JPH06285615A - Wireless operating system casting device - Google Patents

Abstract

PURPOSE:To improve the working condition and the safety in a molten metal pouring work by enabling remote operation even from the position which is apart from a high temp. ladle, at the time of pouring the molten metal. CONSTITUTION:A wireless operating system casting device arranges an electric motor 23 for driving the pouring of molten metal at the ladle side 1 and an electric source device 32 for supplying the electric source to this electric motor 23 to supply the electric source to the electric motor 23 from the electric source device 32 and also, the electric motor 23 is wireless-controlled by a wireless operating device 35 to pour the molten metal into a mold from the ladle 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a radio-controlled casting device.

[0002]

2. Description of the Related Art A molten metal pouring device puts a molten metal taken out of a furnace into a ladle, moves the ladle to a position where a mold is installed, and then pours the molten metal into the mold. Conventionally, this pouring device has a tilting type that tilts the ladle around the pivot axis when pouring molten metal, and a stopper that opens and closes the pouring port of the ladle is raised and pouring from the pouring port. There is a stopper type for hot water.

The tilting pouring device is designed so that a ladle is tilted about a pivot shaft by a handle through a tilting mechanism. Further, in the stopper type pouring device, a stopper is provided so as to be movable up and down, and the stopper is operated in the vertical direction by a lever to open and close the pouring port.

[0004]

The conventional casting device is
In any case of tilting pouring type and stopper type, the operator manually operates the handle or lever to pour the molten metal when pouring the molten metal, so that the worker is always in a high temperature and high temperature state during the work. Must be near the pouring equipment at.
Therefore, there is a disadvantage that not only the working environment is bad and the degree of fatigue of the worker is great, but also the worker must always work with danger.

In view of such conventional problems, the present invention enables remote control from a position away from a high-temperature, high-heat ladle when pouring molten metal to improve working conditions and safety in pouring work. The purpose is to plan.

[0006]

According to the present invention as set forth in claim 1, in a pouring device in which a ladle 1 is moved to pour the molten metal into a mold 44, the ladle 1 side is for pouring operation. The electric motor 23 is provided, and the radio control device 35 for radio-controlling the electric motor 23 is provided.

According to a second aspect of the present invention, in the first aspect of the invention, a power supply device 32 for supplying power to the electric motor 23 is provided on the ladle 1 side.

According to a third aspect of the present invention, in the first or second aspect of the invention, the ladle 1 is tiltably provided via the pivot shafts 8 at the lower ends of the pair of left and right suspension rods 3, This pivot
A tilting mechanism 9 for tilting the ladle 1 via the motor 8, an electric motor 23 for driving the tilting mechanism 9, and a battery 33 for supplying power to the electric motor 23 are provided at the bottom of the hanging rod 3. is there.

According to a fourth aspect of the present invention, in addition to the first or second aspect of the invention, the ladle 1 is pivotally supported on the lower ends of the pair of left and right suspension rods 3 via a pivot shaft 8. A stopper 60 for opening and closing the pouring port 59 of the ladle 1 is provided so as to be able to move up and down, and an elevating mechanism 61 for elevating the stopper 60 and this elevating mechanism.
An electric motor 23 that drives 61 and a battery 33 that supplies power to the electric motor 23 are attached to the outside of the ladle 1.

[0010]

According to the present invention as set forth in claim 1, since the electric motor 23 for pouring operation is provided on the ladle 1 side, and the wireless control device 35 for wirelessly controlling the electric motor 23 is provided, the pouring operation is performed at the time of pouring. Even from a place away from the ladle 1, the electric motor 23 for pouring operation is remotely controlled by the wireless control device 35, and molten metal is poured from the ladle 1 into the mold 44. Therefore, the worker does not always have to be near the high-temperature, high-heat ladle 1.

Further, according to the present invention as set forth in claim 2, a ladle 1 is provided.
Since the power supply device 32 that supplies power to the electric motor 23 is provided on the side, the ladle 1 can be moved more easily than when power is supplied to the electric motor 23 via a power supply cable or the like.

