JPS5922621B2 - Nozzle automatic connection and separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic nozzle connection/disconnection device that automatically connects or disconnects a nozzle to a nozzle receiver provided on the bottom of a container.

As a device of this kind, we devised one shown in FIGS. 1 and 2 in preparation for the present application.

This is a nozzle mounting device 13 attached to a pedestal 14 near the container 1 to a nozzle receiver 8 provided on the bottom surface 3 of the container 1.
This is a device that automatically connects or disconnects the nozzle 12 by.

This device is provided with a back-and-forth movement cylinder 27 that can freely swing in the vertical direction by a vertical movement cylinder 17 on a support body 15 that is rotatably installed vertically on a pedestal 14, and a tentacle that is protruded from the tip of a rod 26 of the cylinder 27. 23, the bottom surface 3 of the container 1
The nozzle 12, which is supported by a nozzle support 22 rotatably provided at the tip of the rod 26 and capable of returning to a predetermined position, is guided by a tentacle guide 11 provided at the nozzle receiver 8.
When the nozzle support 22 is moved upward by the horizontal guidance mechanism formed around the nozzle guide frame 10 and the vertical movement cylinder 17, the nozzle 12 is guided to the nozzle guide frame 10 and is moved to the nozzle receiver. It is characterized by having an upward guidance mechanism connected to the ridge 8.

However, this device has a discharge hole 4 provided at the bottom of the container 1.
is suitable for opening and closing by moving the valve stem 35 up and down, but when opening and closing the discharge hole 4 by a sliding gate provided slidably along the bottom surface 3 of the container 1, the sliding gate is suitable. Nozzle receiver 8 installed in
Since the nozzle guide frame 10 and the nozzle guide frame 10 move simultaneously, the nozzle 12 connected to the nozzle support 8 also moves simultaneously with the nozzle guide frame 10, and as a result, the nozzle support 22 that supports the nozzle 12 also moves in the same direction as the sliding gate. However, since the nozzle support 22 is fixed to the cylinder 270 for longitudinal movement and the rod 26, the nozzle support 22 receives the sliding resistance of the cylinder 27, and as a result, the load resistance to the movement of the sliding cage in the opening/closing force direction is large. Exhaust hole 4
It has the disadvantage that it is difficult to adjust the opening and closing of the valve.

This invention was made in view of the above circumstances, and the nozzle and nozzle support also have a load resistance as the sliding gate moves in the opening/closing direction. Its unique feature is that the arm, which has a nozzle mounted on its tip via a nozzle support, is supported on a freely rotating roller that supports an arm that can swing up and down and left and right, allowing it to move forward and backward. A locking tool is fixed to the arm, and a sliding block that can be freely engaged and separated is loosely fitted to the locking tool, the block is fixed to the rod of the cylinder for forward and backward movement, and the nozzle and the nozzle receiver of the sliding gate are connected. The block and the locking device are configured to be separated from each other while they are connected.

Embodiments of the present invention will be described below based on the description of the drawings.

In FIGS. 3 to 4, 1 is a container such as a ladle used in a steelworks, and after filling the inside with a container, it is rotated and transferred to the upper blade of a tundish 2 by a rotating tower device (not shown). is stopped within a predetermined error range.

A sliding gate 5 for opening and closing the discharge hole 4 is provided on the bottom 3 of the container 1 so as to be slidable in the opening/closing direction (left and right directions in the figure) by an opening/closing cylinder 6 provided on the container 1.

A passage hole 7 is bored in the sliding gate 5, and a nozzle holder 8 is protruded around the exit of the passage hole 7, and an umbrella-shaped interior is opened around the nozzle holder 8. A nozzle guide frame 10 is formed having a wheel surface 9.

Furthermore, the sliding gate 5 has a tentacle guide 11 made of a plate bent in the shape of a square, with its bent tip facing the center of the nozzle holder 8, and its open part facing the outside opposite to the center. It is fixed towards the target.

