JPS605387B2 - automatic water heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic hot water supply device for a die casting machine.

In the automatic flaw feeding device of the subsidiary die-casting machine, a single diamond with a spouted top was used, and the molten metal inside the diamond was flowed out from a part of the closed upper end of the sloped diamond.

In this case, the molten metal flows out from the closed part of the diamond, where the temperature has dropped, and the molten metal sometimes collects in this closed part in a solid state. For this reason, the metal solidified in the closed part may flow out of the press together with the molten metal, which may be dangerous or reduce the quality of the injection product. In order to eliminate this drawback, we installed an inlet and an inlet for the molten metal on the bottom of the diamond, which is closed at the top, and installed a vertical valve stem that was suspended from above inside the diamond and could move up and down. A system was devised in which the molten metal inlet and outlet could be opened and closed using metal mesh, but this had the disadvantage that the valve stem and the molten metal inlet and outlet were sealed with metal mesh, making it impossible to achieve a sufficient seal.

Therefore, the present applicant proposed a diagonal that opens at the bottom and is partially equipped with an on-off valve.

This diamond is immersed in the burnt area with the on-off valve open to the atmosphere, and when the on-off valve is closed and the diamond is lifted up, the communication with the outside air is cut off, and the rising sun is held within the stone. In this state, the molten metal is carried to the Rakuyo injection port of the injection sleeve and when the on-off valve is opened, the molten metal falls due to atmospheric pressure and its own weight.
Hot water is supplied into the injection sleeve. This type of structure is excellent in eliminating the disadvantage of metal touch in opening and closing operations by the valve stem, but since a single diamond is used to perform the flawing work, it takes time to go back and forth between the diamonds. , there was a loss in hot water supply time.

The present invention was made in view of the above circumstances,
The embodiments shown in the drawings will be described below.

FIG. 1 explains one embodiment of the present invention. In the figure, the automatic moat feeding device, which is designated as a whole by reference numeral 1, is assembled with reference to a frame 3 constructed at the upper end of a support column 2 fixed to the floor surface. It is being At both ends of the frame 3 are bosses 4,
5 is fixed, a shaft 6 is rotatably supported on each boss 4, 5, and chain wheels 7, 8 are fixed to the upper and lower ends of each rotating shaft 6, respectively.

Chains 9 and 1 are connected between the upper chain wheels 7, 7 and the lower chain wheels 8, 8, respectively.
0 is displayed. That is, endless chains 9, 10 wound around chain wheels 7, 7, 8, 8 provided apart from each other are placed between the upper part of the furnace 22 and the upper part of the hot water supply port 23a of the coin sleeve 23 in the horizontal direction. It was installed so that it could be rotated freely.
Actuator units 11 and 12 are attached to each chain 9 and 10 at symmetrical positions.

The actuator units 11 and 12 each have a side plate 13 on its side, and on the outer side of each side plate 13 are a pair of fixed upper and lower arms 14, 14, and a rotatable arm 15,
15 is attached at one end, and the end of each arm is rotatably attached to the chains 9 and 10, respectively. The actuator units 11 and 12 are formed into a cylindrical shape, and an electric motor (not shown) is housed in the upper part thereof, and a deceleration mechanism for decelerating the output of the electric motor to a desired value is housed therein.

The elevating shaft 16 is moved up and down by this speed reduction mechanism.
And a guide shaft 17 projects vertically downward. The two shafts 16 and 17 are provided to prevent rotation.

The lower ends of the lifting shaft 16 and the guide shaft 17 are formed in a cylindrical shape,
Moreover, a diamond 18 having a Sekiguchi part 18a is fixed to the lower part.

The upper end of the canopy 18 is closed by a lid part 18b, and a part of the lid plate 18b has an on-off valve 1 that opens and closes the connection between the interior space of the canopy 18 and the atmosphere or a vacuum device.
9 is installed.

On the other hand, an electric motor 21 for driving the chain wheels 7 and 8 is provided at one end of the frame 3, that is, on the upper surface on the boss 5 side via a bracket 20. Therefore, electric motor 2
When actuator unit 1 is driven, chain wheels 7 and 8 rotate, chains 9 and 10 are driven, and actuator unit 1 is driven.
1 and 12 can be moved. Then, a set of two of these diamonds 18, 18 arranged in symmetrical positions are placed in the furnace 2.
The lateral movement can be stopped alternately at a position above 2 and above a hot water supply port 23a of the coin sleeve 23. Moreover, what is indicated by the reference numeral 22 is a furnace, and the inside thereof is filled with molten metal.

On the other hand, a molten metal supply port 23a of the coin sleeve 23 is located symmetrically to the furnace 22, and an injection cylinder 25 having a plunger 24 is arranged on the side of the rust-corrosion sleeve 23.

By the way, Fig. 2 shows the actuator units 11 and 12.
This explains the power supply method for the electric motors of the actuator units 11 and 12 that move.Since the electric motors installed in the moving actuator units 11 and 12 cannot be moved by dragging the wiring, if either actuator unit 11 or 12 A contact position consisting of brush contacts 26 and 27 is fixedly provided, which contacts the power supply contact of the electric motor when the motor reaches the stop position.

