving tank 3 and is poured into the chill cavity 5 in which the shaped article 2 is made. After pouring, there is still a small residual volume in the receiving tank

molten material 15. After turning the receiving tank back to the position shown in FIG. 2, a new portion of molten metal is poured into it, for which a device not shown is used.

After cooling the chill mold or after solidification of the material in it, the molded shaped product can be removed from the chill mold.

The problem with the described method of casting a molded product is that it is difficult to achieve high constancy of the melt volume poured into the chill mold, and this is a prerequisite that the molded products are within the specified mass tolerance.

True, due to the especially slow pouring of the melt into the chill mold, it is possible to control the molten volume poured into it relatively accurately in accordance with a given value; however, these actions reduce the efficiency of the method; since they require a relatively long cycle time, which makes the method unprofitable.

Another well-known solution is disclosed in SU 607645 A, 05/25/1978 a device for molding a molded product containing a receiving tank for molten material, from which a predetermined volume of molten material flows through a drain hole into the chill mold, and the device contains a displacing body.

This device has a complex structure due to the need to seal individual parts of the device, and in addition does not allow for precise control of the amount of material entering through the drain hole in the chill mold.

The basis of the solution is the task of improving the device of the kind of casting described above to overcome these drawbacks, that is, to achieve high accuracy of the mass of molded shaped products, and at the same time a short cycle time can be achieved. The performance of the device must therefore be high; The tact time for the manufacture of the shaped product should be minimized.

The solution to this problem, is characterized in relation to the device by the presence of a displacing body, which is made with the possibility of movement for immersion in the molten material located in the receiving tank for its displacement through the drain hole in the chill mold.

This concept is aimed at ensuring that the volume required for casting a molded product is not chilled due to the inclination of the receiving tank, but that the melt volume is poured out by means of a displacing body immersed in the melt in the receiving tank.

Due to the immersion of the displacing body, the melt oscillations in the vessel are eliminated and the material is uniformly fed into the chill mold.

The first embodiment provides that the displacing body is made in the form of a punch that can be moved by a lifting mechanism in the vertical direction.

To automate the process and to achieve the highest possible reproducibility of the casting process, according to another embodiment, it is provided that over the molten

A sensor element is located in the receiving tank with the material, which can be used to measure the level of molten material in the receiving tank.

Further in the receiving tank can be located scales, with which you can measure the mass of the receiving tank together with the molten material in it. Thus, it is possible to determine what mass of the melt was poured from the casting device, and it is possible to judge the mass of the molded shaped product.

Alternatively or additionally, an arrangement can be provided under the chill scale, with which you can measure the mass of the chill mold together with the molten material poured into it. It also allows you to determine the mass of the melt, which was poured into the chill mold for the manufacture of shaped products.

Preferably, the chill mold is made for casting a substantially flat shaped article, in particular a plate.

To automate and maintain high accuracy, it is further provided that a control or regulation device is provided that drives the lifting mechanism so that the displacing body moves with the possibility of displacing a predetermined volume of molten material into the chill mold. In this case, it is preferably provided that the control or regulation device is connected with a sensor element for measuring the level of molten material in the receiving tank or with a scale for measuring the mass of the receiving tank together with molten material or with a scale for measuring the mass of the mold together with the material filled into it.

A good dosage of the melt displaced from the receiving tank is facilitated by the fact that, according to one improvement, it is provided that the receiving tank has a groove in the immersion zone of the displacing body.

As is known for such installations, in order to increase profitability, it can be provided that a certain number of chill molds are located along a circular path around the receiving tank; due to this, a foundry carousel is formed.

A method of casting a shaped article using such a device, in which a predetermined volume of molten material is poured through a drain hole into a chill mold for casting a shaped article, characterized in that for discharging a predetermined volume of molten material into the molten material in the receiving reservoir, the displacing body is immersed for displacing molten material through a drain hole in the chill mold.

The movement of the immersion of the displacing body can occur in a controlled or adjustable manner in accordance with a predetermined stroke of the displacing body in the vertical direction.

It may also be provided that the movement of immersion of the displacing body occurs in a controlled or adjustable manner depending on the level of molten material measured in the receiving tank.

