JPH0692025B2 - Molten metal distribution equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for distributing molten metal in a melting furnace to a molding machine manual furnace, for example.

[Prior Art] Conventionally, for example, in an automobile parts factory or the like, as shown in FIG.
A hand-held furnace 2 is provided in the vicinity of. Also, the modeling machine 1
A smelting furnace 3 and a holding furnace 5 connected to the smelting furnace 3 via a sluice valve 4 are provided apart from the hand furnace 2.

Then, in a factory having such equipment, first, the ingot and the like are melted in the melting furnace 3. The material of the melting furnace 3 is also adjusted. And when the dissolution is complete,
The gate valve 4 is opened and the molten metal (molten metal) is transferred to the holding furnace 5.
The holding furnace 5 holds the metal melted in the melting furnace 3.

By the way, each hand furnace 2 holds the molten metal for casting into the molding machine 1, but when the molten metal in the hand furnace 2 becomes small,
The molten metal in the holding furnace 5 is transferred to a ladle 7, and the ladle 7 is conveyed to a permit furnace 2 by a forklift 6 through a passage 8 to replenish the molten metal.

[Problems to be Solved by the Invention] However, such a conventional hot water distribution means has the following problems.

(1) Since the passage 8 is used to carry high temperature molten metal,
There is a high risk of collision.

(2) Since the molten metal is manually handled, spillage of the molten metal is likely to occur due to a work mistake.

(3) Since it is not possible to move many forklifts 6 through the passage 8, there is a limit to the amount of molten metal that can be conveyed, and productivity cannot be increased.

The present invention has been made in order to solve these problems, and it is possible to distribute molten metal by using a gutter without using a means such as a forklift to distribute the molten metal. The purpose is to provide a device.

[Means for Solving the Problems] Therefore, the molten metal hot water distribution apparatus of the present invention includes a molten metal supply source for supplying the molten metal and a first gutter for receiving the molten metal from the molten metal supply source. , A second gutter which is inclined from the first gutter and is connected to the first gutter, and a molten metal supply part which receives the molten metal supplied through the second gutter,
It is characterized in that a pumping linear motor for pumping the molten metal in the first gutter along the second gutter is provided.

[Operation] In the molten metal distributor of the present invention described above, the molten metal is supplied from the molten metal supply source to the first gutter, but the molten metal supplied to the first gutter is The metal is driven by a natural flow or a hot water linear motor.

Further, the molten metal is supplied to the portion to be supplied with the molten metal by pumping the molten metal along the second gutter which is inclined by a pump linear motor.

[Examples of the Invention] Hereinafter, the present invention will be specifically described with reference to the illustrated examples. 1 to 3 show a molten metal hot water distributing apparatus as an embodiment of the present invention. FIG. 1 is a schematic plan view thereof, FIG. 2 is a schematic side view thereof, and FIG. FIG. 3 is a sectional view taken along the line III-III in FIG. 1.

In FIGS. 1 and 2, 3 is a melting furnace as a molten metal supply source, and a holding furnace 5 is connected to the melting furnace 3 via a gate valve 4 at a position lower than the melting furnace 3.

Further, at a position lower than the holding furnace 5 (lower part of the passage),
A first gutter 10 is provided substantially horizontally, and an end portion of the first gutter 10 is connected to a holding furnace 5 via a sluice valve 9.

Further, branch gutters 11 as second gutters are branched at various places of the first gutter 10, and each branch gutter 11 is inclined upward from the first gutter 10 as shown in FIG. Has branched to.

An end gutter 12 arranged substantially horizontally is connected to the upper end of each branch gutter 11.

By the way, at various locations below the bottom surface of the first gutter 10 (at various locations according to the length of the gutter), there is a hot water supply linear motor for driving the molten metal in the first gutter 10 in the direction of arrow a in FIG. 13 is arranged, and below the bottom surface of each branch gutter 11, there is arranged a pumping linear motor 14 that pumps the molten metal in the first gutter 10 along the branch gutter 11 to the end gutter 12 side. The linear motors 13 and 14 are of induction type, for example.

Further, an elevator rivet 16 as a ladle lifter for raising and lowering the ladle 15 is arranged near the end of each terminal gutter 12, but the ladle 15 of the elevator rivet 16 is not shown. A drive mechanism is used to move up and down along the post 17 so that the ladle 15 has its receptacle slightly lower than the end opening level of the terminal gutter 12 at its lowermost position. Further, a hand-held furnace 2 as a portion to be supplied with the molten metal is provided near the elevator rivet 16, and the ladle 15 is provided.
Is located at the highest position above the receptacle of the hand furnace 2. As a result, the molten metal from the terminal gutter 12 is vertically conveyed by the elevator rivet 16 to the manual furnace 2. That is, the elevator rivet 16 covers the lift of the pump linear motor 14.

Further, a gutter molten metal level detector 18 for detecting the liquid level of the molten metal in the first gutter 10 is provided, and when the liquid level of the molten metal in the first gutter 10 falls below a set value. The sluice valve 9 is opened.