Further, in the present invention as set forth in claim 3, power is supplied from the battery 33 to the electric motor 23, and the electric motor 23 tilts the ladle 1 around the pivot shaft 8 through the tilting mechanism 9. And pour the molten metal. In this case, since the tilting mechanism 9, the electric motor 23, and the battery 33 are located below the suspension rod 3,
Despite the tilting type in which the ladle 1 is hung and moved by the hanging rod 3, the stability of the entire device is good and the power supply to the electric motor 23 is easy.

According to the present invention as set forth in claim 4, power is supplied from the battery 33 to the electric motor 23, and the stopper 60 is raised by the electric motor 23 via the elevating mechanism 61, so that the ladle 1 is poured. The molten metal is poured from the sprue 59. in this case,
Since the lifting mechanism 61 and the electric motor 23 are attached to the outside of the ladle 1, the stopper is used even though it is a hanging type.
The 60 moves up and down smoothly. Since the battery 33 is attached to the outside of the ladle 1 like the electric motor 23, it is easy to supply power to the electric motor 23.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 6 show a first embodiment of a radio-controlled casting apparatus according to the present invention. 2 to 5, 1 is a ladle and 2 is its pouring port. 3 is a pair of left and right hanging rods,
This suspension rod 3 is connected by a connecting member 4 on the upper end side, and the connecting member 4 has a hanging tool 5 for hooking a crane hook.
Is attached.

A boss portion 6 and a reinforcing plate 7 are joined to the lower end of each suspension rod 3 by welding or the like. And each boss 6
A pair of left and right pivotal shafts 8 fixed to the ladle 1 are rotatably inserted in this. Therefore, the ladle 1 can be tilted around the pivot shaft 8.

Reference numeral 9 is a tilting mechanism for tilting the ladle 1 via one pivot shaft 8, and a first helical gear 10 fixed to the tip of the one pivot shaft 8 and a first helical gear. The second helical gear 11 and the second helical gear 11, which are arranged so as to be engaged with the gear 10 from above.
The helical gear 11 is provided with a worm screw 12 arranged so as to be engaged with the gear from above, and a bevel gear mechanism 13 interlocking with the worm screw 12, and these are housed in a gear case 14 and a bevel gear case 15. .

The gear case 14 is provided on a mounting table 16 fixed to the outside of one reinforcing plate 7, and the bevel gear case 15 is provided on the top of the gear case 14 and on the side opposite to the pouring port 2 of the ladle 1. It is mounted so that it is located. The first and second helical gears 10,11 and worm screw 12 are gear cases
It is arranged vertically in 14 units. Second Hasuba Gear 11
Is rotatably supported by an intermediate shaft 17 supported on both left and right side walls of the gear case 14 in a cantilever manner.

The worm screw 12 is fixed to a worm shaft 18 which is supported on both sides of the front and rear sides of the worm shaft 18 in an upper portion of the gear case 14 so as to rotate integrally with the worm shaft 18. The bevel gear mechanism 13 is composed of first and second bevel gears 19 and 20 arranged in a bevel gear case 15. The first bevel gear 19 is fixed to the end of the worm shaft 18, and the second bevel gear 20 is attached to the transmission shaft 21. It is fixed.

The transmission shaft 21 is rotatably supported on both left and right side walls of the bevel gear case 15 in a cantilevered manner. Then, one end of the transmission shaft 21 projects outward from the side wall of the bevel gear case 15, and is linked to an electric motor 23 as a drive source via a spur gear mechanism 22 on the projecting side, and the projecting end is for manual operation. The handle 24 is attached.

The spur gear mechanism 22 includes a first spur gear 25 fixed to the transmission shaft 21 and a support shaft 26 fixed to the gear case 14.
It is composed of a second spur gear 27 that is rotatably supported by and is in mesh with the first spur gear 25, and a drive gear 28 that is in mesh with the second spur gear 27. The drive gear 28 is fixed to the output shaft 29 of the electric motor 23. The electric motor 23
The output shaft 29 is provided with an electromagnetic clutch 30.