Further, the movement of the immersion of the displacing body can occur in a controlled or regulated manner depending on the measured mass of the receiving tank together with the molten

material. Accordingly, another possibility also lies in the fact that the movement of immersion of the displacing body occurs in a controlled or adjustable manner depending on the measured mass of the chill mold together with molten material poured into it.

All variants of the method provide that the receiving tank during pouring of the molten material into the chill mold is held motionless. This means that the receiving tank is not moving, namely that there is no tilt for pouring.

Using the proposed device, accurate dosing of the melt volume poured from the receiving tank into the chill mold is achieved. The molded shaped products therefore have a high mass consistency.

Further, the pouring process can be carried out relatively quickly, without adversely affecting the reproducibility of the method. Thus, the tact time for manufacturing a shaped article can be kept low.

Using the proposed combination of a device with a sensor system for monitoring the melt level in the receiving tank or mass determination, it is possible to determine inaccuracies or deviations during operation due to sintering or wear, and compensate them in the control mode, that is, automatically correct them.

The proposal is particularly suitable for casting anodes, which, therefore, can be made very efficiently.

In the drawing, in addition to the known solution, an embodiment is shown. The drawing shows:

- figure 1: in the future, the device for casting the anode in accordance with the prior art;

- figure 2: side view of the casting device of figure 1 in a section before casting;

- figure 3: corresponding to figure 2 view after casting the anode;

- figure 4: in the future, the device for casting the anode, according to this decision;

- figure 5: top view of the device of figure 4;

- Fig.6: side view of the casting device of Fig.4 in section along the line aa in Fig.5 after casting;

- Fig.7: corresponding to Fig.6 is a view of the device at the end of the casting process.

Figure 4-7 shows a device 1 for casting, used for the manufacture of shaped products 2 in the form of an anode plate. Visible chill 5, in which liquid metal is poured. Although only one chill mold 5 is visible, in most cases a certain number of chill molds are arranged around the circumference around the receiving tank 3, and this arrangement forms a casting carousel. The advantage of such a carousel is that there is enough time left for cooling and solidifying the metal poured into the chill 5, as well as to extract the finished anode plate, until the chill 5 is used to make the next plate.

The receiving tank 3 is mounted on a supporting element 13, which holds the receiving tank 3 motionless without the possibility of tipping over. The receiving tank 3 is filled with a molten metal from a tank with its supply (not shown). The melt 15 has before casting shaped products 2 shown on

Fig.6 level in the receiving tank 3. It is located here, mainly in the grooved recess 12, the contour of which is visible in Fig.4-7.

The shaped article 2 is cast due to the fact that a certain volume of molten material 15 from the receiving tank 3 is poured into the chill mold 5 through the drain hole 4. This occurs in this case as follows.

Above the receiving tank 3 there is a displacing body 6 in the form of a punch. The displacing surface of the body 6 is visible in figure 5. The displacing body 6 is configured to move in the vertical direction V by means of a lifting mechanism 7 (Fig.6). It can be immersed in the molten material 15 in the receiving tank 3, in particular, to a predetermined depth relative to the receiving tank 3.

Immersed body 6 immersed in the molten material 15 is shown in FIG. 7 in a position in which the molding process of the shaped article is completed. Due to the lowering of the displacing body 6 to the position shown in FIG. 7, so much melt 15 is poured out of the drain hole 4 through the overflow edge 16 into the chill mold 5 that exactly the desired volume is enclosed in the chill mold 5. Since the receiving tank 3 is at rest during immersion of the displacing body 6, the melt does not spill. Due to this, the amount or volume of the poured metal lies within a narrow tolerance; the reproducibility of individual casting processes is high.

Automatic and reliable casting is achieved as follows.

Above the molten material 15 in the receiving tank 3 there is a sensor element 8, which can determine the level of the melt in the receiving tank 3. As follows from a comparison of FIGS. 5 and 6, one can thereby determine the required lowering course of the displacing body 6 so that, knowing the geometry the receiving tank 3 and the displacing body 6, determine the amount or volume of material poured into the chill mold 5. The melt 15 flows out into the chill mold 5 until the melt level in the receiving tank 3 is higher than the overflow edge 16. Knowing the height of this edge and the measured level before immersion of the displacing body 6 (Fig. 6), it is possible to determine exactly what size the displacing body is 6 should sink into the melt 15 to allow the desired volume of melt to flow out.

