JP4900761B2 - Vertical casting machine for aluminum - Google Patents

Description

  The present invention relates to a vertical casting apparatus for aluminum. In the present specification, “aluminum” includes aluminum alloy as well as aluminum.

In many cases, when an aluminum material is subjected to plastic working such as extrusion, rolling, forging, or semi-molten forming, an aluminum casting is used. Such a cast material is mainly manufactured by a vertical continuous casting method (DC casting method), but in some cases, a horizontal continuous casting method in which continuous casting is performed along the horizontal direction is also performed.
By the way, an aluminum cast material cannot be bent in the horizontal direction and bent in the horizontal direction while being continuously cast by being sandwiched between a number of pinch rollers along the vertical direction like steel and copper. For this reason, the vertical casting method of aluminum is generally called a semi-continuous casting method because it can be continuously cast only up to a length of about 6 m. Therefore, when a large number of castings for each product used for the plastic working are required, there is a problem that the productivity is low and the cost is increased.
Further, in the case of the horizontal continuous casting method described above, there is a problem that the alloy elements may segregate in the metal structure of the obtained cast material, and the quality is likely to vary.

Thus, the inventors have proposed a highly productive vertical casting apparatus for aluminum, which is obtained by sequentially cutting the aluminum casting material previously cast in a vertical pattern into a billet in units of a product by a predetermined length ( Japanese Patent Application Nos. 2003-431758 and 2004-127049).
In the vertical continuous casting apparatus, the cast material and the lower mold are separated by the first cutting, and thereafter, the cast material cannot be pulled downward by the lower mold. For this reason, a feeding means comprising a pair of crawlers or the like is provided that sandwiches the casting material separated from the lower mold and sends it downward.
However, when continuous casting is performed using the pinch roller or the crawler, there are the following problems.

1. At the beginning of casting, molten metal leakage is likely to occur, and the molten metal flows down along the surface of the cast aluminum material cast, damaging the pinch rollers and crawlers or overloading them.
2. Naturally, there was a limit to dealing with dimensional variations and shape abnormalities of aluminum castings that occurred during casting.
3. Since the aluminum cast material and the pinch roller or crawler slip, the appearance shape of the cast material and the dimensions of the billet after cutting are adversely affected.
4). Since the pinch roller and the crawler rotate while contacting the peripheral surface of the aluminum cast material, the roller and the crawler wear and the dimensions and shape of the cast material change.
5. When changing the cross-sectional dimension or shape of an aluminum casting material, significant setup work is required, such as changing the spacing between opposing pinch rollers or between crawlers and aligning the cores, resulting in a significant reduction in productivity. Let

  The present invention solves the problems 1 to 5 and the like shown in the background art described above, is less damaged by molten metal leakage, stabilizes the dimensions and shape of the cast material and billet, and reduces changes in the cross-sectional dimensions of the cast material. An object of the present invention is to provide a vertical casting apparatus for aluminum that can be easily set up.

Means for Solving the Problems and Effects of the Invention

In order to solve the above-mentioned problems, the present invention arranges a plurality of clamps that clamp the aluminum cast material descending from the mold from its radial direction so that it can be moved up and down along the descending locus of the cast material. It was conceived to cut the cast material while clamping the cast material with a clamp.
That is, the vertical continuous casting apparatus for aluminum according to the present invention (Claim 1) includes a mold into which a molten aluminum (including an alloy thereof, the same applies hereinafter) is poured, a mold located below the mold and the mold. A plurality of vertically movable clamps for clamping the aluminum casting material descending from the radial direction, and at least one clamp in the plurality of clamps, the aluminum casting material descending along the radial direction a cutting means for cutting comprises a single guide or a plurality of dedicated guides arranged along the downward direction of the cast material of the aluminum, the guide is a pair of parallel steel H, the cutting means, said plurality of being movable up and down in synchronism with the bottom of the clamp of the clamp, the plurality of clamps, a portion of the pair of H steel insert A pair of concave grooves provided on the back surface and at least a pair of left and right claw pieces approaching and separating along the horizontal direction on the surface of the base, and so as to descend in synchronization with the cast material by being vertically movably supported by a pair of H steel, in synchronization with each other, or individually liftable, among a plurality of clamps, always clamp the cast material of the aluminum to be lowered by one of the clamp It is characterized by that.