The electric motor 23 is mounted on a motor mount 31 fixed to the gear case 14 on the side opposite to the bevel gear case 15. The electric motor 23 is a direct current type, and a power supply device 32 that supplies power to the electric motor 23 is composed of a battery 33. Then, the battery 33 is below the mounting table 16,
A battery holder fixed to the mounting table 16 and the reinforcing plate 7.
It is provided on the 34 so that it can be taken out freely.

The battery pedestal 34 is of a box type having an opening only on the side opposite to the ladle 1, and has a heat insulating material mounted on its inner surface. As shown in FIG. 1, the electric motor 23 is remotely controlled by a radio control device 35 via a control amplifier 36 by a radio control method. The radio control device 35 includes a transmitter 37 and a receiver 38, and the receiver 38 is an electric motor.
It is attached to the gear case 14 etc. together with 23.

The transmitter 37 is provided with a tilt push button switch 39 and a return push button switch 40. When the tilt push button switch 39 is pushed, a tilt (normal) signal is sent and the return push button switch 40 is pushed. When they are turned on, a return (reverse) signal is transmitted respectively. The transmitter 37 transmits a predetermined signal only when the push button switches 39 and 40 are pushed.

The control amplifier 36 is for controlling the electric motor 23 in the normal and reverse directions by the tilt (forward) signal and the return (reverse) signal from the receiver 38. The control amplifier 36 has a ladle. A limit switch 43 for detecting the return of 1 is connected, and when the limit switch 43 moves, the electric motor 23 is stopped. Each limit switch 43 has a reinforcing plate so that it can be operated by a striker attached to the pivot shaft 8.
7 or attached to the gear case 14.

Next, the operation during pouring will be described. Ladle
For 1), hook a crane or the like on the hanger 5, and move it to the position where the mold is set while hanging it via the hanging rod 3. Then, if you move to the installation position of the mold, transmitter 37
The push button switch 39 is pressed to wirelessly transmit a tilt signal from the transmitter 37.

The receiver 38 then receives the tilt signal,
Since the control amplifier 36 operates and power is supplied from the battery 33 to the electric motor 23, the electric motor 23 operates in the tilting direction. When the electric motor 23 operates, the electromagnetic clutch 30
The drive gear 28 rotates via the drive gear 28, and the transmission shaft 21 rotates via the spur gears 25 and 27 of the spur gear mechanism 22. Then, since the rotational force is transmitted to one pivot shaft 8 via the bevel gears 19,20 and the helical gears 10,11 of the tilting mechanism 9, as shown in FIG. 6, the ladle 1 is pivotally supported. 8 Tilt in the direction of arrow a around 8 and pour the molten metal from the pouring port 2 into the mold 44.

At this time, if the operation of the push button switch 39 is released, the electric motor 23 stops and the electromagnetic clutch
30 cuts. However, since the tilting mechanism 9 has the worm screw 12, the ladle 1 is locked and held in a tilted state by the engagement of the worm screw 12 and the second helical gear 11, and the molten metal is held in the mold 44. Continues to pour.

When a predetermined amount of molten metal has entered the mold 44, the push button switch 40 of the transmitter 37 is then pressed to send a return signal from the transmitter 37. Then, the receiver 38 receives the return signal, the control amplifier 36 operates to reverse the electric motor 23 in the return direction, and the electromagnetic clutch 30 is connected. Therefore, the pivot shaft 8 reverses in the returning direction via the spur gear mechanism 22 and the tilting mechanism 9, and the ladle 1 returns from the tilted state to the vertical state.

When the ladle 1 returns, pushbutton switch 40
Cancel the operation of. However, even if the release at this time is delayed,
Since the limit switch 43 operates to detect the return of the ladle 1, the electric motor 23 is stopped, the electromagnetic clutch 30 is disengaged, and the ladle 1 can be completely stopped at the return position. Then, the ladle 1 is moved to the next installation position of the mold 44, and thereafter, the molten metal is sequentially poured into each mold in the same manner.

