JP3113950B2 - Pouring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouring apparatus installed on a casting production line.

[0002]

2. Description of the Related Art Conventionally, the operation of pouring a metal into a mold is a dangerous operation in a bad environment. In order to perform this operation mechanically, a device for tilting a ladle with hydraulic pressure has been used. , Because of the hydraulic pressure, the response to hot water draining etc. is slow, making it difficult to perform good pouring work, and it is difficult to cope with this if the shape, height, etc. of the mold are different. There is a problem that
It was difficult to automate pouring work. In addition, in the method of synchronizing the mold and the pouring machine by engaging with the connecting member, when the position of the gate of the mold is changed, the engaging position must be changed each time.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is possible to secure an appropriate pouring position in accordance with all kinds of molds and to perform a pouring operation. The purpose of the present invention is to provide a pouring device that can automatically perform the pouring under good working conditions. The gist of the pouring device is to tilt a plurality of molds onto a lower frame that can move along a mold line that sends out the molds at predetermined intervals. In a pouring apparatus provided with a ladle capable of pouring into the gate of the mold, a detecting means for detecting the feeding of the mold is provided in the mold line, and the lower frame is fed by the signal from the detecting means. The lower frame is provided with a moving mechanism for moving in synchronization with the lower frame, and a middle frame for reciprocating the ladle from the pouring position to the hot water receiving position is provided on the lower frame. mechanism Via lifting rotatably to the upper frame is provided, it is that with the tilting mechanism by the electric motor drive for tilting the ladle on the upper frame.

[0004]

The detecting means provided on the mold line detects the feeding of the mold, and the ladle can be moved to an appropriate position via the lower frame in synchronization with the feeding of the mold by a signal from the detecting means. It is possible to properly pour the molten metal from the ladle into the mold even while the mold line is moving, and move the upper frame up and down via the elevating mechanism according to the height of the mold, etc. The position of the pan can be set, and the ladle can be tilted favorably by controlling using an electric motor. In addition, it is possible to move the ladle from the pouring position to the hot water receiving position by reciprocating the middle frame,
For example, if two pouring devices are arranged, the ladle of the other pouring device is moved to the hot water receiving position while the pouring operation is performed by the ladle of one pouring device. Hot water can be received in the ladle and pouring operation can be performed continuously without loss time.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the entire configuration of the pouring apparatus, and FIG. 2 is a plan view of the same. In the figure, the pouring device is a mold line that continuously sends out a large number of molds,
It consists of two pouring machines movable along the mold line, and a carriage 2 is provided movably along two rails 1, 1 laid on the floor surface. The wheels 3, 3, 3 are mounted on rails 1, 1, and each wheel 3, 3 is driven via a speed reducer 5 driven by an AC servomotor 4.

[0006] Two pouring machines 6A and 6B are disposed on the movable cart 2 so as to face each other. In addition, trolley 2
Is provided in front of the mold line, and the mold line is
Two rails 9 and 9 are laid on the upper surface, and wheels 10 of a plate 11 are mounted on the rails 9 and 9, and a mold 12 is mounted on each of the plate 11. Each mold 1
2 and 12 are configured to be able to move on the rails 9 and 9 at predetermined intervals.

As shown in FIG. 2, each of the molds 12, 12 sent from the mold making machine is provided with a frame 13 provided on the side.
A rack 16 is connected to the cylinder 14 via a bracket 15 by being pressed by the operation of the upper cylinder 14. The rack 16 is engaged with a pinion 17, An encoder 18 is attached to 17. Therefore, the moving distance and speed of the cylinder 14 are controlled by the encoder 1
8 to be detected.

That is, the feed amount of each mold 12 is detected by the encoder 18, and the signal of the encoder 18 is
Is transmitted via a wiring 19 to the control panel 7 installed in the control panel 7. The control panel 7 includes the encoder 18
The pouring machines 6A and 6B are configured to move in response to the signals from

That is, even if the pouring machines 6A and 6B move in synchronization with the feeding of the mold line and each mold 12 is moving, the pouring port 39a of the ladle 39 is accurately placed in the sprue 12a of each mold.
Is controlled to be located. Next, the structure of the pouring machine will be described by enlarging the pouring machine 6B on one side, showing a front view in FIG. 3, a plan view in FIG. 4, and a left side view in FIG.

