JP3184883B2 - Ingot die-cutting method and removal jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing an ingot from a mold easily and a jig for removing the ingot.

[0002]

2. Description of the Related Art With the recovery of aluminum, the recovered aluminum is melted to produce an aluminum ingot. Conventionally, a molten metal was cast in an ingot mold, allowed to cool, and solidified, and then the die was removed by inverting the entire ingot mold.

[0003] The ingot mold is made of cast iron or cast steel, and if the weight of the molten metal to be cast is adjusted, mechanical strength must be used to reverse the top and bottom. Normally,
Use a hoist or fork of a forklift to reverse the top and bottom.

[0004]

However, reversing a heavy cast iron or cast steel ingot mold containing solidified metal is dangerous and can damage the ingot mold.

An object of the present invention is to propose an ingot die-cutting method which does not perform die-cutting, which is dangerous and easily damages the ingot mold, so as to obtain an extraction jig used for the method. .

[0006]

Ingot die-cut method according to the present invention SUMMARY OF THE INVENTION, the opening of the ingot mold casting of molten metal
A jig body disposed over an edge, and the jig body
Formed from the opening edge toward the inside of the mold
Solidified while immersed in the molten metal cast in the mold.
Hook portion, and the open end at the rear end side of the jig body.
Formed from the edge along the outer wall of the mold, and
A fall-off prevention piece for fitting the opening edge of the mold into the mold;
Forklift forklift opened on the rear end wall of the jig body
Removal jig with an insertion port into which the tip of the workpiece is inserted
When casting molten metal into an ingot mold,
, So that the metal part is immersed in the molten metal in the ingot mold,
After the molten metal in the ingot mold is solidified in a state immersed hook portion of the take-out jig, a take-out jig forklift off
This is a method in which the solidified ingot is pulled out of the mold by lifting at the tip of the fork .

According to the present invention, there is provided an ingot removing jig comprising: a jig main body disposed over an opening edge of an ingot mold for casting a molten metal; and an opening edge provided on a tip end side of the jig main body. A hook portion formed toward the inside of the mold and solidified in a state of being immersed in the molten metal cast into the mold, and a rear end side of the jig main body portion along the mold outer wall from the opening edge portion. The jig body is provided with a drop-off preventing piece formed to fit the opening edge of the mold together with the hook portion, and an insertion port into which a fork tip of a forklift opened in a rear end wall of the jig body is inserted. It is a thing.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, when casting molten metal into an ingot mold, an extraction jig is arranged so that a part of the molten metal is immersed in the molten metal in the ingot mold. After solidifying the extraction jig in a partially immersed state, the extraction jig is lifted and the solidified ingot is extracted from the mold. For this reason, there is no need to turn the take-out jig upside down to perform ingot die cutting, which enhances operational safety and does not damage the ingot mold.

The ingot targeted in the present invention can be any molten metal ingot as long as the ingot removal jig can withstand its weight.
Preferably, it is a relatively light metal such as aluminum. In particular, when the recovered aluminum is melted to produce an aluminum ingot, equipment costs for die cutting can be reduced, which is the most preferable.

[0010]

[0011]

The ingot removing jig used in the ingot die removing method of the present invention includes: a jig main body disposed across an opening edge of an ingot mold into which a molten metal is cast; A hook portion formed on the distal end side from the opening edge to the inside of the mold and solidified in a state of being immersed in the molten metal cast into the mold; and the opening edge on the rear end side of the jig body. Formed from the part along the outer wall of the mold,
A drop-off preventing piece for fitting the opening edge of the mold together with the hook portion; and an insertion port into which a fork tip of a forklift opened in a rear end wall of the jig body is inserted.

[0013] The ingot removal jig is arranged so as to straddle the opening edge of the ingot mold, and is solidified in a state in which the hook portion is immersed in the molten metal. Since the mold is extracted from the mold, there is no need to turn the take-out jig upside down to remove the ingot, thereby improving work safety and not damaging the ingot mold. Further, since the ingot is connected to the take-out jig by the hook at the edge, the ingot itself can be easily separated from the take-out jig by being shifted from the hook after being cut out.

The fork of the forklift to be extracted from the mold by the jig for removing ingots may be a self-propelled forklift or a fork attached to a line for cutting.