In this way, if the electric motor 23 is used as the drive source of the tilting mechanism 9, the battery 33 is mounted on the moving ladle 1 side, and the electric motor 23 is wirelessly controlled by the wireless control device 35, Since it can be operated from a distant place, it is not necessary for an operator to be near the hot and hot ladle 1.

Therefore, the working environment of the worker can be improved, and at the same time, the safety is remarkably improved. Further, since the battery 33 is on the moving side, there is nothing obstructing as compared with the case where power is supplied via a cable or the like, and the movement of the ladle 1 etc. becomes smooth. Moreover, since the battery 33 is located at the lower end portion below the boss portion 6 for the pivot shaft 8 provided at the lower end of the suspension rod 3,
The overall safety is improved and the thermal effect of the molten metal in the ladle 1 can be reduced as compared with the case where it is installed on the upper side.

The ladle 1 can be manually tilted by operating the handle 24. At this time,
Since the electromagnetic clutch 30 is disengaged, the electric motor 23 does not become a load for manual operation.

FIG. 7 shows a second embodiment of the present invention. A rotation detector 45 is provided on the output shaft 29 side of the electric motor 23, and the detection signal is returned to the control amplifier 36 via the feedback amplifier 46. It is a thing. And the transmitter 37 has the function of setting and transmitting the tilting position (angle) of the ladle 1.
The control amplifier 36 also has a set tilt position and rotation detector 45.
It has a function of comparing and discriminating the actual tilting position of the ladle 1 detected by the above and stopping the electric motor 23 when the two match.

By doing so, the ladle 1 is tilted while detecting the actual tilt position of the ladle 1, and when the ladle 1 tilts to the set tilt position, the signal from the control amplifier 36 is sent. Causes the electric motor 23 to stop automatically. Therefore, the operator can control the vehicle more easily.

FIG. 8 shows a third embodiment of the present invention in which the second spur gear 27 of the spur gear mechanism 22 is arranged on the same axis as the second helical gear 11 and the intermediate shaft 17 is arranged in the gear case 14. The second spur gear 27 is rotatably provided at the protruding end of the second spur gear 27. In addition, the electric motor 23 is a gear case 14
It is provided at the upper and lower central parts on the front side of.

In this way, since the second spur gear 27 is supported by the intermediate shaft 17, the structure becomes simpler. Further, since the mounting positions of the second spur gear 27 and the electric motor 23 are lowered, the center of gravity of the whole can be lowered. The electric motor 23 is
It may be mounted on the upper surface of the gear case 14, on the upper or lower surface of the bevel gear case 15, or further below the bevel gear case 15.

FIG. 9 shows a fourth embodiment of the present invention, and illustrates a bevel gear case 15 provided with a mechanical clutch 47 for automatic / manual switching. That is, the transmission shaft 21 supporting the bevel gear 20 and the operating shaft 48 of the handle 24 are rotatably arranged on the same shaft center so as to face each other, and the cylindrical shaft 49 of the first spur gear 25 is mounted on the operating shaft 48. Is rotatably fitted. A clutch 47 is provided between the opposed ends of the transmission shaft 21, the operation shaft 48, and the cylinder shaft 49.

The clutch 47 includes a spline boss 50 fixed to the transmission shaft 21 and a spline boss 51 fixed to the operating shaft 48.
A spline boss 52 fixed to the cylindrical shaft 49, and a shifter 53 slidably fitted to the outer circumferences of the spline bosses 50, 51, 52 in the axial direction.

The shifter 53 is provided with a spline hole 54 that constantly meshes with the spline boss 50 and a spline hole 55 that selectively meshes with the spline bosses 51, 52. Also, the shifter 53 can be axially shifted by a clutch lever 56. It has become. The clutch lever 56 is pivotally supported on the bevel gear case 15 by a pin 57 and can be positioned at each shift position by a positioning mechanism (not shown).

