JP2009039752A - Casting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a casting apparatus which is manufactured relatively compactly at low cost, and capable of reliably releasing an ingot of aluminum cast for each of a plurality of molds from the molds. <P>SOLUTION: The casting apparatus 1 continuously casts molten metal m of aluminum or an aluminum alloy into ingots, and includes a rotary shaft 2 with its axial direction being vertical, a disk-like rotating body 4 which is located around the rotary shaft 2 and rotated together with the rotary shaft 2, a plurality of molds c penetrating between an upper surface 5 and a lower surface 6 of the rotating body 4, a water cooling means 20 including a water cooling tank 21 to cover a range from a vicinity of the rotary shaft 2 to an outer circumferential side thereof out of the lower surface 6 of the rotating body 4 and a part of the circumferential direction on the lower surface 6, and a molten metal pouring means 26 which is arranged above the rotating body 4 to pour the molten metal m into the molds c. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a casting apparatus for continuously casting a molten aluminum or aluminum alloy into an ingot (ingot) of a predetermined size, and particularly to a casting apparatus suitable for casting a small ingot having a weight of 1 kg or less.

For example, in order to continuously cast a large number of ingots used for die casting of aluminum or the like and carry out the cooling of the large number of ingots obtained, an ingot production line as described below has been proposed (for example, , See Patent Document 1).
Such an ingot production line includes a molding conveyor in which a number of substantially box-shaped molds are connected in an endless manner, a delivery conveyor arranged along the lower side of the molding conveyor, and a lower part of the delivery conveyor. A cooling conveyor passing through the cooling water tank.
Japanese Utility Model Publication No. 5-39738 (pages 1 to 11 and FIGS. 1 to 6)

  And in order to reliably deliver a large number of ingots sequentially cast into individual molds in the molding conveyor, the back surface of the mold, which is in a downward opening posture, is placed with a hammer to forcibly be placed on the delivery conveyor. The ingot holding member attached to the end portion of the conveyor and a plurality of rollers arranged adjacent to the ingot holding member are reversed upside down so that a large number of ingots are engaged with the cooling conveyor. It is handed over to the pawl sequentially. The ingot delivered onto the locking claws of the cooling conveyor is cooled to a temperature near room temperature when the conveyor passes through the cooling water tank.

  However, since the ingot production line disclosed in Patent Document 1 includes a forming conveyor, a delivery conveyor, and a cooling conveyor that partially passes through the cooling water tank, the facility itself is large and complicated, and is wide. Requires space. Further, the hammer that contacts the back surface of the mold, an ingot holding member attached to an end of the delivery conveyor, a plurality of the rollers arranged adjacent to the holding member and obliquely above the cooling conveyor, and the plurality of rollers A hydraulic cylinder or the like that changes the posture is also necessary. For this reason, the equipment cost is high, and it is unavoidable to perform an operation associated with a complicated operation, and a large amount of maintenance is required. Moreover, there is a problem that the working environment is deteriorated due to the noise generated by the hammer.

On the other hand, an automated continuous casting machine has also been proposed which is capable of continuously casting a large number of small and simple metal ingots (for example, see Patent Document 2).
In such a continuous casting machine, a plurality of molds are pivotally supported through hinges along the outer periphery of a horizontally rotating circular substrate, and a wheel that supports the molds from below is rotated along the upper surface of a cylindrical cam. When a mold having a metal lump that has been poured and solidified in each mold passes through a low position provided in a part of the cylindrical cam, the mold is directed outward with the hinge as a rotation center. The metal lump is released to the outside by rotating it.
However, the continuous casting machine also requires the substrate, a cylindrical cam, a plurality of molds that are hinged and have wheels, a pouring funnel for pouring molten metal into the mold, etc., and has a complicated structure. There is a problem that the apparatus becomes large in size, the equipment cost increases, it is easy to break down, and maintenance is likely to be prosperous.
JP-A-53-54126 (pages 1 to 3, FIGS. 1 to 4)

  The present invention solves the problems described in the background art, is relatively compact and can be manufactured at a low cost, and ingots such as aluminum cast for each of a plurality of molds can be reliably removed from the mold. It is an object to provide an apparatus. In this specification, including aluminum and an aluminum alloy, these are simply referred to as “aluminum” or “aluminum”.