According to this, when the molten aluminum poured into the mold is solidified, the aluminum cast material is always clamped (gripped) by one of the clamps in descending from the mold, and is synchronized with the lowermost clamp. By the cutting means that can be moved up and down, the billet is sequentially cut from the tip (lower end) as a billet of a desired length. For this reason, at the start of casting, the tip of the cast material is lowered while being in close contact with a lower mold, which will be described later, but once cut by the cutting means, the clamp and at least one of the clamps and the mold, The cast material itself descends continuously along the core at a predetermined position. That is, the casting material descending from the mold can be surely lowered along a predetermined trajectory while being always clamped by at least one of a plurality of clamps, and the casting material is sequentially cut from the tip (lower end) side. etc. can be a continuously obtained billet.
Therefore, by controlling the heights of the plurality of clamps and the cutting means, it is possible to automatically obtain billets of arbitrary length continuously.

In addition , the guide is a pair of parallel H steels, and the plurality of clamps includes a base having a pair of concave grooves into which a part of the pair of H steels is inserted on the back surface . The clamp includes at least a pair of left and right claw pieces that approach and separate from each other along the horizontal direction on the surface of the base .
These, the plurality of clamps includes a pair of nail pieces accessibility, separable from each other, for gripping (clamping) the aluminum cast material during the claw piece together according hardly adversely affected by molten aluminum leaks , runout occurs difficulty Kunar of the trajectory of the cast material to be lowered. For this reason, since the clamp is difficult to slip and wear with the cast material, the dimensional and shape accuracy of the cast material and the billet cut from the cast material are improved and stabilized. Moreover, even when the cross-sectional dimension (for example, diameter) of the cast material is changed, the clamp includes a pair of claw pieces that can be approached and separated, and therefore can be handled very easily.

Note that the mold used in the vertical vertical casting apparatus for aluminum has a casting hole which is circular or substantially quadrangular (square or rectangular) in plan view and has a diameter that slightly expands downward. The cooling water is jetted in a substantially inverted conical shape from a slit hole or the like at the lower corner of the hollow portion provided around, and the same applies to the following. Along with the shape of the casting hole, the cross-section of the cast material cast in a vertical pattern is circular or substantially square . The cutting means includes a circular saw or a chain saw, and a motor, a slide mechanism, and the like that support these in rotation and horizontal movement .

Further, according to the present invention, an aluminum vertical casting apparatus (invention) in which each inner side surface of the claw piece is symmetrically provided with a rounded surface capable of increasing a contact area with the cylindrical cast material. Item 2 ) is also included.
According to this, since a pair of nail | claw pieces can enlarge a contact area with a column-shaped casting material, this casting material can be clamped reliably.

Further, in the present invention, below the mold, a lower mold that comes into contact with the tip of an aluminum cast material descending from the mold and descends in synchronization with the cast material is disposed so as to be movable up and down. A vertical casting apparatus for aluminum (Claim 3 ) is also included.
According to this, immediately after the start of casting, the cast material descending from the mold descends at the casting speed of the casting in a state where its tip (lower end) is in contact with the upper end of the lower mold and solidified. At the same time, it is clamped to any or all of the plurality of clamps at a predetermined position. For this reason, the cast material that descends at the start of casting can be moved closer to the cutting means while the clamp is smoothly clamped.
The lower mold is configured such that the upper end portion thereof can be inserted into the casting hole of the mold and descends in synchronism with the cast material to be cast.

The cutting means has a configuration in which a circular saw or the like is supported on a part of the lowermost clamp so as to be rotatable and horizontally movable .

In the following, the best mode for carrying out the present invention will be described.
1 and 2 are a side view and a front view showing an aluminum vertical casting apparatus (hereinafter simply referred to as a continuous casting apparatus) 1 of the present invention.
As shown in FIGS. 1 and 2, the continuous casting apparatus 1 includes a water-cooled mold 2 into which a molten metal m of aluminum (including its alloy) is poured, a cylindrical heat insulating material 5 disposed above the mold 2. The electromagnetic stirrer 6 surrounding these outsides, the guide 10 located in the mold 2, the upper and lower clamps 20 and 30, and the circular saw (cutting means) 40 are included.
The mold 2 has a ring-shaped slit hole s obliquely downward along the lower protruding corner of the inner casting hole 4, and the cooling water w filled in the hollow part 3 is substantially conically shaped obliquely downward. It is possible to inject. The casting hole 4 has a circular shape in plan view and slightly increases in diameter toward the bottom. Note that a large number of pores may be formed instead of the slit holes s.