The sliding gate 5 is moved by the opening/closing cylinder 6 in a direction connecting the center of the nozzle holder 8 and the tip of the tentacle guide 11.
Nozzle mounting device 1 for connecting or separating the from the nozzle receiver 8
3 is attached to a pedestal 14 fixed to the ground or to a fixed object.

The nozzle mounting device 13 includes a support 15 rotatably installed vertically on a pedestal 14, an arm support 18 supported by a pivot pin 16 on the support 15, and one end connected to the arm support 18 by a pin and the other end. A cylinder 17 for vertical movement is pin-coupled to the lower part of the support body 15, an arm 20 that can freely move forward and backward is held by a freely rotating roller 19 of the arm support 18, and a horizontal (left and right) ) direction is an octopus-shaped nozzle support 22, a tentacle 23 projecting upward from the tip of the arm 20, and an arm 20.
Two locking tools 24 fixed at intervals, the locking tools 2
The rod 26 has a sliding block 25 movably fitted loosely into the arm 20 between the arms 20 and 4, and a cylinder 27 for longitudinal movement that has the rod 26 and is fixed to the arm support 18.

The distance from the inner center of the nozzle support 22 to the protruding position of the tentacle 23 is set approximately equal to the distance from the center of the nozzle support 8 to the tip of the tentacle guide 11.

The nozzle 12 placed on the nozzle support 22 has two nozzle support rods 28 on opposite circumferential sides so that the nozzle 12 is supported while being able to swing freely and maintain a vertical posture.

Further, a protrusion 290 is provided below the nozzle support 22 so that the nozzle support 22 is always centered on the extension line of the arm 20.
Both sides are pressed by a centering spring 31 that is engaged with a frame 30 whose one end is fixed to the tip of the arm 20.

A stop plate 32 fixed below the support 15 is connected to two stoppers 33 fixed to the pedestal 14 to prevent the arm support 18 from horizontally rotating beyond the stop error range of the container 1.
This is to restrict the rotation of the arm support 18 in the horizontal force direction.

The operation of the present invention having the above configuration will be explained.

When the pressure fluid is supplied to the cylinder 27 for forward and backward movement in a state where the container 1 is rotated and transferred above the tundish 2 by the swirling tower device and stopped within a predetermined error range,
The rod 26 moves forward and the sliding lock 25 hits one of the locking tools 24.

When the rod 26 moves further forward, the arm 20 moves forward and the tentacle 23 protruding from the arm 20 moves into the tentacle guide 1.
It comes into contact with the open part side of 1.

As the arm 20 moves further forward, the tentacle 23 slides on the tentacle guide 11 and gradually advances to the center of the tentacle guide 11 until it finally reaches its tip and stops.

At this time, the arm support 18 rotates in the horizontal (left and right) direction together with the support 15 and gradually changes its posture, but the tentacle 2
3 reaches the tip of the tentacle guide 11 and stops at the same time, it stops rotating and maintains a horizontal posture.

In this state, the arm 20 and the arm support 18 are located on the straight line connecting the center of the nozzle receiver 8 and the tip of the tentacle guide 11, and the nozzle Center of receiver 8 and tentacle guide 11
Since the distance between the tentacle 23 and the center of the nozzle 12 supported by the nozzle support 22 is approximately equal, the upper end opening of the nozzle 12 is located almost directly below the nozzle receiver 8 of the container 1.

In addition, if the container 1 has moved out of its normal position but has stopped within a predetermined error range, the straight line connecting the center of the nozzle receiver 8 and the tip of the tentacle guide 11 and the arm 20
The straight line passing through the center of the arm support 18 and the center of the arm support 18 do not match, so the upper end opening of the nozzle 12 is not located directly below the nozzle receiver 8 of the container 1. is located.

In either of these two cases, the tentacle 23 is connected to the tentacle guide 1.
1 and the forward movement of the arm 20 stops, a sensing device (not shown) senses this and gives a command to a control device (not shown) to supply pressure fluid to the vertical movement cylinder 17.