Means for Solving the Problems and Effects of the Invention

In order to solve the above-mentioned problems, the present invention is based on the results of diligent research and testing by the inventors, and presents a plurality of molds penetrating the upper and lower surfaces of a coolable rotating body that exhibits a disk shape and rotates along the horizontal direction. It was conceived to cast molten metal such as aluminum and to sequentially drop the ingot previously cast from the inside of the mold cooled by rotating the rotating body to some extent.
That is, the casting apparatus of the present invention (Claim 1) is an apparatus for continuously casting a molten aluminum or aluminum alloy on an ingot, and is positioned around a rotating shaft having a vertical axial direction and the rotating shaft. And a disk-shaped rotating body that rotates together with the rotating shaft, a plurality of molds that penetrate between the upper surface and the lower surface of the rotating body, and a lower surface of the rotating body from the vicinity of the rotating shaft to the outer peripheral side. It includes a water-cooling means that covers a part of the lower surface in a range and a pouring means that is disposed above the rotating body and can be poured into the mold.

  According to this, the molten aluminum poured into the mold or molds located along the radial direction of the rotating body from the pouring means is rapidly cooled by the water cooling means forming the bottom surface of the mold. Then, it is solidified sequentially from the lower surface side in contact with the water cooling means, and is cooled while receiving the rotation along the horizontal direction of the rotating body to become an ingot (ingot) following the inner surface shape of the mold. The ingot is removed from the mold by the solidification contraction and its own weight and falls below the rotating body when the mold is detached from the position in contact with the water cooling means by the rotation of the rotating body. For this reason, the configuration of the apparatus is simple and the whole can be made compact, and can be easily installed even in a relatively narrow space. Therefore, the equipment cost can be reduced, the operation can be performed easily and easily, the maintenance can be minimized, and the working environment can be made quiet.

Note that the ingot cast by the casting apparatus of the present invention is not limited to the one that has a plurality of side surfaces with loose taper, but has a generally tapered shape, such as a triangular prism, a substantially quadrangular prism, etc. An ingot having a substantially cylindrical shape, a substantially elliptical column shape, or a substantially long cylindrical shape is included. Such an ingot is relatively smaller than an ingot of a general shape that has a substantially rectangular parallelepiped shape including four sides that are long and short with a loose taper. For example, the ingot is made of a normal aluminum alloy and is light in weight of about 100 to several hundred grams. Small small chunks are also included.
The rotating body is made of copper or graphite having high thermal conductivity, cast iron or cast steel, or an assembly of a plurality of these molded bodies.

Further, the rotating body is, for example, a chain fixed to the outer peripheral surface thereof, a sprocket meshing with the chain, a combination of motors (including a hydraulic motor, the same applies below) for rotating the sprocket, or an outer peripheral surface of the rotating body. The gear is rotated by a combination of a driven gear fixed to the gear, a driving gear meshing with the gear, and a motor for rotating the gear. Or you may rotate a rotary body with the combination of the gear train or two sprockets which rotate the said rotating shaft, and the motor which rotates these.
Further, the water cooling means covers a part of the lower surface of the rotating body in the circumferential direction of the lower surface in the range from the vicinity of the rotating shaft to the outer peripheral side.
Further, the pouring means includes, for example, a form made of a refractory that receives a molten aluminum melted from a melting furnace, and one or a plurality of tapping holes provided on the bottom surface on the front end side of the slag. It is done.
In addition, it is desirable to dispose a cooling water tank that receives a falling ingot or a transport carriage that places the water tank on a cargo bed, at a position below the rotating body and without the water cooling means.

Further, according to the present invention, the plurality of molds have a shape with a taper that spreads toward the lower surface of the rotating body, a casting hole that opens on the upper surface of the rotating body, and a rotating body having a wider area than this. A casting apparatus (Claim 2) is also included.
According to this, since the molten aluminum poured into each mold becomes a tapered ingot having a wide lower surface on the dropping port side and a narrow upper surface near the casting port, the position is away from the water cooling means. In addition, when the mold moves together with the rotating body, it can be easily removed from the mold and easily dropped along with the solidification shrinkage.
Furthermore, the present invention also includes a casting apparatus (Claim 3) in which the mold has a pouring hole that opens wider than the casting hole at the upper part of the casting hole.
According to this, when pouring the molten aluminum from the pouring spout of each mold, the pouring amount is smaller than the volume of the casting mold, that is, the level of the molten metal (melt surface) is the same as that of the casting spout. Alternatively, by making it lower than this, the ingot obtained with coagulation shrinkage can be easily removed from the mold and dropped. The amount of molten aluminum (volume) is about 60 to 90% of the volume of the casting mold.
A general mold release agent such as titanium oxide is applied to the inner surface of each mold.