As shown in FIGS. 1 and 2, the pouring hole 5a of the heat insulating material 5 is concentric with the casting hole 4 and is poured from a melting furnace, holding furnace, ladle or the like (not shown). The molten aluminum m is guided into the casting hole 4 of the mold 2.
Further, as shown in the figure, the electromagnetic stirring device 6 is formed by winding a large number of coils having a circular shape in plan view so as to surround the mold 2 and the heat insulating material 5, and when the coil is energized, The molten aluminum m poured into the casting hole 4 is agitated by the force induced by the generated magnetic field. As a result, the solidified structure is divided to have a large number of substantially spherical crystals, and an aluminum casting material M suitable for semi-molten metal molding or the like can be obtained. For this reason, the molten metal m becomes a cast material M free from segregation of components such as alloy elements.
The mold 2 and the like are supported by a building deck (not shown) or the like through a heat-resistant ring (not shown) having a tapered hole communicating with the lower side of the casting hole 4.

As shown in FIGS. 1 and 2, below the mold 2 and the like, there are a pair (a plurality) of upper clamps 20 and a lower clamp 30 for clamping the aluminum casting material M descending from the mold 2 from the radial direction. , And can be moved up and down so as to be able to descend in synchronization with the cast material M. A circular saw 40 as a cutting means is supported on a part of the lower clamp 30 in a horizontal posture and capable of rotating and horizontally moving.
Further, a pit 8 is formed on the lower floor 7 of the upper and lower clamps 20, 30, and the pit 8 descends synchronously with the upper end contacting the tip (lower end) of the cast material M. At least the lower part of the cylindrical lower mold 9 is arranged to be movable up and down. The lower mold 9 has a circular cross section similar to the cross section of the cast material M, and its upper end can be inserted into the casting hole 4 of the mold 2 when it is raised.

As shown in FIGS. 1 and 2, around the pit 8, the upper and lower clamps 20 and 30 are supported to be movable up and down, and a pair of parallel H steels 10 a and 10 b serving as a common guide 10 are provided. Stands vertically. Note that a cooling water tank (not shown) for cooling and penetrating the casting material M is disposed between the mold 2 and the upper clamp 20.
As shown in the upper part of FIG. 3, the upper clamp 20 has a substantially rectangular parallelepiped base 21, a pair of left and right concave grooves 22 having a substantially T-shaped cross section provided perpendicularly to the back surface of the base 21, and horizontally on the surface of the base 21. The provided dovetail groove 23 and a pair of left and right claw pieces 24a, 24b that engage with the dovetail groove 23 at the proximal end and approach and separate from each other along the horizontal direction are provided.

About half of the web 11 of the H steel 10a, 10b and one flange 12 are inserted into each concave groove 22, and the entire upper clamp 20 is supported through the base 21 so as to be movable up and down along the guide 10. ing.
For example, one end of a rope (not shown) is connected to the base 21 through a pulley, and the drum can be moved up and down by rotating a drum around which the other end of the rope is wound with a motor (none of which is shown). ing. The base 21 may be moved up and down by a linear motor along the H steels 10a and 10b.
In addition, the pair of claw pieces 24a and 24b are engaged with the vertical rods 26 individually hanging from the middle between them by engaging the piston rod 27 of the hydraulic cylinder 28 fixed to the base 21 so that the one-dot chain line in FIG. As indicated by the arrows, they approach and separate from each other along the longitudinal (horizontal) direction of the dovetail groove 23 (hereinafter simply referred to as “contact / separation”).