Then, the arm support 18 moves upward around the pivot pin 16, so the nozzle support 22 at the tip of the arm 20 rises, and the upper end opening of the nozzle 12 is connected to the nozzle receiver 8, giving a separation command to the control device. It will remain connected until it is connected.

When the nozzle support 22 rises while the container 1 is out of its normal position but stopped within a predetermined error range, the periphery of the part between the tips of the nozzle 12 will move around the nozzle guide frame 10. When the nozzle support 22 comes into contact with the vehicle surface 9 and further rises, the nozzle 12 is guided to the vehicle surface 9 and the nozzle receiver 8 and the upper end opening of the nozzle 12 are finally connected.

At this time, the nozzle support 22 is placed horizontally (
Since the nozzle support 22 is provided so as to be rotatable in the left-right) direction, even if the nozzle 12 is guided by the surface 9 of the nozzle guide frame 10 and moves toward the center of the nozzle receiver 8, the nozzle support 22
also horizontally moves around the connecting pin 21.

In this way, when the nozzle receiver 8 and the nozzle 12 are connected, a sensing device (not shown) senses this, and a command is given from the control device to operate the cylinder 27 for forward and backward movement, causing the rod 26 to retreat and slide. The block 25 is also released from one of the locking tools 24 so that the arm 20 can move freely by the roller 19 of the arm support 18.

Next, in response to a command from the control device, pressure fluid is supplied to the opening/closing cylinder 6 to move the sliding cage 5 to align the discharge hole 4 of the container 1 with the passage hole 7, thereby removing the molten steel in the container 1. flows down into Mendish 2.

At this time, the arm 20 is in a state where it can move freely due to the above-mentioned reason, and an upward force is applied by the vertical movement cylinder 17, so the nozzle 12 and the nozzle receiver 8 are maintained in a connected state and the sliding gate 5 is moved. Load resistance (moves) as it moves.

Next, an explanation will be given of the operation of separating the nozzle 12 and the nozzle receiver 8 when the molten steel in the container 1 has finished flowing into the tundish 2 entirely or by a predetermined amount and the container 1 is rotated again by the swirling tower device. A command is given by the control device to operate the opening/closing cylinder 6 to slide the sliding gate 5 along the bottom surface 3 of the container 1 and close the discharge hole 4.

At this time, as well, the nozzle 12 and the nozzle receiver 8
moves without load resistance as the sliding gate 5 moves while maintaining the connected state.

Next, by discharging the pressure supply from the vertical movement cylinder 17 and the longitudinal movement cylinder 27 or switching the supply direction, the arm support 18 moves downward around the pivot pin 16, while the arm 20 moves back and forth. When the rod 26 of the dynamic cylinder 27 retreats, the sliding block 25 pushes the externally applied locking tool 24 and retreats, and as a result, the nozzle 12 gradually moves away from the nozzle holder 8 and reaches the diagonal lower blade position, automatically It then stops and waits for the next container 1 containing molten steel to be rotated and transferred by the swirling tower device.

During this standby, the stop plate 3 of the support body 15 prevents the arm support 18 from rotating more than necessary in the horizontal direction for some reason.
This is prevented by hitting the stopper 33 fixed to the frame 14.

As is clear from the above description, according to the nozzle automatic connection and separation device of the present invention, the arm supported by the freely rotating roller 19 of the arm support 18 that can swing vertically and horizontally is controlled by the action of the horizontal guiding mechanism. When the arm 20 moves forward, the tentacle 23 at the tip of the arm 20 comes into contact with and is guided by the tentacle guide 11 of the sliding gate 5.
Due to the action of the upward guidance mechanism, that is, when the arm support 18 is raised, the nozzle L/12 is guided in contact with the nozzle guide frame 10 of the sliding gate 5, so that the nozzle 1
2 and the nozzle receiver 8 are accurately and smoothly aligned, and when the nozzle 12 and the nozzle receiver 8 are connected, the locking tool 24 of the arm 20
Since the cylinder 270 for longitudinal movement and the sliding block 25 of the rod 26 are separated from each other, the arm 20 can move freely without being subjected to sliding resistance within the cylinder 27 for longitudinal movement. The load resistance of the container 1 becomes smaller and the discharge hole 4 of the container 1 becomes smaller.
Opening and closing can be easily adjusted.