The present invention also includes a casting apparatus (Claim 4) in which the plurality of molds are disposed on substantially the entire surface of the rotating body in a plan view and at substantially equal intervals.
According to this, a plurality of small ingots having a relatively small volume are simultaneously provided by diverting and pouring the molten aluminum from a plurality of outlet holes provided in the pouring means and along the radial direction of the rotating body. Can be cast one by one. Alternatively, in the embodiment in which a single mold is provided along the radial direction of the rotating body and a plurality of molds are provided along the circumferential direction, the whole of the molten metal is poured substantially from the single or plural outlet holes of the pouring means. It becomes possible to continuously cast an ingot having a general shape that has a rectangular parallelepiped shape.
The plurality of molds may be arranged at least along the circumferential direction of the rotating body.

Furthermore, in the present invention, the water cooling means includes a water cooling tank including a top plate that can come into surface contact with the lower surface of the rotating body, and a water supply pipe and a drain pipe for supplying and discharging cooling water to and from the water cooling tank. A casting apparatus (Claim 5) is also included.
According to this, immediately after being poured into each mold, the molten aluminum comes into contact with the top plate of the water-cooled tank that closes the dropping port of the mold and begins to solidify while being rapidly cooled. Since shrinkage occurs due to solidification, an ingot having a shape that follows the inner surface of the mold can be obtained.
The water-cooled tank has a substantially fan shape in plan view. Among such water-cooled tanks, at least the top plate that is in surface contact with the lower surface of the rotating body is formed of at least a surface layer of a wear-resistant and heat-resistant material (for example, carbide, ceramic, carbon fiber layer, etc.) A release agent similar to that described above is applied thereon.

In addition, according to the present invention, a casting device (Claim 6) in which a circulation channel for cooling water communicating with a water supply channel and a drain channel built in the rotation shaft is formed inside the rotating body. Is also included.
According to this, in addition to cooling the casting mold side of each mold by the water cooling tank of the water cooling means, the cooling water cools the circulation flow path formed around each mold, so that the cooling water is poured into each mold. The molten aluminum can be rapidly cooled over almost the entire inner surface of the mold except the pouring side. For this reason, it can be made into the ingot which solidified and contracted the said molten metal more rapidly. In addition, since the area of the water cooling tank of the water cooling means that is in surface contact with the lower surface of the rotating body can be reduced, the water cooling tank can be downsized.
In addition, it is desirable to arrange | position the circulating flow path of the cooling water formed inside a rotary body as much as possible in the part where the space | interval of adjacent casting_mold | templates is a certain amount or more.

In the following, the best mode for carrying out the present invention will be described.
FIG. 1 is a plan view schematically showing a casting apparatus 1 according to an embodiment of the present invention, FIG. 2 is a vertical sectional view showing the outline of the casting apparatus 1, and FIG. 3 is an exploded perspective view of the casting apparatus 1.
As shown in FIGS. 1 to 3, the casting apparatus 1 includes a rotary shaft 2 whose axial direction is vertical, and a disk shape that is positioned around the rotary shaft 2 and rotates along with the rotary shaft 2 along the horizontal direction. And a plurality of molds c penetrating between the upper surface 5 and the lower surface 6 of the rotating body 4 and arranged on the substantially entire surface of the upper surface 5 at substantially equal intervals in plan view. .
As shown in FIG. 2, the rotating shaft 2 includes an upper shaft 2 a protruding from the upper surface 5 of the rotating body 4 and a lower shaft 2 b depending from the lower surface 6 of the rotating body 4, and the lower shaft 2 b is on the floor F. Are supported by ball bearings b at the upper end of a cylindrical support 18 standing upright. Thus, the rotating shaft 2 and the rotating body 4 can be rotated along the horizontal direction.

