JPH043714Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a pouring device for supplying molten metal into a mold.

BACKGROUND ART Conventionally, for example, in centrifugal casting, a gutter was inserted into a rotating mold, and molten metal was poured into the mold from the gutter while being pulled out in the axial direction of the mold.

Problems that the invention aims to solve: However, with the conventional configuration, the molten metal flows directly into the mold from the gutter, which causes the force of the molten metal to be strong, causing the coating on the mold to become rough and causing the coating to bite into the iron pipe. It was hot. Furthermore, since the gutter moves, the flow rate of the molten metal poured into the mold from the gutter fluctuates, and the molten metal level in the mold fluctuates, causing a problem in that a hot melt boundary occurs in the casting. Furthermore, since the scum floating on the surface of the hot water in the ladle is directly cast, there is a problem in that the cast product is caked with scum.

The present invention solves the above-mentioned problems and aims to provide a hot water pouring device that does not cause coating bites, hot water spots, or plaque bites.

Means for Solving the Problems In order to solve the above problems, the present invention provides a trough that is inserted into and removed from the mold in the axial direction, and a sump that stores molten metal at the tip of the gutter that pours the molten metal into the mold. established a department,
This pool is provided with a spout that opens in the direction in which the gutter is pulled out.

Function In the above configuration, when pouring molten metal into the mold, the gutter is inserted into the mold, and the gutter is pulled out in the axial direction of the mold while supplying the molten metal to the gutter. At this time,
The molten metal flows from the gutter into the pool and is stored in the pool, thereby absorbing the flow energy given by gravitational acceleration as it flows down the inside of the gutter. The molten metal stored in the sump is poured from the pouring port toward the direction in which the gutter is drawn out at a flow rate that is increased by the water head pressure in the sump. Therefore, the flow rate of the molten metal poured toward the mold is appropriately adjusted, and the molten metal is poured gently into the mold, thereby preventing damage to the coating of the mold. In addition, since the flow rate of the molten metal is constant given by the water head pressure, the flow rate of the molten metal poured from the spout is constant, and by pouring the molten metal in the direction of pulling out the gutter, it is possible to Creates hot water to prevent hot water from forming in the casting. In addition, in the sump, the scum in the molten metal floats to the surface of the molten metal, and only healthy molten metal is poured to prevent scum buildup.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. In FIG. 1, a trolley 1 reciprocates in the axial direction of the mold 2, and the trolley 1 carries the mold 2.
A gutter 3 that is inserted into and removed from the tank is provided. A ladle 4 is placed on the trolley 1 at the base end of the gutter 3, and a weir 5 is provided at the tip of the gutter 3. This weir 5 includes a sump 7 formed with a wide mouth to store molten metal 6, and a sump 7.
The gutter 3 is provided with a spout 8 that communicates with the bottom of the gutter 3 and opens in the direction in which the gutter 3 is pulled out.

Hereinafter, the effects of the above configuration will be explained. First, when pouring into the mold 2, the cart 1 is moved in a direction approaching the mold 2, the gutter 3 is inserted into the mold 2, and the weir 5 is positioned at the far end of the mold 2.
Then, while supplying molten metal 6 from the ladle 4 to the gutter 3, the cart 1 is moved in a direction away from the mold 2, and the gutter 3 is pulled out in the axial direction of the mold 2. At this time, the molten metal 6 flows from the gutter 3 into the pool 7 and is stored in the pool 7, thereby absorbing the flow energy given by gravitational acceleration while flowing down the inside of the gutter 3. Absorbed. And the hot water pool part 7
The molten metal 6 stored in the molten metal 6 is poured from the pouring port 8 toward the direction in which the trough 3 is drawn out at a flow rate that is increased by the water head pressure in the sump 7. Therefore, the flow rate of the molten metal 6 poured toward the mold 2 is
Since the molten metal 6 is properly adjusted and is gently poured into the mold 2, damage to the coating of the mold 2 can be prevented. Furthermore, since the flow rate of the molten metal 6 is constant given by the head pressure, the flow rate of the molten metal 6 poured into the mold 2 from the pouring port 8 is constant, and the flow rate of the molten metal 6 is constant given by the head pressure.
By pouring the molten metal 6 in the direction of drawing out the molten metal, molten metal is intentionally created to prevent the occurrence of molten metal. Moreover, in the sump 7, the scum contained in the molten metal 6 floats to the surface of the molten metal, so that only healthy molten metal 6 is cast, and scum buildup is prevented.

Effects of the invention As described above, according to the invention, by providing a water reservoir at the tip of the gutter and opening the pouring spout in the direction in which the gutter is pulled out, the water head pressure at the water reservoir is increased. The molten metal can be poured gently to prevent damage to the mold coating.
In addition, the flow rate of the molten metal poured from the pouring port is determined by the water head pressure, so that the flow rate is kept constant, and by pouring the molten metal in the direction in which the gutter is pulled out, the molten metal is intentionally returned. By creating this, it is possible to prevent hot spots from forming in the casting. Furthermore, by floating the scum to the surface of the molten metal in the sump, only healthy molten metal can be poured and scum buildup can be prevented.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention. 2...mold, 3...gutter, 5...weir, 6...molten metal, 7...pool, 8...pouring spout.

Claims (1)

[Scope of utility model registration request] A trough that is inserted into and removed from the mold in the axial direction and pours molten metal into the mold is provided with a sump for storing the molten metal at the tip of the trough. A pouring device characterized by having a sprue.