In this embodiment, when the clutch lever 56 is set to the solid line position, the cylinder shaft 49 is connected to the transmission shaft 21 via the clutch 47, so that the ladle 1 can be tilted by the electric motor 23. . If the clutch lever 56 is set to the position indicated by the chain double-dashed line, the spline hole 55 of the shifter 53
Engages with the spline boss 51 of the operating shaft 48, and the clutch 47
The operation shaft 48 is connected to the transmission shaft 21 via. Therefore, the ladle 1 can be tilted by manually operating the handle 24.

The use of the mechanical clutch 47 in this manner has the advantage that the power consumption of the battery 33 is reduced as compared with the case where the electromagnetic clutch 30 is used, and it is possible to sufficiently deal with continuous work for a long time. When the mechanical clutch 47 is used, its structure and form may be something other than the structure shown in FIG. 9, and the place where the clutch 47 is provided is not limited to the position shown in FIG.

10 and 11 show a fifth embodiment of the present invention, which is adopted in a stopper type casting device.
That is, the ladle 1 has a pouring port 59 formed in the bottom portion 58, and a stopper 60 for opening and closing the pouring port 59 is provided so as to be vertically movable. The stopper 60 is a lifting rod 62 that constitutes the lifting mechanism 61.
It is fixed to an arm 63 projecting from the upper end of the ladle 1 above the ladle 1.

The elevating rod 62 is vertically arranged outside the ladle 1, and supported vertically slidably by a pair of upper and lower guide members 65 fixed to the outer surface of the ladle 1 via a mounting plate 64. Be guided. A rack gear 66 is formed on the elevating rod 62, and a pinion 67 of the electric motor 23 is engaged with the rack gear 66. Further, the lifting rod 62 is provided with an engaging portion 68,
The lever 69 is engaged with the engaging portion 68. Lever 69 is for manual operation, and bracket 70 fixed to mounting plate 64
It is pivotally supported by a pin 71 so that it can slide up and down.

Motor mount 31 for mounting the electric motor 23
Is fixed to the outer lower part of ladle 1, and
A battery pedestal 34 is provided on the lower side. 72
Is a spring for urging the elevating rod 62 downward so that the stopper 60 fits into the pouring port 59.

Also in this case, the electric motor 23 is controlled by the radio control device 35 similar to that shown in FIG. 1 or 7. Then, if the electric motor 23 is rotated in the normal direction, the lifting rod 62 rises via the pinion 67 and the rack gear 66, and the stopper 60 rises together with this, so that the pouring port 59 opens, and from this pouring port 59 The molten metal can be poured into a mold.

When the electric motor 23 is rotated in the reverse direction, the lifting bar 62 and the stopper 60 are lowered, and the stopper 60 is poured into the pouring port.
Close 59. By operating the lever 69 up and down, pouring can be performed manually.

Although the respective embodiments have been described in detail above, the power supply device 32 of the electric motor 23 is not limited to the battery 33. For example, in the case of a pouring machine in which the ladle 1 is mounted on a dolly, an engine may be mounted on the dolly and a small generator may be driven to generate electric power. Power may be supplied from a power supply via a power supply cable.

In the case of the tilting type, the second helical gear 11 of the tilting mechanism 9 is omitted, and the worm screw 12 is used as the first helical gear.
You may occlude 10 directly. Further, a so-called battery motor in which the electric motor 23 and the battery 33 are combined may be used.

[0049]

According to the present invention as set forth in claim 1, a ladle is provided.
Since the electric motor 23 for pouring operation is provided on the 1st side, and the wireless control device 35 for wirelessly controlling the electric motor 23 is provided,
Even when you are away from the ladle 1 when pouring hot water, the radio control device
The pouring operation can be controlled by 35. Therefore, it is not necessary for the worker to be always near the ladle 1 as in the past,
The working environment can be greatly improved, and the work safety is significantly improved.

According to the invention of claim 2, in the invention of claim 1, an electric motor is provided on the ladle 1 side.
Since the power supply device 32 for supplying power to the electric power supply device 23 is provided, the ladle 1 can be moved easily without causing any obstacle as compared with the case where electric power is supplied to the electric motor 23 via a power supply cable or the like.