Further, a manual furnace molten metal level detector 19 for detecting the liquid level of the molten metal in the manual furnace 2 is provided.
When the liquid level of the molten metal inside falls below the set value, the molten metal linear motor 13 and pump linear motor 14 are turned on to drive the molten metal along the first gutter 10 and pump it along the branch gutter 11. It has become. At this time, the ladle 15 of the elevator rivet 16 is at the lowest position.

Although the first gutter 10 is for transporting the molten metal (molten metal) as described above, it also serves as a holding furnace for accumulating the molten metal, and therefore the molten metal in the first gutter 10 is The first gutter 10 is provided with a heater (not shown) so that the temperature of the first gutter 10 does not decrease.

A modeling machine 1 is provided near the hand furnace 2.

With the above-described configuration, an ingot or the like is put into the melting furnace 3, and after melting this, the sluice valve 4 is opened appropriately to bring the molten metal into the holding furnace 5, and the sluice valve 9 is opened. Molten metal is supplied from the holding furnace 5 into the first gutter 10. This supply is performed until the first gutter 10 reaches the set level.

Then, when the liquid level of the molten metal in the hand furnace 2 falls below the set value, the signal from the hand furnace melt level detector 19 causes the linear motor 13, the pump linear motor 14, and the elevator tribe 16 to operate. Be punished. This makes the first gutter 10
The molten metal inside is driven along the first gutter 10 in the direction of the arrow a, further pumped along the branch gutter 11 as shown by the arrow b, and then passes through the end gutter 12 to the ladle at the lowest position. Poured into 15. After that, the ladle 15 is raised and the molten metal is charged into the hand furnace 2. As a result, the molten metal is replenished to the hand furnace 2. After such replenishment, the hot-water supply linear motor 13, the pumped-up linear motor 14, and the elevator rivet 16 are deactivated. The elevator rivet 16 puts the ladle 15 in the lowest position in the deactivated state. The pumping linear motor 14 is operated only when the pumping liquid is transferred to the elevator tribe 16.

When the liquid level of the molten metal in the first gutter 10 falls below the set value by appropriately supplying the molten metal to the manual furnace 2 in this way, the operation of the gutter molten metal level detector 18 causes the partitioning. The valve 9 opens and molten metal from the holding furnace 5 flows into the first gutter.
Supplied within 10 until set level. In this way, the liquid level of the molten metal in the first gutter 10 is maintained at a constant level.

When the liquid level of the molten metal in the holding furnace 5 is lowered, the sluice valve 4 is opened and the molten metal is supplied from the melting furnace 3.

Since the first gutter 10 can be provided in the lower portion of the passage as described above, a forklift for transporting the molten metal is not required, thereby eliminating the risk of collision.

In addition, since the flow velocity of the molten metal in the first horizontal gutter 10 can be forcibly increased by the hot water feeding linear motor 13, a large amount of molten metal can be conveyed with a small gutter. However, this hot-water supply linear motor is not necessarily provided, and its function may be replaced by a natural flow of the molten metal in the gutter.

Furthermore, by combining the pumping linear motor 14 and the elevator tribe 16, the molten metal can be raised.

That is, according to this molten metal hot water distribution apparatus, the following effects and advantages are obtained.

(1) The pumped water can be safely transported.

(2) The handling of pumping water can be automated to prevent human accidents caused by handling mistakes.

(3) The passage can be used for purposes other than pumping and feeding.

(4) It is possible to improve the productivity by raising the capacity of pumping hot water to the hand furnace.

If the position of the hand-held furnace is low, the elevator rivet may not be provided.

[Effects of the Invention] As described in detail above, according to the molten metal hot water distribution apparatus of the present invention, the molten metal supply source for supplying the molten metal and the first gutter for receiving the molten metal from the molten metal supply source. And a second gutter which is inclined from the first gutter and is connected to the first gutter, and a molten metal supply part which is supplied with molten metal through the second gutter. The molten metal in the gutter of No. 1 is
With a simple structure of installing a pumping linear motor that pumps along the gutter, it is possible to distribute hot water using the gutter without using a means such as a forklift, so the safety when distributing hot water increases, Further, there is an advantage that the molten metal can be easily handled.

[Brief description of drawings]

1 to 3 show a molten metal hot water distributing apparatus as an embodiment of the present invention. FIG. 1 is a schematic plan view thereof, FIG. 2 is a schematic side view thereof, and FIG. FIG. 3 is a sectional view taken along the line III-III in FIG. 1, and FIG. 4 is a schematic diagram for explaining a conventional molten metal distribution procedure. In the figure, 2 ... a hand-held furnace as a portion to be supplied with molten metal,
3 ... Melting furnace as a molten metal supply source, 4 ... Gate valve,
5 ... holding furnace, 9 ... gate valve, 10 ... first gutter, 11 ...
Branch gutters as the second gutter, 12 …… End gutter, 13 …… Sending water linear motor, 14 …… Lifting linear motor, 15 …… Ladle, 16…
… Elevator tribe, 17 …… Post, 18 …… Gutter molten metal level detector, 19 …… Hand furnace molten metal level detector. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A molten metal supply source for supplying molten metal, a first gutter for receiving the molten metal from the molten metal supply source, and an ascending slope from the first gutter connected to the first gutter. And a second trough for supplying molten metal through the second trough, and a pumping linear motor for pumping the molten metal in the first trough along the second trough. A hot water distribution device for molten metal, wherein: