JPH0244921Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a molten metal transfer device for transferring and supplying molten metal in a melting furnace to the pots of a plurality of die-casting machines.

``Prior Art'' Conventionally, this type of molten metal transfer device has a rail fixed to the ceiling wall of a building along the side wall of the building, and a bucket for storing molten metal is suspended at the bottom of the rail. The die-casting machine is equipped with a transport vehicle, and is equipped with a gutter to guide the molten metal in the bucket into the pot when supplying the molten metal in the bucket to the pots of a plurality of die-casting machines installed in parallel along the rail. When the amount of molten metal in the pot decreases to a predetermined amount, the transport vehicle is configured to move and supply the metal.

However, when molten metal is supplied to the pot of a die-casting machine through a gutter, slag, etc. adheres to the gutter, and it is necessary to periodically remove the adhered slag, which is time-consuming and troublesome. It had the disadvantage of being. Another drawback was that the gutter became an obstacle when performing maintenance on the die-casting machine.

``Purpose of the present invention'' In view of the above-mentioned conventional drawbacks, the present invention enables the molten metal in the bucket to be directly supplied into the pot of the die-casting machine without providing a gutter in the pot of the die-casting machine, thereby eliminating the danger. To provide a molten metal transfer device which eliminates the troublesome work of removing slag etc. in a building, allows easy maintenance of a die-casting machine, and allows the die-casting machine to be arranged so that the inside of a building can be used effectively.

"Means for Achieving the Object of the Present Invention" The present invention provides a means for transporting molten metal into the pots of a plurality of die casting machines, which is equipped with a transfer vehicle having a bucket that runs on rails to transfer and supply molten metal in a melting furnace. A transfer device capable of moving the bucket to directly supply molten metal into a pot of a die-casting machine when the transfer car stops at a position of a die-casting machine supplying molten metal to the transfer car. It is characterized by having the following.

"Embodiments of the present invention" The present invention will be described in detail below with reference to embodiments shown in the drawings.

In the embodiments shown in FIGS. 1 to 4, 1 is a rail, and this rail 1 runs along the ceiling wall 2 of the building from the installation position of the melting furnace 3 to the side wall 4 of the building while maintaining a predetermined width of space. It is fixed along the side wall 4 so as to surround a plurality of die casting machines 5 arranged in parallel. Incidentally, limit switches 6 are attached to the rail 1 at the installation positions of the respective die-casting machines 5, which correspond to the positions of the respective die-casting machines.

Reference numeral 7 denotes a transfer vehicle equipped with a bucket 8 that runs on the rails 1 to transfer and supply the molten metal in the melting furnace 3, and this transfer vehicle 7 has a vehicle body 9 that is movably suspended from the rails 1; The vehicle body 9 is provided with a bucket support device 10, which is movable in a direction orthogonal to the running direction, and has the bucket 8 at its lower part.

The car body 9 has a lip groove shape with an opening facing downward, and includes a car body main body 12 having a length that allows the bucket support device 10 to move the bucket cart 8 to a position above the pot 11 of the die-casting machine 5, and an upper surface of the car body main body 12. wheels 1 fixed to the rails 1 and supporting the vehicle body 12;
3 and a U-shaped wheel mounting plate 14. Note that this wheel mounting plate 14 has
An operating piece 15, which is attached to the rail 1 and which operates each of the limit switches 6, is fixed.

The bucket support device 10 is attached to the vehicle main body 12.
A frame body 16 whose upper part is inserted and whose left and right sides, bottom face and upper front face are covered, and a guide cylinder 17 which is erected at approximately the center of a bottom plate 16a inside this frame body 16.
The bucket 8 is attached to the lower end inserted into the guide tube 17 so as to be rotatable with the arms 18, 18 fixed to both sides of the bucket 8.
an abutment plate 2 having a support arm 20a pivotally supported at
0 is fixed to the sliding shaft 21 and the contact plate 20 fixed to the lower end of the sliding shaft 21 provided on the bottom plate 16a in the frame 16 are moved up and down to move the bucket 8 up and down. It is comprised of a hydraulic cylinder 22 as a bucket lifting device that can move the bucket, and a bucket rotating device 23 that can rotate the bucket 8 provided in the frame 16.