  In addition, as shown in FIGS. 1 to 3, each of the plurality of molds c is substantially square in plan view, and has a pouring port 7 that opens to the upper surface 5 and an opening that opens to the lower surface 6 and is substantially equivalent to the pouring port 7. Each has a drop opening 8 having an area, and a casting hole 9 having the narrowest cross-sectional area located between these and the upper portion near the pouring port 7. A titanium oxide release agent is applied to the inner surface of the mold c. In addition, the casting mold c is not disposed between the rotating body 4 near the rotating shaft 2 and between the left and right casting mold groups c in FIG. 1 and FIG. , 15 and a plurality of circulation channels 14 are formed. In addition, as shown in FIG. 2, the circulating flow path 14 for the cooling water w is also formed between the adjacent molds c and c, the inner side of the innermost mold c, and the outer peripheral side of the outermost mold c. Yes.

Further, as shown in FIGS. 2 and 3, a plurality of rollers R are in contact with the outermost peripheral side of the lower surface 5 of the rotating body 4 so as to allow rolling. The plurality of rollers R are attached to the upper surfaces of a plurality of foundations k that are erected from the floor F symmetrically about the rotation shaft 2.
Among these, the base k located on the left side in FIGS. 1 to 3 is mounted with a motor M having a rotation axis j in a vertical direction on a table T projecting outward from the foundation k and fixed to the rotation axis j. The sprocket s meshes with the chain 12 fixed in an annular shape along the outer peripheral surface 10 of the rotating body 4. The motor M may be a hydraulic motor.
Therefore, by driving the motor M, the rotating body 4 together with the rotating shaft 2 can be rotated along the horizontal direction at a relatively slow speed of about 1 rpm.

Further, as shown in FIG. 2, a water supply pipe 16 of the cooling water w communicating with the water supply path 13 in the rotating body 4 is connected to the center portion of the lower shaft 2b of the rotating shaft 2 through a universal joint uj. In addition, a drain pipe 17 of the cooling water w communicating with the drain path 15 in the rotating body 4 is connected to the central portion of the upper shaft 2a of the rotating shaft 2 through a universal joint uj. The water supply pipe 16 passes through a hole h opened in the side wall of the support 18.
As shown on the right side of FIGS. 2 and 3, below the rotating body 4, water cooling means 20 including a water cooling tank 21 having a substantially fan shape in plan view is arranged. The top plate 22 of the water-cooled tank 21 is in surface contact with the lower surface 6 while covering a part in the circumferential direction on the lower surface 6 of the rotating body 4 from the vicinity of the lower shaft 2b of the rotating shaft 2 to the outer peripheral side. And is slidable. The same release agent as that described above is also applied to the top plate 22. A water supply pipe 23 and a drain pipe 24 for the cooling water w communicate with the bottom surface of the water cooling tank 21.

Further, as shown on the left side of FIGS. 2 and 3, a water tank 25 having a substantially fan shape in plan view is disposed below the rotating body 4 and on the floor F via a pedestal (not shown).
In addition, as shown in the upper right side of FIGS. 2 and 3, above the rotating body 4, molten aluminum m is poured almost simultaneously into a plurality of molds c along the radial direction of the rotating body 4. A pouring means 26 is provided for this purpose. The pouring means 26 includes a refractory rod 27 into which molten aluminum m discharged from a melting furnace (not shown) flows, a plurality of outlets 28 opened at the bottom of the tip, and the outlet 28. A plurality of hot water discharge pipes 29 that are provided and hang down from the bottom surface of the bowl 27 are provided.

Here, an operation (use) method of the casting apparatus 1 will be described.
In advance, a titanium oxide release agent is applied to the inner surface of each mold c of the rotating body 4 and the top plate 22 of the water cooling tank 21, and the motor M is driven to rotate the rotating body 4 together with the rotating shaft 2. Is rotated along the horizontal direction at a gentle speed of about 1 rpm. Further, the cooling water w is circulated from the water supply pipe 16 in the order of the water supply path 13, each circulation flow path 14, the drainage path 15, and the drainage pipe 17 in the rotating body 4, and also in the water cooling tank 21 of the water cooling means 20. The cooling water w is circulated through the water supply pipe 23 and the drain pipe 24.
The relatively warm water drained from the drain pipes 17 and 24 is cooled again through a cooling water tank or a heat exchanger (not shown) and circulated as the cooling water w.
Further, as shown in FIGS. 3 and 4, a plurality of hot water outlets 28 provided in the hot water outlet pipe 29, which are located on the distal end side of the tub 27 in the pouring means 26, are arranged along the radial direction of the rotating body 4. It arrange | positions just above each pouring spout 7 of the some casting_mold | template c.

Next, as shown in FIG. 4 and FIG. 6, the molten aluminum m sent to the gutter 27 of the pouring means 26 is fed to the rotary body 4 located directly below from the outlets 28 in the plurality of outlet pipes 29. The dropping port 8 is poured into a plurality of molds c closed by the top plate 22 of the water cooling tank 21. At this time, the volume of the molten metal m poured into each mold c is set so that the molten metal surface is at the same level as or lower than the casting hole 9 in the mold c. Incidentally, the lower side from the casting port 9 to the dropping port 8 occupies about 60 to 90% of the internal volume of each mold c.
In addition, since the rotational speed of the casting_mold | template c becomes quick, so that the rotary body 4 leaves | separates from the rotating shaft 2, the internal diameter of the hot water outlet 28 poured into the casting mold c near the rotating shaft 2 is made small, and the hot water speed is made slow. Thus, it is preferable to make the amount of the molten metal m poured into each mold c equal. In addition, it is preferable that a protrusion (not shown) protrudes from the upper surface 5 between the adjacent molds c and c so that the poured molten metal m quickly flows into the closest mold c.

  The molten aluminum m poured into each mold c is converted into an inner surface of the mold c by the cooling water w flowing in the water cooling tank 21 and the circulation channel 14 located around the water cooling tank 21 that closes the dropping port 8 of the mold c. It is rapidly cooled from the outer peripheral side in contact with and begins to solidify centripetally. As a result, an ingot (small ingot) C is obtained which is a substantially quadrangular prism body that follows the internal shape below the casting port 9 and has a loose taper on each side surface. During this time, the molten metal m poured into each mold c with the horizontal rotation of the rotator 4 becomes the ingot C, and on the top plate 22 of the water-cooled tank 21 in the circumferential direction of the rotator 4. Go along.

Further, each ingot C starts to be detached from the inner surface of each mold c due to contraction accompanying solidification while the rotating body 4 horizontally rotates about half a circumference from the initial position where the molten metal is poured, and FIG. 6, when the water w is separated from the top plate 22 of the water cooling tank 20 and reaches the upper side of the water tank 25 where the water w is stretched, Towards the head, it falls by its own weight at almost the same time or at a slightly shifted timing. The ingot C has a substantially quadrangular prism shape with a loose taper on each side, as illustrated in the lower right of FIG. As shown in FIG. 6, the molds c in which the ingots C dropped are returned to the upper side of the water cooling tank 21 as the rotating body 4 rotates, and the molten aluminum m is poured as described above. Is done.
The above-described pouring, solidification, and dropping of the ingot C of the molten metal m are surely performed every time the rotating body 4 performs horizontal rotation one by one, and many ingots C are continuously and efficiently cast. Can do.

  According to the casting apparatus 1 as described above, the molten aluminum m poured into the plurality of molds c positioned along the radial direction of the rotating body 4 from the pouring means 26 is circulated around each mold c. The cooling water w in the passage 14 and the cooling water w in the water cooling tank 21 in contact with the bottom surface thereof are rapidly cooled and solidified sequentially from the outer peripheral side in contact with the inner surface of each mold c. In parallel, the ingot C follows the shape of the inner surface of the mold c while rotating along the horizontal direction of the rotating body 4. When the mold c is detached from the water cooling tank 21 of the water cooling means 20 by the rotation of the rotating body 4, the ingot C is demolded from each mold c and falls below the rotating body 4 due to its solidification contraction and its own weight. . For this reason, the configuration of the apparatus is simple and the whole can be made compact, and can be easily installed even in a relatively narrow space. Therefore, the equipment cost can be reduced, the operation can be performed easily and easily, the maintenance can be minimized, and the working environment can be made quiet.

FIG. 7 is a plan view showing a rotating body 30 of a different form, and FIG. 8 is a partial vertical sectional view taken along the line XX in FIG.
As shown in FIG. 7, the rotating body 30 has the same rotating shaft 2 at the center, has a disk shape that rotates horizontally with the rotating shaft 2, and has a circular upper surface 31 and a lower surface 32. Between the upper surface 31 and the lower surface 32, molds c1 to c6 having different shapes pass through in the radial direction, and a plurality of sets of the molds c1 to c6 are rotating bodies around the rotation axis 2. They are arranged at equal intervals and symmetrically along 30 circumferential directions.

