JPH072133Y2 - Hot water supply equipment for die casting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a hot water supply device for die casting in which a molten metal in a holding furnace is pumped up by a ladle to supply hot water into an injection sleeve.

<Prior Art and its Problems> Various types of water heaters for die casting have been proposed. As shown in FIG. 1, the swing arm 1 is swingably attached to the tip of the support arm 3, In the die casting hot water supply device A in which the ladle 2 is attached to the tip of the swing arm 1 so as to be capable of reversing and swinging, when the tip of the swing arm 1 is immersed in the molten metal 11, the molten metal penetrates into the inside of the ladle 2, Since the mechanism for reversing and swinging 2 becomes inoperable, the operation of the support arm 3 should be controlled by the detection signal output from the melt level detecting rod 12 provided at the tip of the swing arm 1. As a result, the tip of the swing arm 1 does not sink into the molten metal 11.

However, if the tip of the swing arm 1 is immersed in the molten metal 11 due to a failure of the molten metal surface detection mechanism, repair is required.

At that time, if the swing arm 1 is detached from the support arm 3 and repaired at another place, most of the connecting portion 18 between the support arm 3 and the swing arm 1 includes a sprocket for hanging a connecting shaft or a roller chain. It is very troublesome to remove and assemble because the parts of the swing arm 1 are incorporated and have a complicated structure.
However, there was a problem that the repair work had to be carried out in an unstable state while being exposed to the high temperature heat emitted from the holding furnace.

<Problems to be Solved by the Invention> The present invention has been made in view of such a conventional problem, and is a mechanism for oscillating the ladle in reverse when the tip end of the swing arm is immersed in the molten metal. When repairing, the swing arm tip part can be easily removed together with the ladle and the repair can be done at another place, and the part supporting the ladle can be exchanged as one unit product. It is another object of the present invention to provide a hot water supply device for die casting which can quickly restart hot water supply work.

<Means for Achieving the Object> The hot water supply device for die casting of the present invention which achieves the above object is
In a water heater for die casting in which a swing arm is swingably attached to a tip end portion of a support arm and a ladle is reversely swingably attached to a tip end portion of the swing arm, the swing arm is attached to the support arm side. The arm main body and the ladle mounting portion for mounting the ladle are removably attached to the arm main body, and a reversing shaft is pivotally attached to the ladle mounting portion. A sprocket is attached, a roller chain is hung over the sprocket and the sprocket arranged on the arm main body, and the roller chain is formed so as to be divided into the arm main body side and the ladle mounting portion side. It was done.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, A indicates a water heater according to the present invention, and B indicates
Indicates a holding furnace holding the molten metal 11, and C indicates a die casting machine.

In the hot water supply device A, the swing arm 1 is swingably attached to the tip end of the support arm 3 as in the conventional case, and the ladle 2 is attached to the tip end of the swing arm 1 so as to be able to reverse and swing. In the figure, 12 is a molten metal level detection rod for detecting the molten metal level 11a of the molten metal 11 in the holding furnace B, and 10 is an injection sleeve.

The swing arm 1 includes a ladle mounting portion 1a for mounting and supporting the ladle 2 and an arm main body portion mounted on the support arm 3 side.
1b, and the ladle mounting portion 1a is detachably connected to the arm main body portion 1b. That is, the arm main body portion 1b is formed in a hollow cylindrical shape having a required length, and a sprocket (not shown) for suspending the connecting shaft and the roller chain 5 is built in the upper end portion thereof as in the conventional case. Is swingably attached to the tip of the support arm 3, and joint flanges 7 and 8 are attached to the lower end of the arm main body 1b and the upper end of the ladle attachment portion 1a, respectively.
Is formed, and the joint flanges 7 and 8 are fastened with the connecting bolts 9, so that the ladle mounting portion 1a is detachably connected to the arm main body portion 1b.

The ladle mounting portion 1a is formed in a short tubular shape with a bottom so that the sprocket 6 for stretching the roller chain 6 can be built therein, and the reversing shaft 4 is pivotally mounted via a bearing 17. A ladle 2 is attached to the reversing shaft 4 and a sprocket 6 is attached, and a roller chain 5 is engaged and stretched over the sprocket 6 and the sprocket arranged on the arm main body 1b.

The roller chain 5 is formed by the connecting portion 15 and the two female screw rods 16 so as to be divided into the arm main body portion 1b side and the ladle mounting portion 1a side, and the connecting portion 15 and the two female screw rods 16 are formed.
Is arranged so as to be located in the vicinity of the working window hole 13 formed in the arm main body 1b.

Thus, the tip of the swing arm 1 is the molten metal of the holding furnace B.
When it is necessary to repair the ladle mounting portion 1a, for example, when it is immersed in 11, the lid 14 that closes the work window hole 13 previously formed in the arm main body portion 1b is opened and the roller chain 5 of the roller chain 5 is opened. Two
The two female screw rods 16 are removed to divide the roller chain 5 into the arm main body portion 1b side and the ladle attachment portion 1a side. After that, the connecting bolt 9 is removed to separate the ladle attachment portion 1a from the arm main body portion 1b.

<Effect of the Invention> Since the hot water supply device for die casting of the present invention is configured as described above,
The tip of the swing arm that supports the ladle needs to be repaired when repairing the mechanism for reversing and swinging the ladle, such as when the tip of the swing arm is immersed in the molten metal. Can be easily removed from the main body of the arm together with the ladle, and the repair can be done elsewhere.

Moreover, since the part supporting the ladle (laddle mounting part) can be replaced as a single unit product, even if the ladle mounting part fails, the part (laddle mounting part) can be replaced. The hot water supply work can be restarted quickly and only the ladle mounting part can be replaced without replacing the entire swing arm with a new one, which is very economical.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view of the same part, and FIG. 3 is a cutaway front view of the same part. In the figure A: Hot water supply device, B: Holding furnace, C: Die casting machine 1: Swing arm, 1a: Laddle mounting part, 1b: Arm main part 2: Ladle, 3: Support arm, 4: Inversion axis 5: Roller chain, 6: Sprocket

Claims (1)

[Scope of utility model registration request] 1. A hot water supply apparatus for die casting, wherein a swing arm is swingably attached to the tip of a support arm, and a ladle is swingably attached to the tip of the swing arm so that the swing arm is supported. It is composed of an arm main body part to be mounted on the arm side and a ladle mounting part to which a ladle is mounted, and is detachably attached to the arm main body part, and an inversion shaft is pivotally attached to the ladle mounting part. Attach the ladle and sprocket to the reversing shaft,
A hot water supply for die casting, characterized in that a roller chain is hung over the sprocket and a sprocket arranged on the arm main body, and the roller chain is formed so as to be divided into the arm main body side and the ladle mounting portion side. apparatus.