Next, the operation of this embodiment configured as above will be explained. First, the electric motor 21 is operated and stopped when one actuator unit 11 comes to a position facing the furnace 22.

At this time, the other actuator unit 12 is in a position facing the flaw supply port 23a of the coin sleeve 23. In this state, the electric motor of each actuator unit 11 receives power from the brush contact 27, starts rotating, and lifts the elevator shaft 1.
6. The guide shafts 17 are lowered together and the shaft 18 is
Descend inward. At this time, the on-off valve 19 is open,
When the molten metal 18 enters the melting field, molten metal enters from the closed part 18a at the lower end until the liquid level is the same as that of the molten metal in the furnace. At this time, the on-off valve 19 is closed to cut off the connection to the atmosphere, and at the same time the electric motor is reversed,
Stay away from 2. In this state, the chamber 18 is filled with several shots worth of molten metal. Eventually, Hishiyaku 18
When it reaches the upper limit position, the electric motor 21 is rotated again, moves to the actuator unit position indicated by numeral 12, and stops.

Then, power is supplied to the built-in electric motor from the brush contact 26, and the shield 18 is lowered, and its entrance part 18a is inserted into the molten metal supply port 23a of the coin sleeve 23, and at the same time, the on-off valve 19 is turned on to release the molten metal corresponding to one shot. is opened and closed until it is fed into the mirror-containing sleeve. Thereafter, the injection cylinder 25 is activated, and the plunger 24 performs a blocking operation. When one injection operation is completed, molten metal for the next shot is supplied in the same manner as described above.

When the molten metal is supplied several times in this manner, the inside of the cypress becomes empty, the electric motor rotates in reverse, and the molten metal 18 separates from the coin sleeve 23.

During this time, the other stone is filling the furnace 22 with molten metal.

Then, when the electric motor 21 rotates again, the positions of the diamonds are switched and the same operation as described above is repeated. In this way, each time the two diamonds are moved laterally, they are stopped at a position facing the furnace or the sleeve, and molten metal can be filled into the diamonds and supplied to the rusted sleeve by simply opening and closing the valve. can perform actions. In addition, since no hydraulic pressure is used at all, and an electric motor is used as the drive source, it is possible to prevent the stone from falling due to oil leaks, as would be the case when hydraulic pressure is used, and reliable operation can be ensured.

As is clear from the above description, it is an object of the present invention to provide an automatic water supply device that can easily supply hot water, shorten the time it takes to supply hot water, and eliminate the need to move a water bottle each time hot water is supplied. Can be done.

Further, according to the present invention, an endless chain wound around chain foils provided apart from each other is provided so as to be rotatable in the horizontal direction between the upper part of the furnace and the upper part of the hot water supply port of the mirror-included sleeve, An actuator unit was attached to each symmetrical layer of this chain via an arm, and a diamond was attached below the actuator unit so that it could move up and down. It is possible to horizontally move the sleeve and the upper part of the hot water supply port in a substantially straight line, that is, in a substantially shortest distance.

Therefore, compared to the known method in which the diamond moves in a large circle in the horizontal direction, the movement time of the diamond is relatively short, the temperature drop of the molten metal within the groove is correspondingly small, and the molten metal There is also little oxidation on the surface. In addition, the floor space required for the movement of the locust is relatively small, and the installation space for the entire automatic wound dispensing device is also small. Of course,
When hot water is being supplied into the senikomi sleeve from one diaphragm, the molten metal in the furnace can be pumped out using the other diaphragm, and one diaphragm can be returned from the position of the kengome sleeve to the furnace position. During this time, the other diamond can be moved from the furnace position to the cash sleeve position, thereby shortening the feeding cycle and improving efficiency.

Further, the device can be relatively simple.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is an overall perspective view, and FIG. 2 is an explanatory diagram of a power supply method. 1. ．． ...Automatic wound feeding device, 3...Frame, 4
...Boss, 7, 8...Chain foil, 9,1
0... Chain, 11, 12... Actuator unit, 16... Elevating axis, 18... Hishiyaku, 19... Opening/closing valve, 21... electric motor, 2
2... Furnace, 23... Money sleeve, 25.
...Injection cylinder. Figure 1 Figure 2

Claims (1)

[Claims] 1. An endless chain wrapped around chain foils set apart from each other is provided so as to be rotatable in the horizontal direction between the upper part of the furnace and the upper part of the hot water supply port of the casting sleeve, and arms are installed at symmetrical positions on each chain. Attach the actuator unit through the actuator unit, and under each actuator unit, install a diamond with a closed top, an inlet/outlet for molten metal on the bottom, and an on-off valve that communicates the inside with the atmosphere or a vacuum device. A set of two of these diamonds, which are movable up and down and arranged in symmetrical positions, are provided so that the horizontal movement can be stopped alternately at a position above the furnace and above the hot water inlet of the casting sleeve. A contact device is provided on the fixed part that comes into contact with the power supply contact of the actuator unit when the unit comes to its stop position, so that when energized, the actuator unit moves up and down and operates the opening/closing valve. automatic water heater.