As shown in the lower part of FIG. 3, the lower clamp 30 has a substantially rectangular parallelepiped base 31, a pair of left and right concave grooves 32 having a substantially T-shaped cross section provided perpendicularly to the back surface of the base 31, and horizontally on the surface of the base 31. A pair of upper and lower dovetails 33a and 33b provided, and a pair of left and right upper and lower pairs in which the wide end portion 35 of the proximal end engages with the dovetail grooves 33a and 33b and contacts / separates along the horizontal direction. Claw pieces (clamps) 34a, 34b, 35a, 35b are provided.
A horizontal support portion 31a extends in parallel to and longer than the claw pieces 34a on the lower side of the base 31, and a rotating shaft 42 rotated by a motor (not shown) at the tip of the support portion 31a. The circular saw 40 shown in FIGS. 1 and 2 having the above is supported, and the circular saw 40 is horizontally movable toward the base 31. Further, the circular saw 40 stands by at a position where it does not come into contact with the descending cast material M, for example, in front of the left end of the base 31 in FIG. 3, and rotates and moves horizontally toward the base 31 only at the time of cutting.

Also in each concave groove 32, about half of the web 11 of H steel 10a, 10b and one flange 12 in the guide 10 and one flange 12 are inserted, and the entire lower clamp 30 and circular saw 40 are guided through the base 31. 10 is supported so as to be movable up and down.
In FIG. 3, the left claw pieces 34 a and 35 a and the right claw pieces 34 b and 35 b are individually connected by a vertical piece 37 in the middle thereof. By individually engaging the piston rods 38 of the two hydraulic cylinders 39 fixed to the base 31 with respect to each vertical piece 37, the dovetail grooves 33a, 33b are indicated by the dashed line arrows in FIG. The upper claw pieces 34a and 34b and the lower claw pieces 35a and 35b can be brought into and out of contact with each other along the longitudinal (horizontal) direction.

  Similarly to the above, the base 31 is connected to one end of a rope (not shown) via a pulley, and can be moved up and down by rotating a drum around which the other end of the rope is wound by a motor (none of which is shown). However, it is good also as raising / lowering by the linear motor along the said H steel 10a, 10b, for example. Further, as indicated by broken lines in FIG. 3, cylindrical castings M are provided on the inner side surfaces of the claw pieces 24 a and 24 b of the upper clamp 20, the claw pieces 34 a and 34 b of the lower clamp 30, and the claw pieces 35 a and 35 b. The round surfaces r that can increase the contact area with each other may be provided symmetrically. Furthermore, a fixing nut and a feed bolt, a pinion rack, or a crank mechanism that are screw-coupled to the fixing nut may be used as a mechanism for contacting and separating the claw pieces 24a and 24b.

Here, the vertical casting method of aluminum using the vertical casting apparatus 1 for aluminum will be described with reference to FIGS.
Prior to casting, the lower mold 9 is raised so that the upper end of the lower mold 9 enters the casting hole 4 of the mold 2 in advance. At this time, the lower die 9 is clamped between the claw pieces 24a and 24b of the upper clamp 20, between the claw pieces 34a and 34b of the lower clamp 30, and between the claw pieces 35a and 35b. In this state, as shown by an upper arrow in FIGS. 1 and 2, a molten m of aluminum (including its alloy) poured from a melting furnace or holding furnace (not shown) is poured into the casting hole 4 of the mold 2. Pour in.
The molten aluminum m is cooled by the cooling water w injected from the mold 2, the lower mold 9, and the hollow portion 3 of the mold 2 through the slit hole s while being stirred by the electromagnetic stirring device 6. . As a result, as shown in FIGS. 1 and 2, the molten metal m gradually solidifies from the surroundings to become an aluminum cast material M having a substantially cylindrical shape, and starts to descend while extending downward.

As shown in FIG. 4, the aluminum casting material M descending from the mold 2 descends together with the lower mold 9 while being sandwiched between 24 a and 24 b of the upper clamp 20 at a position near its lower end. At this time, the lower die 9 is sandwiched between the claw pieces 34a and 34b of the lower clamp 30 and between the claw pieces 35a and 35b until immediately before the lower mold 30 is lowered. , 34b and the claw pieces 35a, 35b.
The cast material M passes through between the claw pieces 34a and 34b and the claw pieces 35a and 35b of the lower clamp 30 which are separated from each other, and then, as shown in the lower part of FIG. It is clamped between 34a and 34b and between the claw pieces 35a and 35b. Immediately after this, as shown by the broken-line arrows in FIG. 5, the cast material M is released from the spaced apart 24 a and 24 b of the upper clamp 20.
In this state, the casting material M descends in synchronization with the lower clamp 30. During this time, the lower mold 9 also descends in synchronization.

