JPS624379Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that automatically supplies hot water from casting equipment, particularly a melting parent furnace, to a heat retention furnace of a die-casting machine.

Conventionally, in casting equipment, an automatic supply device suitable for safely and accurately automatically supplying hot water from a parent melting furnace to a heat retention furnace has not yet been provided.

The purpose of this invention is to eliminate the above-mentioned drawbacks of the conventional devices and provide a safe and accurate automatic hot water supply device.

This invention will be explained below based on embodiments shown in the drawings.

The drawing shows an automatic hot water supply device for casting equipment according to this invention, in which the outer frame 5 is formed by the upper and lower frame parts 5.
It has a rectangular parallelepiped shape with a side frame portion 5c surrounding them, and four tie bars 3 spaced apart from each other between the upper and lower frame portions 5a and 5b within this outer frame 5 are vertically oriented. It is permanently installed. Furthermore, outer frame 5
Inside are the upper and lower frame parts 4a and 4b and the side frame 4 around them.
A substantially rectangular parallelepiped-shaped inner frame 4 having a diameter c is arranged, and this inner frame 4 is slidably supported by each tie bar 3. The inner frame 4 is connected at its lower end to an operating rod of a main cylinder 6 provided vertically on the outer frame 5, and the inner frame 4 is moved up and down by its operation. Further, a ladle 1 is vertically provided at the lower end of the inner frame 4 via a handle 2 so as to be swingable.

The outer frame 5 is fixed at its upper end to a truck 16, and this truck 16 has a pair of side plates 17 and 18 that are parallel to each other, and a pair of side plates 17 and 18 that are parallel to each other.
A motor 13 with a continuously variable transmission, which is a drive source for traveling, is attached to the lower surface of the bottom plate 19.

A pinion 24 is provided on the drive shaft 20 of the motor 13, and this pinion 24 connects the intermediate gear 2 to the gear 23 of the rotating shaft 20 passing through the side plates 17 and 18.
The gears 21 at both ends of this rotating shaft 20 mesh with the gears 26 at both ends of a roller shaft 25 passing through both side plates 17 and 18. A pair of drive rollers 11 are provided at the middle of the roller shaft 25, and the rollers 11 are in circumferential contact with the inner surface of the lower end of the H-shaped running rail 15. An electromagnetic brake 14 is provided at one end of the rotating shaft 22, and the electromagnetic brake 14 can move toward and away from the fixed plate 19'. 11' is a driven roller, and 12 is an auxiliary roller that is in contact with the inner surface of the upper end of the running rail 15.

A sub-cylinder 8 is provided vertically in the inner frame 4,
The upper end of a lifting rod 7 whose lower end is pivotally supported by a handle 2 is fixed to the tip of the operating rod, and the ladle 1 is rotated between a horizontal position and an inclined position by the operation of a sub-cylinder 8. There is.

Further, limit switches LS-1 to LS-6 are provided close to the upper side of the H-shaped running rail 15 extending between the parent furnace 30 and the die-casting machine 31, and are operated by the trolley 16 when it is running. ing.

Next, the operation of the above will be explained.

When in the standby position, electromagnetic brake 1
4 is actuated by a control member (not shown), the carriage 16 and the ladle 1 etc. integrally attached below it are reliably stopped and held at that position.

When a hot water amount sensor (not shown) that detects the amount of hot metal inside the melting furnace of the die-casting machine 31 detects that the amount of hot metal has decreased and issues a signal, the control member that receives this signal is As a result, the electromagnetic brake 14 is released and the motor 13 starts rotating, which rotates the traveling roller 11 via a gear train and moves the cart 16 toward the right in FIG. 4, that is, toward the parent furnace 30 at high speed. to move it. When the truck 16 that has moved to the right operates the limit switch LS-5, the rotation speed of the motor 13 is reduced by the control member, so the truck 16 is decelerated, and the limit switch LS-5 is activated.
-6 is activated, the motor 13 is stopped, and the truck 16 is stopped at that position, and the electromagnetic brake 14 is operated to ensure that the truck 16 is stopped.

After the trolley 16 has stopped for a predetermined period of time in this manner, the sub cylinder 8 provided thereon operates for a predetermined period of time to tilt the ladle 1. In this manner, the main cylinder 6 operates with the ladle 1 in the inclined state, and as a result, the inner frame 4, on which the ladle 1 is provided at the lower end, begins to descend. The lowering distance of the inner frame 4 is determined by measuring the amount of hot water in the parent furnace 30 using a hot water amount sensor 32 provided at the lower end of the inner frame 4 until it reaches a set distance.