As shown in FIGS. 7 and 8, each mold c <b> 1 positioned near the rotation axis 2 is substantially trapezoidal in plan view, and has a pouring port 34 that opens to the upper surface 31, and an opening that opens to the lower surface 32 and substantially the same as the pouring port 34. There is a drop opening 35 having an equivalent area, and a casting hole 36 having the narrowest cross-sectional area located between these and the upper part near the pouring hole 34.
As shown in FIGS. 7 and 8, the molds c2 to c6 arranged in the radial direction and toward the outer peripheral side of the rotating body 30 have trapezoidal shapes that are sequentially flatter than the mold c1 in plan view. 34, a drop opening 35, and a casting hole 36.
The molds c1 to c6 are not necessarily required to have the same volume at least in the lower part from the casting port 36 to the dropping port 35, but are preferably the same in consideration of cooling of the rotating body 30. .

As shown in FIG. 8, a circulation channel 38 for flowing the cooling water w similar to the above is formed between and around the molds c1 to c6 in the rotating body 30, and a water supply channel 37 and a drain channel (not shown) are also formed. Has been. The illustration of the chain 12 is omitted.
In the rotating body 30 in which a plurality of sets of the molds c1 to c6 as described above are arranged at equal intervals along the circumferential direction, the molten aluminum m sent to the gutter 27 of the pouring means 26 is used as a plurality of tapping pipes. In the rotary body 30 located directly below the hot water outlet 28 in 29, each dropping port 35 is surely poured into the molds c <b> 1 to c <b> 6 closed by the top plate 22 of the water cooling tank 21. be able to.
According to the casting apparatus using the rotating body 30 as described above together with the water cooling means 20 and the like, the same operation as the casting apparatus 1 can be achieved, and the same effect as described above can be achieved.

FIG. 9 is a cross-sectional view similar to FIG. 8 showing a rotator 39 which is a modified form of the rotator 30. As shown in FIG. 9, the rotating body 39 penetrates between the upper surface 31 and the lower surface 32, has a substantially trapezoidal vertical cross section, and has a casting port 34 that opens to the upper surface 31, and opens to the lower surface 32 and a pouring port The casting molds d1 to d5 having a drop opening 35 having an area larger than 34 and having a loose taper that extends toward the lower surface 32 on the inner wall surface are arranged in the same manner as described above.
Note that each mold c of the rotating body 4 may have a shape in which the pouring mouth 7 is not provided and the vertical section having only the casting port 9 and the dropping port 8 has a substantially trapezoidal shape.

FIG. 10 is a plan view showing a further different form of the rotating body 40, and FIG. 11 is a partial vertical sectional view taken along the line YY in FIG.
As shown in FIG. 10, the rotating body 40 has the same rotating shaft 2 at the center, has a disk shape that rotates horizontally with the rotating shaft 2, and has a circular upper surface 41 and a lower surface 42. Between the upper surface 41 and the lower surface 42, a mold c7 that is substantially rectangular in plan view and extends in the radial direction passes through, and the plurality of molds c7 have a circumference of the rotating body 40 around the rotation axis 2. They are arranged at regular intervals and symmetrically along the direction.
As shown in FIGS. 10 and 11, the mold c <b> 7 is the narrowest located in the upper portion near the pouring port 44 between the pouring port 44 opened in the upper surface 41, the dropping port 45 opened in the lower surface 42. And a casting hole 46 having a cross-sectional area.

As shown in FIG. 11, a circulation channel 48 for flowing the cooling water w similar to the above is formed between and around the molds c7 and c7 in the rotating body 40, and a water supply channel 47 and a drain channel (not shown). Is also formed.
In the rotating body 40 in which the plurality of molds c7 as described above are arranged at equal intervals in the circumferential direction, the molten aluminum m sent to the rod 27 of the pouring means 26 is used as a single or a plurality of tapping pipes 29. It is possible to reliably pour hot water into the single mold c7 where the drop port 45 is closed by the top plate 22 of the water-cooled tank 21 in the rotary body 40 located directly below from the hot water outlet 28 inside. it can.
According to the casting apparatus using the rotating body 40 as described above together with the water cooling means 20 and the like, as shown in the lower part of FIG. 11, the whole is generally a rectangular parallelepiped, and each side has a loose taper. Ingot C1 can be cast continuously and efficiently. Therefore, the same operation as that of the casting apparatus 1 can be achieved, and the same effect as described above can be achieved.