Next, when the lower end (tip) of the cast material M reaches a predetermined position, the cast material M is sandwiched again between 24a and 24b of the upper clamp 20 and the claw pieces 34a of the lower clamp 30 as shown in FIG. 34b and between the claw pieces 35a and 35b. In this state, as indicated by the one-dot chain line arrow in FIG. 6, after the rotating circular saw 40 moves horizontally toward the base 31, the casting M is descending in synchronization with the upper and lower clamps 20, 30. Is cut along the radial direction at a predetermined length from its lower end. At the time of such cutting, the casting material M is sandwiched by both the upper and lower clamps 20 and 30 to suppress adverse effects on the mold 2 side.
As a result, as shown in FIG. 7, a portion of the casting material M near the lower end and having a predetermined length is taken out as a billet B onto the floor 7 outside the pit 8. Immediately after the billet B is taken out, the claw pieces 34a and 34b and the claw pieces 35a and 35b of the lower clamp 30 are separated from each other as shown by a broken line or a dashed line arrow in FIG. While opening, the circular saw 40 returns to the original standby position.

In the meantime, the lower die 9 is lowered into the pit 8 and stopped, and a molten aluminum m is continuously poured into the casting hole 4 of the mold 2.
Subsequently, as shown in FIG. 8, the continuously cast and descending aluminum casting material M is lowered while being sandwiched between the upper clamps 20 a and 24 b. When the lower end (tip) of the casting material M is lowered to a predetermined position, the claw pieces 34a and 34b and the claw pieces 35a and 35b of the lower clamp 30 sandwich the lower portion of the casting material M as shown in FIG. The cast material M and the upper clamp 20 are moved down in synchronization.
Next, when the lower end of the cast material M is lowered to a predetermined position, the upper clamp 20 24a and 24b are separated from each other and the cast material M is opened as shown by the broken arrows in FIG.

Further, when the lower end of the cast material M reaches a predetermined position, as shown in FIG. 11, it is sandwiched again between 24a and 24b of the upper clamp 20, and the claw pieces 34a and 34b and claw pieces 35a, Along with 35b, the cast material M is lowered while pinching.
In this state, as indicated by the one-dot chain line arrow in FIG. 11, after the rotating circular saw 40 moves horizontally toward the base 31, the casting M is descending in synchronization with the upper and lower clamps 20, 30. Is cut along the radial direction at a predetermined length from its lower end.
As a result, as in FIG. 7, a portion of the casting material M near the lower end and having a predetermined length is taken out as a billet B onto the floor 7 outside the pit 8.
Thereafter, the operations of FIGS. 7 to 11 are repeated. As a result, as long as the molten aluminum m is poured into the mold 2, the required number of billets B having a predetermined length and diameter can be continuously produced.

  According to the continuous casting apparatus 1 as described above, after the aluminum casting material M descends from the mold 2, it is always clamped (gripped) by at least one of the upper and lower clamps 20, 30, and is a circular saw (cutting means). By 40, the billet B of a desired length is sequentially cut from the tip (lower end). For this reason, at the start of casting, the tip of the cast material M descends while being in close contact with the lower mold 9, but once cut with the circular saw 40, the clamping by the clamps 20, 30 and the mold 2, The cast material M itself descends continuously along a predetermined core. Therefore, by controlling the heights of the pair (plurality) of clamps 20 and 30 and the circular saw 40, it is possible to automatically and continuously obtain a billet B having a predetermined cross section and an arbitrary length.

In addition, the clamps 20 and 30 include a pair of claw pieces 24a and 24b that can be contacted / separated, and the aluminum casting material M is gripped from the radial direction between them, so that the clamps 20 and 30 are unlikely to be adversely affected by leakage of molten aluminum. The core blurring of the trajectory of the descending cast material M is unlikely to occur. For this reason, the clamps 20 and 30 and the cast material M are unlikely to slip and wear, so that the dimensional and shape accuracy of the cast material M and the billet B obtained by cutting the cast material M are improved and stabilized.
Furthermore, when the mold 2 is changed to one having a different size or shape of the casting hole 4, the claw pieces 24a and 24b of the upper and lower clamps 20 and 30, the claw pieces 34a and 34b, and the claw pieces 35a and 35b. It is possible to set up extremely easily only by changing the distance (stroke) when the spaces approach each other. Furthermore, even when the casting hole 4 is changed to the mold 2 having a substantially square cross section, it can be easily handled in the same manner as described above. At this time, the claw pieces 24a, 24b and the like are not provided with the rounded surface r.
The circular saw 40 may be attached to the upper clamp 20 separately, or may be arranged separately from the lower clamp 30 and independently movable in the vicinity thereof. The clamp may be three or more solids along the vertical direction in which the cast material M descends, and the circular saw 40 may be disposed in the middle and lowermost clamps.