The pouring machine 6B is provided on the carriage 2 and includes a lower frame 21, a middle frame 26, an upper frame 32, a tilting frame 35, and a ladle 39.
The lower frame 21 is provided movably on a rail 20 disposed on the carriage 2 in the same direction as the rail 9,
Ball screw 2 driven by AC servo motor 22
The lower frame 21 is provided with the rail 2 when the ball screw 23 screwed to the bracket 24 rotates.
It can reciprocate along zero. That is, AC
The servo motor 22 moves the lower frame 21 following the feeding of the mold line based on the signal of the encoder 18.

Further, on the lower frame 21, a rail 20 is provided.
The two rails 25, 25 are arranged in a direction perpendicular to the above, and the middle frame 26 is movably provided on the rails 25, 25. That is, the middle frame 26 moves back and forth in a direction perpendicular to the lower frame 21. The middle frame 26 is reciprocated by an electric cylinder 27 as shown in FIG. In other words, the ladle 39 is moved from the pouring position where pouring into the mold 12 is possible to the rear side receiving position as the middle frame 26 reciprocates in the front-rear direction. At the hot water receiving position, the molten metal is supplied into the ladle 39 from above by a separate device. The electric cylinder 27 may be a hydraulic cylinder.

Next, a cam 30 is provided on the middle frame 26 so as to be movable in the horizontal direction by a lifting cylinder 29 driven by a lifting motor 28, and the upper surface of the cam 30 is an inclined surface. The roller 31 is in contact with the inclined surface. When the cam 30 moves in the horizontal direction, the roller 31 is pushed upward, and pushes the upper frame 32 upward. That is, the cam 3
The upper frame 32 is moved up and down by the positional relationship between the rollers 0 and the rollers 31. The upper frame 32 is formed in a U-shape whose upper part is open, and a fulcrum shaft 37 provided at an upper end thereof.
A tilting frame 35 is attached to 37 so as to be tiltable.
On both ends of the tilting frame 35, fan-shaped fan cams 36,
36 are provided.

A chain 43 is wound around the outer periphery of the fan cams 36, 36, and the chain 43 is engaged with a lower sprocket 41 and an upper sprocket 42 provided at a lower portion and an upper portion of the upper frame 32, respectively. . One end of the chain 43 is fixed to the fan cam 36, and the other end is fixed to the lower sprocket 41. The lower sprocket 41 is connected to a speed reducer 45 driven by the rotation of a servomotor 44. When the lower sprocket 41 is driven by the drive of the speed reducer 45, the fan cam 36 tilts via the chain 43, and accordingly, The tilting frame 35 tilts, and the ladle 39 placed and stored in the tilting frame 35 tilts.

In order to support the ladle 39, the tilting frame 3
5 is provided with a receiving plate 38. The ladle 39 can be removed upward, and the ladle 39 is provided with a suspension plate 40. In the figure, reference numeral 33 denotes a guide bar for smoothly moving the upper frame 32 up and down, and each guide bar 33 moves up and down in the guide housing 34.

In this embodiment, as shown in FIG. 2, when the ladle 39 on one side is in the pouring position, the ladle 39 on the other side is in the pouring position. While the ladle 39 on one side is performing the pouring operation, hot water is supplied to the ladle 39 on the other side, and the ladles of the respective pouring machines 6A and 6B are alternately arranged. 39, 39 are moved in the front-rear direction so that the pouring operation can be continuously performed without a loss time. In such a pouring device, first, the AC servomotor 4 is driven to move the trolley 2 to a predetermined position, and the trolley 2 is arranged at the first set position. In this state, when each mold 12 is moved along the mold line by driving the cylinder 14, the lower frame 21 moves following the movement of the mold 12 and the pouring port 39a of the ladle 39 is aligned with the gate 12a of the predetermined mold. And while the mold 12 is moving, the ladle 39 moves the mold 1
2 can be poured.