A support plate 24 for supporting the frame 16 is fixed to the upper part of the side plate 16b of the frame 16. In addition, the bucket rotation device 23 is provided with a mounting plate 25 at the upper end of the sliding shaft 21, a motor 27 equipped with a reduction gear 26 is mounted on the mounting plate 25, and a rotary arm is attached to the drive shaft of the reduction gear 26. At the same time, a protruding piece 29 is formed by bending the tip of one arm 18 fixed to the bucket 8 outward and tilting it forward at approximately 30 degrees, so that the protruding piece 29 and the rotation When the rotary arm 28 is connected to the arm 28 by a connecting arm 30 and the rotary arm 28 is rotated to a downward position, the connecting rod 30 moves downward and the bucket 8 tilts forward about the shaft 19. It is configured as follows.

31 is a transport vehicle 7 provided in the transport vehicle 7;
This drive device 31 has an electric motor 3 fixed to the upper surface of the vehicle main body 12.
2, and a friction wheel 2 attached to the drive shaft 33 of the electric motor 32 and in contact with the lower surface of the rail 1.
It is composed of 4.

Reference numeral 35 denotes a moving device capable of moving the bucket 8 provided on the transfer vehicle 7 so as to directly supply molten metal into the pot 11 of the die-casting machine 5; A hydraulic cylinder 37 having a hydraulic unit 36 fixed inside the hydraulic cylinder 12, and a piston 3 sliding inside the hydraulic cylinder 37, the tip of which is fixed to a front plate 16c that covers the upper front surface of the frame 16.
It consists of 8.

Reference numeral 39 denotes trolley wires, three for power and one for signals, which are wired along the rail 1 with gaps in the ceiling wall 2. This trolley wire 39 is connected to a control device ( (not shown).

Reference numeral 40 denotes a pantograph that comes into contact with the trolley wire 39 fixed to the vehicle body 9 of the transfer vehicle 7.

As shown in FIG. 1, the molten metal transfer device 41 configured as described above is for transferring and supplying molten metal in the melting furnace 3 to the pots 11 of a plurality of die casting machines 5. When the molten metal in the pot 11 of the die-casting machine 5 decreases to a predetermined amount, a sensor detects this, and a control device (not shown) is configured to drive the transfer vehicle 7 to supply the molten metal into the pot 11 of the die-casting machine 5 where the molten metal has decreased. ) is installed. Further, the transfer vehicle 7 is kept on standby at a position above the melting furnace 3.

In this state, when replenishing molten metal in the melting furnace 3 to the pot 11 of the die-casting machine 5 where the molten metal has decreased, first operate the hydraulic cylinder 22 as a bucket lifting device to move the bucket 8 into the melting furnace 3. The bucket 8 is lowered until it is approximately halfway into the molten metal.

Next, when the bucket rotation device 23 is operated, the bucket 8 is tilted forward, molten metal flows into the bucket 8, and the bucket 8 returns to its original horizontal state, and the interior of the bucket 8 is filled with molten metal. .

Next, operate the hydraulic cylinder 22 as the bucket lifting device again to bring the bucket 8 back to its original position.
to rise. After the bucket 8 completes its ascent, the drive device 31 provided in the transfer vehicle 7 is driven to cause the transfer vehicle 7 to travel. Thereafter, when the operating piece 15 operates the limit switch 6 at the position of the die-casting machine 5 targeted by the transport vehicle 7, the drive device 31 is stopped and the transport vehicle 7 is also stopped.

Next, the moving device 35 is activated, and the bucket support device 1 is activated.
0 is pushed forward and moved inside the vehicle body 12. For this reason, Bucket 8 is die-casting machine 5.
Move to the position above the pot 11.

Next, after the bucket 8 completes its movement, the hydraulic cylinder 22 as a bucket lifting device is activated to lower the bucket 8 to the height of the pot 11, and then the bucket rotating device 23 is activated, and the bucket 8 is tilted. Then, the molten metal in the bucket 8 is poured into the pot 11, and it automatically returns to its original horizontal state. As a result, molten metal is supplied into the pot 11, and the reduction alarm to the control device is canceled.

Next, the hydraulic cylinder 22 serving as the bucket lift device is operated again to raise the bucket tort 8 to its original position, and the moving device 35 is activated to raise the bucket tort 8 to its original position. is operated to retract the bucket support device 10 to its original position.

Next, the drive device 31 is driven to drive the transport vehicle 7, and the transport vehicle 7 is returned to a position above the melting furnace 3 and kept on standby until the next replenishment. In addition, other die casting machines 5
The supply to the pot 11 may be performed in the same manner as described above.