The present invention is not limited to the embodiments described above.
For example, the plurality of molds arranged on the rotating body have a circular, oval, or oval shape in plan view, and a substantially drum-shaped cross section having a casting hole between the pouring port and the dropping port, or The cross section may have a substantially trapezoidal shape.
Moreover, you may arrange | position together with many types of casting_mold | templates from which both a shape and volume differ in one rotary body.
Further, three or five or more of the rollers R contacting the outer peripheral side of the lower surface of the rotating body may be arranged symmetrically with respect to the rotating shaft 2, or instead of the rollers R, rolling A plurality of free balls may be used.
In addition, the pouring means has, for a plurality of molds positioned along the radial direction on the upper surface of the rotator, a plurality of tubs 27 having a pouring outlet 28 and a pouring pipe 29 and the same number as the molds. These may be arranged independently of each other.

The top view which shows the outline of the casting apparatus of 1 form by this invention. The vertical sectional view showing the outline of the above-mentioned casting device. The disassembled perspective view which shows the outline of the said casting apparatus. The partial vertical sectional view which shows the use condition of the said casting apparatus. The partial vertical sectional view which shows the use condition in a different part. The vertical sectional view which shows each use condition of the said casting apparatus. The top view which shows the rotary body of a different form. FIG. 8 is a partial vertical cross-sectional view along the line XX in FIG. 7. The same partial vertical sectional view as FIG. 8 which shows the deformation | transformation form of the said rotary body. Furthermore, the top view which shows the rotary body of a different form. FIG. 11 is a partial vertical sectional view taken along the line YY in FIG. 10.

Explanation of symbols

1 ………………………… Casting device 2 ………………………… Rotating shaft 4,30,40 ………… Rotating body 5,31,41 ………… Top surface 6,32 , 42 ………… Bottom surface 7,34,44 ………… Pouring port 8,35,45 ………… Dropping port 9,36,46 ………… Cast 13,37,47 ……… Water supply channel 14, 38, 48 ......... Circulating channel 15 ..................... Drain channel 20 ... …………………… Water cooling means 21 ……………………… Water cooling tank 22 …… ………………… Top plate 23 ……………………… Water supply pipe 24 ……………………… Drain pipe 26 ……………………… Water pouring means m ……… ………………… Molten metal c, c1 to c7 ………… Molds d1 to d5 ……………… Molds w ………………………… Cooling water C, C1 ……………… ... Ingot (small ingot / ingot)

Claims (6)

An apparatus for continuously casting a molten aluminum or aluminum alloy into an ingot,
A rotation axis whose axial direction is vertical;
A disk-shaped rotating body that is positioned around the rotating shaft and rotates with the rotating shaft;
A plurality of molds penetrating between the upper surface and the lower surface of the rotating body;
Water cooling means for covering a part of the lower surface in the range from the vicinity of the rotation axis to the outer peripheral side of the lower surface of the rotating body;
Pouring means disposed above the rotating body and pouring the molten metal into the mold.
A casting apparatus characterized by that. The plurality of molds have a shape with a taper extending toward the lower surface of the rotating body, a casting hole opening on the upper surface of the rotating body, and a dropping port opening on the lower surface of the rotating body with a larger area than this. And,
The casting apparatus according to claim 1. The mold has a pouring opening that opens wider than the casting hole at the upper part of the casting hole.
The casting apparatus according to claim 2. The plurality of molds are arranged on substantially the entire surface of the rotating body in a plan view and at substantially equal intervals.
The casting apparatus according to any one of claims 1 to 3, wherein: The water cooling means includes a water cooling tank including a top plate that can be brought into surface contact with the lower surface of the rotating body, and a water supply pipe and a drain pipe for supplying and draining cooling water to the water cooling tank.
The casting apparatus according to any one of claims 1 to 4, wherein: A cooling water circulation passage communicating with a water supply passage and a drain passage built in the rotary shaft is formed inside the rotating body.
The casting apparatus according to any one of claims 1 to 5, wherein:

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