  FIG. 12 is a schematic view showing a continuous casting apparatus 1 a which is a modification of the continuous casting apparatus 1. As shown in FIG. 12, the continuous casting apparatus 1a includes the same mold 2, the heat insulating material 5, the electromagnetic stirrer 6, the upper and lower clamps 20, 30 surrounding the outside, the circular saw 40, and the like. Contains. Of these, the lower clamp 30 is supported by the pair of H steels 14 a and 14 b, which are dedicated guides 13, so that the concave grooves 32 and 32 are engaged and can be moved up and down. On the other hand, the upper clamp 20 is supported by a dedicated guide 15 that is separate from the guide 13.

The guide 15 includes a pair of left and right H steels 16a and 16b and a horizontal portion 17 that supports the lower ends thereof. As shown in FIG. 12, the guide 15 is located on the opposite side to the guide 13 with the pit 8 interposed therebetween, and the horizontal portion 17 is fixed at an intermediate height position in a building (not shown). .
According to the continuous casting apparatus 1a as described above, since the upper and lower clamps 20 and 30 are supported by the dedicated guides 13 and 15 so as to be movable up and down, the aluminum casting material M can be freely clamped at an arbitrary position. It is possible to minimize the distance between each other. The upper and lower clamps 20 and 30 are raised and lowered so that the respective claw pieces 24a and 24b and the claw pieces 34a and 34b do not interfere with each other. It is also possible to arrange an intermediate clamp supported by a dedicated guide so as to be movable up and down between the upper and lower clamps 20 and 30.

FIG. 13 is a schematic view showing a continuous casting apparatus 1b of a reference form. As shown in FIG. 13, the continuous casting apparatus 1 b includes the same mold 2, the heat insulating material 5, the electromagnetic stirring device 6 that surrounds the outside thereof, and the upper and lower clamps 20 and 30.
As shown in FIG. 13, the upper and lower clamps 20, 30 have the bases 21, 31 attached individually to the tips of the articulated robots 50, 60.
The articulated robot 50 to which the upper clamp 20 is attached includes a rotating part 51 provided on a deck 44 located in the middle of a trajectory in which the aluminum casting material M descends, a support part 52 erected thereon, a lower arm 54, an upper part An arm 56, a fixing portion 58 provided on the back surface of the base 21, and pins 53, 55, and 57 positioned therebetween are provided.
As shown in FIG. 13, the articulated robot 60 to which the lower clamp 30 is attached includes a rotating part 61 provided on the floor 7 and around the pit 8, a supporting part 62 erected thereon, a lower arm 64, An upper arm 66, a fixing portion 68 provided on the back surface of the base 31, and pins 63, 65, 67 located therebetween are provided.

The articulated robots 50 and 60 include rotating portions 51 and 61 that rotate in the horizontal direction, lower arms 54 and 64 that rotate in the vertical direction, upper arms 56 and 66, fixing portions 58 and 68, and pins interposed therebetween. The upper and lower clamps 20 and 30 can be moved in any three-dimensional direction via the bases 21 and 31 by means of 53 and 63, for example.
Specifically, as shown by the two-dot chain line arrows in FIG. 13, the lower arms 54 and 64 and the upper arms 56 and 66 are swung along the vertical direction, thereby allowing the bases 21 and 31 to pass through. With respect to the upper and lower clamps 20 and 30, the predetermined operation shown in FIGS. 4 to 11 can be performed in the middle and the lower part of the trajectory in which the cast material M descends. That is, the casting material M is grasped and released by the claw pieces 24a and 24b of the upper clamp 20, the casting material M is grasped by the claw pieces 34a, 34b, 35a and 35b of the lower clamp 30, and the cutting by the circular saw 40 at that time, And opening can be performed individually at a required position while synchronizing with the descending speed of the cast material M.

