JP2801992B2 - Steel tap spout automatic insertion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention is, tapping spout automatic insertion device, and more particularly, immediately prior to tapping from the converter, relates to an apparatus for automatically inserting the tapping spout to spout.

[0002]

2. Description of the Related Art Generally, steel refined in a converter is sent to a secondary refining process such as RH degassing or a solidification process such as continuous casting, which is the next process.
Is tilted to a substantially horizontal state, so that it is transferred from the tapping port 2 to the ladle. Incidentally, slag 4 containing impurities remains on the upper part of refined steel 3 in converter 1, and FIG. 10 (B)
The slag 4 flows out to the ladle at the beginning of tapping as shown in FIG. 10 or at the end of tapping after the steel 3 flows out at the tilting position shown in FIG.

Conventionally, as a slag outflow prevention method, a method of inserting a stopper into a taphole from the inside of a converter (Japanese Patent Publication No. Sho.
1-60886), and a method of injecting compressed gas from outside the converter to the tap hole (Japanese Patent Publication No. 55-47311).
Various measures are adopted. However, all of these measures relate to the end of tapping, and no effective countermeasures have been found for the prevention of slag outflow at the beginning of tapping. However, a thermally expandable and heat-softening tapping tap having ceramics as a main component has been provided (see Japanese Patent Application Laid-Open No. 2-1262). When the converter 1 is tilted, the tapping tap is previously set. If the slag is inserted into the tap hole 2, it is possible to prevent slag from flowing out at the beginning of tapping. When the tapping plug of this type is inserted into the tapping port 2, it expands and closes the tapping port 2. When the converter 1 is tilted, it softens at the temperature of the steel 3 and separates from the tapping port 2. However, the insertion of the tapping tap has to be manually performed, and the work efficiency is not only low but also the risk is high.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to automatically insert a tapping tap into a taphole of a converter, thereby reliably preventing slag from flowing out at the beginning of tapping. It is to provide a device which can do it. To achieve these goals,
Tapping spout automatic insertion device according to the present invention, an arm member which detachably steel spout at the tip exit, the arm member is advanced and retracted in the longitudinal direction, the hot water of the converter the tapping spout by advancing The apparatus includes a first driving unit for inserting the arm member into the outlet, a second driving unit for moving the arm member up and down, and a third driving unit for moving the arm member in a direction substantially perpendicular to the forward direction.

[0005] The tapping tap is chucked to the tip of the arm member, and is inserted into the taphole of the converter by advancing the arm member by the first driving means. The position (height and lateral direction) of the tapping hole varies, and the second driving means and the third driving means move the arm member up and down or move on a horizontal plane to cope with this dispersion. Adjust to match the tap.

According to the above-described apparatus, the tapping tap can be automatically and reliably inserted into the tapping hole of the converter to prevent slag from flowing out at the beginning of tapping. In addition, the workability is significantly improved and the danger is eliminated as compared with the case where the operator inserts by hand. Further, in the tapping spout automatic insertion device according to the present invention is preferably provided with a one by one tapping spout tapping spout <br/> supply means for supplying to the predetermined position. Thus, the supply of the tapping tap , the chucking by the arm member, and the insertion into the taphole can be completely automated. In this case, out of the arm member
The third drive means may be used to move between the steel spout supply position and the tapping spout insertion position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic tapping device for tapping tap according to the present invention will be described below with reference to the accompanying drawings. 1 and 2, the tapping tap automatic insertion device includes an arm 10 for chucking the tapping tap 9, and a guide frame 20 that holds the arm 10 forward (in the direction of the arrow α) and retractable. , A trolley 30 for holding the guide frame 20 so as to be able to move up and down, a gantry 40 for supporting the trolley 30 so as to be able to move forward (in the direction of arrow β) and retreat, and a tapping tap 9 at a supply position F
And a supply unit 50 for supplying P.

This insertion device is installed on the converter 1 via a heat insulating wall 5, and a door 6 is mounted on the heat insulating wall 5 at the same height as the tap hole 2 so as to be opened and closed by a cylinder (not shown). I have. 3 and 4, the arm 10 has a square pipe shape, and a chuck 12 is attached to the tip of a rod 11 provided coaxially and integrally with the arm 10.
An air cylinder (not shown) is provided at the rear end of the arm 10, and the opening and closing operation of the chuck 12 is performed by the air cylinder. Further, the arm 10 is connected to the guide frame 2
The guide roller 21 is disposed between the upper and lower sides of the guide roller 21 and guided to move forward and backward in the arrow α direction. A pinion (not shown) driven by a motor 22 attached to the guide frame 20 meshes with a rack 13 fixed to a lower portion of the arm 10. Therefore, this motor 2
2 is rotated forward or backward, the arm 10 moves forward and backward, and its stroke ST (see FIG. 2) is changed
The length of the plug 9 from the initial position to the completion of insertion into the tap hole 2 of the converter 1 is set.

The carriage 30 holds the guide frame 20 up and down via a screw jack mechanism 31 on a shaft portion 23a of a bracket 23 protruding from the guide frame 20. The motor 32 provided on the carriage 30 has a drive shaft 33.
Through a screw jack mechanism 31. Accordingly, the arm 10 moves up and down together with the guide frame 20 by rotating the motor 32 forward or backward.
This raising and lowering is performed to adjust the arm 10 to the height of the tapping port 2 of the converter 1 and, if necessary, to insert the arm 10 into the tapping port supply position FP of the supply unit 50 described below. It is performed to descend from. A post 24 protrudes from the guide frame 20 adjacent to the bracket 23. The post 24 is slidably inserted into a guide member 34 provided on the carriage 30 so that the guide frame 20 can be moved up and down smoothly.