FIGS. 5 and 6 show a standby state of another embodiment of the invention.

The points that differ from the previous embodiment are that the arm support 18 can be forcibly rotated in the horizontal direction by the horizontal rotation cylinder 34, and that the attachment position and attachment direction of the tentacle guide 11 to the sliding cage 5 are different. The point is that only one locking tool 24 is fixed to the arm 20, and the end of the frame 30 is used as the remaining one locking tool.

This embodiment is different from the previous embodiment in the operation when connecting the nozzle 12 and the nozzle receiver 8. After the container 1 is stopped, the arm support 18 is rotated in the horizontal direction by the horizontal rotation cylinder 34, and the tentacle 23 is guided by the tentacle. 11, the other connection and separation operations and their effects are the same as in the previous embodiment.

Further, in the embodiments shown in FIGS. 3 and 4, one sliding block 25 and two locking devices 24 are provided, but one locking device 24 is provided, and sliding blocks are provided on both sides of the locking device 24. It is also possible to arrange 25 each.

[Brief explanation of drawings]

Fig. 1 is a plan view of the main part of the conventional device, Fig. 2 is a sectional side view of the main part of the same conventional device, Fig. 3 is a plan view of the main part of the present invention, and Fig. 4 is a side view of the main part of the same. Cross-sectional view, Figures 5 and 6
The figures are explanatory diagrams showing the standby state of another embodiment at positions corresponding to FIGS. 3 and 4, respectively. 1... Container, 3... Bottom, 4...
...Discharge hole, 5...Sliding cage, 7
...... Passing hole, 8... Nozzle receiver, 10
... Nozzle guide frame, 11 ... Tentacle guide, 12 ... Nozzle, 14 ... Frame, 15
......Support, 17...Vertical movement cylinder, 18...Arm support, 19...Roller, 20...Arm, 22. ...Nozunogie, 23...Tentacle, 24. River...Locking tool,
25...Sliding block, 26...
...Rod, 27...Cylinder for longitudinal movement.

Claims (1)

[Claims] 1. An automatic nozzle connection device that attaches and detaches a nozzle to a nozzle receiver protruding around the exit of a sliding gate that is slidably provided on the bottom of a container and that opens and closes a discharge hole at the bottom of the container. a nozzle guide frame provided around the nozzle receiver of the sliding gate and having a wheel surface with an umbrella-shaped interior opening; a tentacle guide provided on the sliding gate with the opening facing toward the nozzle guide frame side and the open portion facing outward; and a tentacle guide provided near the container in the direction from the passage hole of the sliding cage to the tip of the tentacle guide. a pedestal, a support provided vertically and rotatably in the horizontal direction on the pedestal, an arm support provided on the support to be freely rotatable in the vertical direction, and one end of which is rotatably supported by the arm support. a cylinder for vertical movement whose other end is rotatably supported by the support; a plurality of rollers rotatably provided on the arm support; an arm held by the rollers so as to be movable back and forth toward the container; a nozzle support provided at the tip of the arm so as to be horizontally rotatable and returnable to a predetermined position; and a distance from the center of the nozzle support position of the nozzle support to the center of the passage hole and the tip of the tentacle guide. A tentacle protruding above the arm at approximately the same location, a locking device fixed to the arm, and a sliding block loosely fitted to the front arm so that it can be held and separated from the locking device. , a cylinder for longitudinal movement that has a rond to which the sliding block is fixed and is fixed to the arm support, and the sliding block and the retainer are separated from each other when the nozzle and the nozzle receiver are connected. A nozzle automatic connection and separation device characterized by having the following configuration.