After drawing hot water into the ladle 1, the main cylinder 6 ascends, and when it stops after rising, the sub cylinder 8 operates again to bring the ladle 1, which has been in an inclined position, into a horizontal position. After the ladle 1 is in the horizontal position in this way, the motor 13 starts rotating after a predetermined period of time has elapsed, the cart 16 moves to the left at a low speed, and the limit switch LS-
After activating 5, the limit switches LS-1 and LS-2 move at high speed and are located above and slightly in front of the die-casting machine 31 that issued the signal. After the LS-2 is activated, the speed becomes low, and when the limit switch LS-1 is activated, the speed is stopped and the electromagnetic clutch 14 is activated to ensure that the engine is stopped. Thereafter, after a predetermined period of time has elapsed, the sub-cylinder 8 is activated to tilt the ladle 1 and pour hot water into the insulating furnace of the die-casting machine 31, and after it is temporarily stopped in this state, the sub-cylinder 8 is activated again to further tilt the ladle 1. Turn. Therefore, Ladle 1
The hot water is reliably discharged by being tilted in two stages. Then, it is returned to the horizontal position by the sub cylinder 8, and after a predetermined period of time, the motor 13 starts rotating, and the cart 16 moves rightward at high speed, and the limit switch LS
-3 is activated, the speed becomes low, and when the limit switch LS-4 is activated, it stops and the electromagnetic clutch 14 is activated to ensure that it is stopped and held at the standby position.

In addition, in the case where a plurality of die-casting machines are located below the traveling rail 15 and hot water is poured into each die-casting machine, all the limit switches provided above the die-casting machine other than the die-casting machine that issued the signal are Since they are inoperative, even if they come into contact with them while the trolley 16 is running, no signal will be emitted, and therefore hot water can be reliably supplied only to die casting machines whose hot water volume has decreased. .

This idea is as described above, and the trolley is driven by a drive motor along a guide rail, and the ladle below it is raised and lowered by the main cylinder to scoop up hot water, and the ladle is rotated by the sub-cylinder. Since the hot water is then supplied to the heat insulating furnace of the required die-casting machine, everything from drawing up the hot water to supplying the hot water can be done automatically, greatly improving work efficiency.

Further, the ladle is suspended from the lower end of an inner frame within an outer frame vertically installed on the trolley, and both the inner and outer frames are approximately rectangular parallelepiped-shaped having upper and lower frame portions and side frame portions,
Since the inner frame is slidably supported by four tie bars fixed to the outer frame, the elevating path of the ladle, that is, the elevating path of the inner frame, is reliably defined by the four tie bars, and the horizontal Hot water can be drawn up quietly without any directional movement, and there is no chance of hot water spilling. Moreover, by adopting the inner and outer frame structure as described above, the entire device becomes robust, and therefore, durability is improved and it can be used for a long period of time.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of this invention, Figure 2 is a front view showing an embodiment of this invention.
The figure is a side view, FIG. 3 is a view taken along the - line in FIG. 1, and FIG. 4 is a view showing the state installed above the furnace. 1... Ladle, 4... Inner frame, 5... Outer frame, 6...
... Main cylinder, 8 ... Sub-cylinder, 11 ... Travel roller, 12 ... Auxiliary roller, 13 ... Motor with continuously variable transmission, 14 ... Electromagnetic brake, 15 ... Travel rail, 16 ... Dolly, 30 ... Parent hearth, 31...
...Die-casting machine, LS-1 to 6...Limit switch.

Claims (1)

[Scope of utility model registration request] A self-propelled cart is installed on a guide rail installed from above the melting parent furnace to above the heat retention furnace, and the upper and lower frame portions and the surrounding side frame portions are attached to the lower end of this cart. A substantially rectangular parallelepiped-shaped outer frame is installed vertically, and four tie bars are vertically fixed at intervals between the upper and lower frame portions of the outer frame,
Further, within this outer frame, a substantially rectangular parallelepiped-shaped inner frame having upper and lower frame portions and surrounding side frame portions is disposed and slidably supported by each of the tie bars, and this inner frame is connected to the outer frame. It is designed to be raised and lowered by a main operating cylinder installed vertically between the inner frames, and a ladle is suspended from the lower end of this inner frame so as to be rotatable between a horizontal position and an inclined position. An automatic hot water supply device for a casting facility, characterized in that the device is configured to rotate by a sub-actuation cylinder provided vertically in an inner frame.