When the height of the mold 12 is different,
By driving the elevating motor 28, the height position of the upper frame 32 can be appropriately adjusted, so that different molds 12 can be favorably handled. The tilting frame 35 is tilted by driving the servo motor 44, and the tilting state of the tilting frame 35 is favorably controlled by the control of the servo motor 44, so that a certain amount of injection is performed from the start to the end of pouring. Control can be performed so that the amount of hot water can be obtained, and a response to hot water removal or the like, which is difficult with the conventional hydraulic system, can be performed very well by controlling the servomotor 44. If the operation of pouring is stored in the control panel 7 in advance, the servomotor 44 can be appropriately controlled based on this storage, and the tilting operation of the tilting frame 35 can be controlled well. Therefore, according to the type of the mold 12, the servo motor 4
4 enables smooth low-speed operation and instantaneous high-speed startup. Further, as described above, a pair of pouring machines 6A,
6B can be operated alternately to perform the pouring operation continuously.

[0017]

According to the present invention, there is provided a pouring ladle having a ladle capable of pouring into a gate of the mold by tilting the mold on a lower frame movable along a mold line for feeding a large number of molds at predetermined intervals. In the hot water apparatus, the mold line is provided with detecting means for detecting the feeding of the mold, and a moving mechanism for moving the lower frame in synchronization with the feeding of the mold by a signal from the detecting means is provided on the lower frame, On the lower frame, a middle frame for reciprocating the ladle from the pouring position to the hot water receiving position is provided, and an upper frame is provided on the middle frame so as to be able to move up and down via a lifting mechanism, and the upper frame is provided with the upper frame. Equipped with a tilting mechanism driven by an electric motor that tilts the ladle, the spout of the ladle can be accurately aligned with the gate of the mold following the feeding of the mold, and the Can also be carried out continuously good pouring operations, it can be eliminated water spills, and the like. In addition, the ladle can be tilted by the drive of the electric motor to smoothly respond to the drainage, etc., and the pouring operation becomes smooth and good. In addition, the ladle can be set at an appropriate height position via the elevating mechanism in accordance with the height of the mold and the like, and the responsiveness to the change of the mold is improved. Further, since the ladle can be moved from the pouring position to the receiving position by moving the middle frame, the ladle can be used alternately by disposing a plurality of pouring devices, and continuous pouring operation can be performed. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a front view showing the overall configuration of a pouring device.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is an enlarged front view of the pouring machine.

FIG. 4 is a schematic plan view of FIG. 3;

FIG. 5 is a left side view of FIG.

[Explanation of symbols]

 Reference Signs List 1 rail 2 carriage 4 AC servo motor 6A, 6B pouring machine 7 control panel 9 rail 11 plate 12 mold 14 cylinder 16 rack 17 pinion 18 encoder 20 rail 21 lower frame 22 AC servo motor 23 ball screw 26 middle frame 28 lifting motor 29 Lifting cylinder 30 Cam 31 Roller 32 Upper frame 33 Guide bar 35 Tilt frame 36 Fan cam 37 Support shaft 39 Ladle 39a Spout 41 Lower sprocket 42 Upper sprocket 43 Chain 44 Servo motor

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-16231 (JP, A) JP-A-50-29432 (JP, A) JP-A 47-34120 (JP, A) JP-A 54-294 149327 (JP, A) JP-A-51-59025 (JP, A) JP-A-50-112225 (JP, A) JP-A-1-254375 (JP, A) JP-A-62-259662 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B22D 41/12 B22D 41/06 B22D 47/00

Claims (1)

(57) [Claims] 1. A pouring device comprising a ladle capable of pouring a pouring gate into a mold by tilting the pouring mold onto a lower frame movable along a mold line for feeding a large number of molds at predetermined intervals, A detecting means for detecting the feeding of the mold is provided on the mold line, and a moving mechanism for moving the lower frame in synchronization with the feeding of the mold by a signal from the detecting means is provided on the lower frame, and a moving mechanism is provided on the lower frame. To
An electric frame for reciprocating the ladle from the pouring position to the hot water receiving position is provided, and an upper frame is provided on the intermediate frame so as to be able to move up and down via an elevating mechanism, and the ladle is tilted to the upper frame. A pouring device comprising a tilting device driven by a motor.