The control or regulation device 11 is accordingly programmed so that it is turned on so that, based on the signal of the sensor element 8 supplied to it, respectively control the lifting mechanism 7 or adjust it so that the desired amount of melt flows out into the chill mold 5.

As an addition or alternative, this principle can be appropriately supplemented or replaced by the fact that by means of weighing the quantity of the melt poured into the chill mold is determined.

6 only schematically shows the scales 9, which are located under the receiving tank 3 and which are able to determine the mass of the receiving tank 3 together with the melt 15. Measured by the scales 9, the value can be sent to the control or regulation device 11, which through the lifting mechanism 7 lowers the displacing body 6 so far

that the desired amount of melt 15 is poured from the receiving tank 3 into the chill mold 5. In this case, however, one should take into account the force exerted by the displacing body 6 in the vertical direction on the receiving tank 3 and, thus, on the balance 9. The corresponding physical principles are well known from statics liquids.

Another alternative or additional possibility consists in placing under the chill mold 5 weights 10 and registering with their help the mass of the melt 15 already poured into the chill mold 5. Also, the balance 10 can be connected to the control or regulation device 11 with the possibility of its corresponding action on the lifting mechanism 7.

Using the proposed device and the explained method, it is possible to manufacture, in particular, anode plates in a very efficient manner. High consistency of the casting mass can be achieved, that is, the reproducibility of individual casting cycles is high.

Since the melt in the receiving tank 3 during pouring does not fluctuate or fluctuates only slightly, you can further implement the method quickly, with the result that the cycle time or cycle time is kept short. This makes the method very cost effective.

List of Reference Items

1 - casting device

2 - shaped product

3 - receiving tank

4 - drain hole

5 - chill mold

6 - displacement body

7 - lifting mechanism

8 - touch element

9 - scales

10 - scales

11 - control device or regulation

12 - grooved groove

13 - bearing element

14 - upper part

15 - molten material

16 - overflow edge

V - vertical direction

Claims (9)

1. Device (1) for molding a molded product (2), containing a receiving tank (3) for molten material, from which a predetermined volume of molten material flows through a drain hole (4) into the chill mold (5), and the device contains a displacing body (6 ), characterized in that the displacing body (6) is movable for immersion in the molten material located in the receiving tank and forcing the molten metal through the drain hole (4) into the chill mold, while above the molten material in the receiving ezervuare (3) is arranged a sensor element (8) for measuring the level of molten material in the receiving tank (3). 2. The device according to claim 1, characterized in that the displacing body (6) is made in the form of a punch, moved by means of a lifting mechanism (7) in the vertical direction (V). 3. The device according to claim 1, characterized in that under the receiving tank (3) there are scales (9) for measuring the mass of the receiving tank (3) together with the material in it. 4. The device according to claim 1, characterized in that under the chill mold (5) there are scales (10) for measuring the mass of the chill mold (5) together with the material poured into it. 5. The device according to claim 1, characterized in that the chill mold (5) is intended for casting, basically, a flat shaped product (2), in particular a plate. 6. The device according to claim 1, characterized in that it contains a control or regulation device (11) that drives the lifting mechanism (7) so that the displacement body (6) moves to displace a predetermined volume of molten material into the chill mold (5) . 7. The device according to claim 6, characterized in that the control or regulation device (11) is connected with a sensor element (8) for measuring the level of molten material in the receiving tank (3) and / or with weights (9) for measuring the mass of the receiving tank (3) together with molten material and / or weights (10) for measuring the mass of the chill mold (5) together with the material poured into it. 8. The device according to claim 1, characterized in that the receiving tank (3) has a grooved recess (12) in the immersion zone of the displacing body (6). 9. The device according to claim 1, characterized in that along a circular path around the receiving tank (3) there are a number of chill molds (5).