Further, according to the present invention described in claim 3,
In the invention according to claim 1 or 2, a pair of left and right suspension rods.
A tilting mechanism for tilting the ladle 1 through the pivot shaft 8 at the lower end of the lathe 3 and tilting the ladle 1 through the pivot shaft 8.
9 and the electric motor 23 that drives the tilting mechanism 9 and the battery 33 that supplies power to the electric motor 23 are provided below the hanging rod 3, so that the ladle 1 is hung by the hanging rod 3. Despite being a tilting type that moves, the stability of the entire device is good, tilting of the ladle 1 during pouring is easy, and power supply to the electric motor 23 is easy.

According to the invention of claim 4, in the invention of claim 1 or 2, the pair of left and right suspension rods 3
While supporting the ladle 1 via the pivot shaft 8 at the lower end of
A stopper 60 for opening and closing the pouring port 59 of the ladle 1 is provided to be movable up and down, and an elevating mechanism 61 for elevating the stopper 60 and an electric motor 23 for driving the elevating mechanism 61 are attached to the outside of the ladle 1. So, despite being a hanging type,
The lifting and lowering operation of the stopper 60 is smooth and easy. Further, since the battery 33 is attached to the outside of the ladle 1 like the electric motor 23, it is easy to supply power to the electric motor 23.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a control system showing a first embodiment of the present invention.

FIG. 2 is an overall front view showing the first embodiment of the present invention.

FIG. 3 is a front sectional view of a tilting mechanism portion showing the first embodiment of the present invention.

FIG. 4 is a plan sectional view of a tilting mechanism portion showing a first embodiment of the present invention.

FIG. 5 is a side view of the tilting mechanism portion showing the first embodiment of the present invention.

FIG. 6 is an operation explanatory view when pouring molten metal according to the first embodiment of the present invention.

FIG. 7 is a configuration diagram of a control system showing a second embodiment of the present invention.

FIG. 8 is a side view of a tilting mechanism portion showing a third embodiment of the present invention.

FIG. 9 is a configuration diagram of a clutch portion showing a fourth embodiment of the present invention.

FIG. 10 is a stopper-type sectional view showing a fifth embodiment of the present invention.

FIG. 11 is a plan view of a stopper type showing a fifth embodiment of the present invention.

[Explanation of symbols]

 1 Ladle 3 Suspension rod 8 Pivot shaft 9 Tilt mechanism 23 Electric motor 32 Power supply device 33 Battery 35 Wireless control device 44 Mold 59 Pouring spout 60 Stopper 61 Lifting mechanism

Claims (4)

[Claims] 1. A pouring device in which molten metal is poured into a mold (44) by moving the ladle (1), and an electric motor (23) for pouring operation is provided on the ladle (1) side. , This electric motor (2
A radio-controlled casting device characterized in that a radio control device (35) for radio control of 3) is provided. 2. The radio-controlled pouring machine according to claim 1, wherein a power supply device (32) for supplying power to the electric motor (23) is provided on the ladle (1) side. 3. A pivot shaft at lower ends of a pair of left and right suspension rods (3)
The ladle (1) is tilted through the (8), and the pivot shaft (8)
The tilting mechanism (9) that tilts the ladle (1) via the electric motor (23) that drives the tilting mechanism (9), and the battery (33) that supplies power to the electric motor (23). The radio-controlled casting device according to claim 1 or 2, wherein the hanging rod (3) is provided below the hanging rod (3). 4. A pivot shaft is provided at the lower ends of the pair of left and right suspension rods (3).
The ladle (1) is pivotally supported via (8), and a stopper (60) for opening and closing the pouring port (59) of the ladle (1) is provided so as to be able to move up and down.
An elevating mechanism (61) for elevating and lowering the stopper (60), an electric motor (23) for driving the elevating mechanism (61), and a battery (33) for supplying power to the electric motor (23). The radio-controlled casting apparatus according to claim 1 or 2, which is attached to the outside of (1).