The articulated robots 50 and 60 are set in advance to control their movements so that the claw pieces 24a and 34a of the upper and lower clamps 20 and 30 do not interfere with each other.
According to the continuous casting apparatus 1b using the articulated robots 50 and 60 as described above, the guides 10, 13, and 15 can be omitted, and the space between the mold 2 and the pit 8 can be effectively used. At the same time, construction costs can be reduced. In addition, in order for the upper and lower clamps 20 and 30 to accurately perform the predetermined operations shown in FIG. 4 to FIG. Management and maintenance become easy because it is only necessary to input a program.
The circular saw 40 may be separately arranged near the upper clamp 20. Further, by utilizing the rotating parts 51 and 61, it becomes easier to install the articulated robots 50 and 60 at arbitrary positions. Further, in the continuous casting apparatus 1b, by using three or more articulated robots, it is possible to distribute each operation by the same number of clamps at three or more locations above and below the casting material M that descends. It is.

The present invention is not limited to the embodiments described above.
For example, the casting hole 4 of the mold 2 may have a substantially square or rectangular cross section, and the cross section of the continuously cast material M may have a similar shape (for example, a cast material for slabs).
Further, not only the pair of H-shaped steels 10a and 10b as in the guides 10, 13, and 15, but also a multistage boom that supports the base of each clamp so as to be movable up and down may be used as a guide.
Furthermore, in one continuous casting apparatus, one clamp may be supported by the guide 10 made of the pair of H-shaped steels 10a and 10b, and the other clamp may be attached to and supported by an articulated robot.
The present invention can be variously modified without departing from the spirit of the present invention.

The side view which shows the continuous casting apparatus of 1 form in this invention. The front view which shows the said continuous casting apparatus. The perspective view which shows the upper and lower clamp used for the said continuous casting apparatus. Schematic which shows 1 process of the continuous casting method using the said continuous casting apparatus. Schematic which shows the process following FIG. 4 in the said continuous casting method. Schematic which shows the process following FIG. 5 in the said continuous casting method. Schematic which shows the process following FIG. 6 in the said continuous casting method. Schematic which shows the process following FIG. 7 in the said continuous casting method. Schematic which shows the process following FIG. 8 in the said continuous casting method. Schematic which shows the process following FIG. 9 in the said continuous casting method. Schematic which shows the process following FIG. 10 in the said continuous casting method. Schematic which shows the continuous casting apparatus of the deformation | transformation form of the said continuous casting apparatus. Schematic which shows the continuous casting apparatus of a reference form.

Explanation of symbols

1, 1 a ... ............ Continuous casting machine 2 ........................... Mold 9 …………………… Lower mold 10, 13, 15… Guide 20 ………………… Upper clamp (Clamp)
30 …………………… Lower clamp (clamp)
40 …………………… Circular saw (cutting means)
50, 60 ………… Articulated robot m …………………… Aluminum melt M …………………… Aluminum casting

Claims (3)

A mold into which molten aluminum is poured;
A plurality of vertically movable clamps that clamp the aluminum casting material positioned below the mold and descending from the mold from the radial direction;
Cutting means disposed in the vicinity of at least one of the plurality of clamps and cutting the descending aluminum casting along the radial direction;
A single guide or a plurality of dedicated guides arranged along the descending direction of the cast aluminum material,
The guide is a pair of parallel H steels,
The cutting means can be moved up and down in synchronization with the lowermost clamp among the plurality of clamps ,
The plurality of clamps include a base having a pair of concave grooves into which a part of the pair of H steel is inserted on the back surface, and at least a pair of left and right claw pieces approaching and separating along the horizontal direction on the surface of the base. And can be moved up and down in synchronization with each other or individually by being supported by the pair of H steels so as to be lowered in synchronization with the cast material,
Among a plurality of clamps, always to clamp the cast material of the aluminum to be lowered by one of the clamp,
A vertical continuous casting apparatus for aluminum. The inner surfaces of the claw pieces are provided with rounded surfaces that can increase the contact area with the cylindrical cast material, respectively.
The vertical casting apparatus for aluminum according to claim 1. Below the mold, a lower mold that comes into contact with the tip of an aluminum cast material descending from the mold and descends in synchronization with the cast material is disposed so as to be able to be raised and lowered.
The vertical casting apparatus for aluminum according to claim 1 or 2.

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