"Different Embodiments of the Present Invention" Next, different embodiments of the present invention shown in FIGS. 5 to 7 will be described. In the description of these embodiments, the same components as those of the embodiments of the present invention will be designated by the same reference numerals and redundant explanations will be omitted.

The main difference between the embodiment shown in FIG. 5 and the embodiment of the present invention is that a moving device 35 capable of moving the bucket support device 10 is attached to the vehicle main body 12.
A threaded rod 42 rotatably provided and this threaded rod 4
a motor 43 attached to the vehicle main body 12 capable of rotating the bucket support device 10;
In this way, the mobile device 35A
Even if it is constructed, the same operation and effect as the embodiment of the present invention can be obtained.

The main difference between the embodiments shown in FIGS. 6 and 7 from the embodiment of the present invention is that the bucket support device 10, which is movably provided on the vehicle body 9, is equipped with rollers 45 for easy movement. In that point,
By configuring the bucket cart support device 10 in this way, the bucket cart 8 can be moved smoothly.

"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.

(1) A transfer vehicle equipped with a bucket that travels on rails to transfer and supply molten metal in a melting furnace into the pots of multiple die-casting machines is stopped at the position of the die-casting machine to which the transfer vehicle supplies molten metal. Sometimes, the bucket is equipped with a moving device capable of moving the bucket so as to supply molten metal directly into the pot of the die-casting machine,
The molten metal for feeding stored in the bucket can be directly fed into the pot of the die casting machine. Therefore, there is no need to provide a gutter in each pot of the die-casting machine, as is the case in the past.

(2) According to (1) above, there is no need to provide a gutter in the pot of the die-casting machine, so there is no need for troublesome and dangerous maintenance such as removing slag that adheres to the gutter as in the past. Furthermore, maintenance of the die-casting machine can be easily performed.

(3) According to (1) above, the rail can be positioned along the side wall of the building. Therefore, the die-casting machine can be located so that the inside of the building can be used effectively.

(4) It is only necessary to equip the transport vehicle with a movement mechanism, so
It can be made easily and inexpensively.

(5) Due to the above (4), it can be easily done, so conventional ones can also be easily modified.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention in use, Fig. 2 is a side view of the transport vehicle, Fig. 3 is a front view, Fig. 4 is an enlarged view of the main parts, Fig. 5, FIGS. 6 and 7 are explanatory diagrams showing different embodiments of the present invention, respectively. 1...Rail, 2...Ceiling wall, 3...Melting furnace,
4...Side wall, 5...Die casting machine, 6...Limit switch, 7...Transfer vehicle, 8...Bucket, 9...Car body, 10...Bucket support device, 1
1... Pot, 12... Vehicle body, 13... Wheel, 14... Wheel mounting plate, 15... Operating piece, 1
6... Frame body, 16a... Bottom plate, 16b... Side plate,
16c...Front plate, 17...Guide tube, 18...
Arm, 19... shaft, 20... contact plate, 21...
Sliding shaft, 22...Hydraulic cylinder as a bucket lifting device, 23...Bucket rotation device, 24...
...Support plate, 25...Mounting plate, 26...Reduction gear,
27...Motor, 28...Rotating arm, 29...
Projection piece, 30... Connection arm, 31... Drive device, 32... Electric motor, 33... Drive shaft, 3
4...Friction wheel, 35, 35A...Movement device, 36
... Hydraulic unit, 37 ... Hydraulic cylinder, 3
8... Piston, 39... Trolley wire, 40...
...pantograph, 41...molten metal transfer device,
42...Threaded rod, 43...Motor, 44...Nut, 45...Roller.

Claims (1)

[Scope of utility model registration request] A rail fixed to a building such as a ceiling wall at an upper position on the pot side of a plurality of die-casting machines, a car body suspended from the rail so as to be able to run freely, and a car body that runs to connect the pots of the plurality of die-casting machines. a drive device that can be stopped at each position; and a bucket stop that is attached to the car body and that is movable to the pot side in a direction perpendicular to the running direction of the car body when the car body stops at the pot position of the die-casting machine. A molten metal transfer device comprising: a support device; and a bucket that can directly supply molten metal to the pots of the plurality of die-casting machines provided at the bottom of the bucket support device.