[0015]

1 is an explanatory view showing the structure of an embodiment of an ingot removing jig according to the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a side view, and FIG. 1C is a bottom view. As shown in the figure, a jig main body arranged across the opening edge of the ingot mold having an insertion port (14) into which the fork tip of a forklift is inserted at the rear end of the ingot removal jig (10). There is (11). On the back surface of the jig body (11), a hook portion (12) formed on the front end side from the opening edge toward the inside of the mold, and a rear end side along the mold outer wall from the opening edge on the rear end side. The formed fall-off prevention piece
(13) are formed.

The hook (12) is bolted to the jig body (1).
It is attached to 1) and solidified while immersed in the molten metal cast into the ingot mold. The falling-off prevention piece (13) fits the opening edge of the ingot mold together with the hook part (12) to prevent falling off.

FIGS. 2A to 2D are explanatory views showing the operation of the ingot die-cutting method using the ingot removal jig shown in FIG. As shown in Fig. a, there is an ingot formwork (20) in which both ends along the longitudinal direction form an ingot having an increased thickness. Fig. 1 is located approximately at the center of the short side of this formwork (20).
Is fitted with the ingot removal jig (10) shown in FIG. Specifically, the opening edge of the ingot form is sandwiched between the hook portion (12) and the drop-off preventing piece (13). The hook portion (12) has substantially the same length as the reduced thickness of the central portion inside the ingot mold. After fitting the ingot removal jig (10), the molten aluminum (21) is cast.

As shown in FIG. 2B, the cast molten aluminum is allowed to cool and solidify. After sufficient solidification, as shown in Fig. C, the inlet (1) at the rear end of the ingot removal jig (10)
Insert the forklift fork (23) into 4) and put the solidified ingot (22) together with the ingot removal jig (10) into the formwork.
Extract from (20).

As shown in Fig. D, the extracted ingot (2
In 2), the ingot (22) is pressed against the horizontal member (24) passed horizontally, and the fall (23) is raised, so that the ingot (22) is displaced from the hook portion (12) and drops, thereby facilitating the fall. Can be separated from the removal jig (10).

[0020]

As described above, according to the present invention, it is possible to obtain an ingot die-cutting method that does not perform die-cutting to invert the top and bottom, which is dangerous and easily damages the ingot mold. There is an effect that a tool can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a configuration of an embodiment of an ingot removal jig according to the present invention, wherein FIG. 1A is a plan view, FIG.
The figure is a bottom view.

FIG. 2 is an explanatory view showing an operation of an ingot die-cutting method using the ingot removal jig shown in FIG.

[Explanation of symbols]

 (10)… Ingot removal jig, (11)… Jig body, (12)… Hook, (13)… Prevention piece, (14)… Fork slot, (15)… Bolt, (20) ... ingot formwork, (21) ... molten aluminum (molten metal), (22) ... ingot, (23) ... fork, (24) ... horizontal member,

Claims (2)

(57) [Claims] An opening of an ingot mold for casting a molten metal.
A jig body disposed over an edge, and the jig body
Formed from the opening edge toward the inside of the mold
Solidified while immersed in the molten metal cast in the mold.
Hook portion, and the open end at the rear end side of the jig body.
Formed from the edge along the outer wall of the mold, and
A fall-off prevention piece for fitting the opening edge of the mold into the mold;
Forklift forklift opened on the rear end wall of the jig body
Removal jig with an insertion port into which the tip of the workpiece is inserted
When casting molten metal into an ingot mold,
After the molten metal in the ingot mold is solidified with the hook part of the extraction jig immersed, the extraction jig is placed in the forklift.
An ingot die-cutting method, wherein a solidified ingot is pulled out of a mold by lifting the tip of the fork . 2. A jig main body which is arranged to straddle an opening edge of an ingot mold into which a molten metal is cast, and which is formed on a tip side of the jig main body from the opening edge to the inside of the mold. A hook portion solidified in a state of being immersed in a molten metal cast in a mold; and a rear end side of the jig body portion formed along the mold outer wall from the opening edge to the rear end side, and together with the hook portion, An ingot take-out comprising: a drop-off preventing piece for fitting an opening edge of a mold; and an insertion hole into which a forklift forklift opened on a rear end wall of the jig body is inserted. jig.