The gantry 40 is erected in a direction perpendicular to the arm 10, and the trolley 30 is mounted on a rail 41 laid thereon.
Wheels 35 are mounted. Then, a motor 36 provided on the carriage 30 is connected to a pair of wheels 35 located above in FIG. 4 via a driving wheel 37, and the carriage 30 can run in the direction of the arrow β or the opposite direction by this motor 36. is there. This traveling is performed to move the arm 10 from the insertion position IP to the tapping tap supply position FP as shown in FIG.

5, 6, and 7, a tapping tap supply unit 50 includes a stock frame 51 capable of stocking a plurality of tapping taps 9, a vertical frame 54, and a supply plate 55.
And a motor 56. The supply plate 55 can be moved up and down from the tapping tap standby position WP to the tapping tap supply position FP along the vertical frame 54 while being guided by the guide rollers 57. A chain (not shown) is stretched over sprockets 58 a and 58 b provided at the upper and lower portions of the vertical frame 54, and the sprocket 58 a is connected to a motor 56.

On the other hand, the stock frame 51 is installed slightly inclined toward the supply plate 55 waiting at the lower part,
The mounted tapping tap 9 can roll by its own weight. At the tip of the stock frame 51, a first stopper 53a driven by the first cylinder 52a and a second stopper 53b driven by the second cylinder 52b are provided. In FIG. 7, the stoppers 53a and 53b are normally raised, the first stopper 53a regulates the first tapping tap 9a, and the second stopper 53b is located after the second tapping tap 9b.
Restricts tapping taps . Then, the first stopper 53
When a is lowered, the first tapping tap 9a falls on the supply plate 55. After that, the first stopper 53a is raised,
When the second stopper 53b is lowered and raised, the tapping tap on the stock frame 51 is advanced by one pitch. The tapping tap transferred onto the supply plate 55 is lifted to the supply position FP by rotating the motor 56 forward, where it is chucked at the tip of the arm 10.

Next, the operation of the present insertion device will be described with reference to the time charts of FIGS. First, as a preliminary operation, a required number of tapping taps 9 are placed on the stock frame 51 in one refining process. In addition, as a preliminary operation, the first tapping tap 9 is placed on the supply plate 55, raised to the supply position FP, and chucked at the tip of the arm 10. Further, the next tapping tap 9 is kept waiting at the supply position FP.

When the tapping operation from the converter 1 is started, first, the door 6 is opened, and the motor 22 is driven to rotate forward at a high speed, whereby the arm 10 moves forward in the direction of the arrow α. Tapping tap 9
Is advanced to 4/5 of the stroke ST, the motor 22 is switched to the low-speed forward drive, and the arm 10
Moves forward at low speed. Next, the chuck 12 is opened, and the arm 10 is retracted. This means that the tapping tap 9 has been inserted into the tapping port 2. Retreat here is arm 1
0 is performed at high speed until immediately before returning to the initial position, and the door 6 is closed with the retreat of the arm 10.

Thereafter, by driving the motor 36 in the reverse direction, the carriage 30 moves backward from the insertion position IP to the supply position FP in the direction opposite to the arrow β. This retreat is also driven at a high speed until just before the stop. Next, the motor 22 is driven forward at a low speed, the arm 10 is advanced slightly, and the chuck 12 is brought into contact with the next tapping tap 9 waiting at the supply position FP. Then, the chuck 12 is closed, the tapping tap 9 is chucked, the arm 10 is retracted at a low speed, and the motor 36 is closed.
To drive the bogie 30 forward in the direction of arrow β by switching to high speed and low speed immediately before stopping. Arm 1 with this
0 stands by at the insertion position IP while holding the tapping tap 9 at the tip.

At the same time as the carriage 30 starts moving forward, the motor 56
Is driven in reverse, the supply plate 55 is lowered to the standby position WP, and the first stopper 53a is lowered. Thus, the tapping tap 9 on the stock frame 51 moves onto the supply plate 55. Next, the motor 56 is driven to rotate forward, and the supply plate 55 is raised to the supply position FP, where it is put on standby. further,
The first stopper 53a is raised, and the second stopper 53b is lowered and raised.
The tapping tap 9 is advanced by one pitch.

The above operation is repeated for each tapping operation. The tapping tap automatic insertion device according to the present invention is not limited to the above embodiment, but can be variously changed within the scope of the gist. In particular, the configuration of the tapping tap supply unit 50 is arbitrary, and a swingable link mechanism is used as a means for moving the supply plate 55 from the tapping tap standby position WP to the supply position FP for the arm 10. You may. Further, the arm 10, the guide frame 20, the carriage 30
Can be arbitrarily changed according to the working environment.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an automatic insertion device according to an embodiment of the present invention.

FIG. 2 is a front view schematically showing the automatic insertion device.

FIG. 3 is a front view showing an arm, a guide frame, a cart, and a gantry.

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

FIG. 5 is a plan view of a tapping tap supply unit.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a right side view of FIG. 6;

FIG. 8 is a time chart showing the operation procedure, showing the first half.

FIG. 9 is a time chart showing the operation procedure, and shows the latter half.

FIG. 10 is an explanatory diagram of a tapping operation from a converter.

[Description of Signs] 1 ... Converter 2 ... Tap hole 9 ... Tapping tap 10 ... Arm 12 ... Chuck 20 ... Guide frame 22 ... Arm drive motor 30 ... Truck 32 ... Guide frame lifting / lowering motor 36 ... Truck traveling motor 40 … Stand 50… Steel spout supply unit

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroaki Tsunori 1-9-1, Jokoji, Amagasaki-shi, Hyogo Prefecture Inside Osaka Fuji Industry Co., Ltd. (72) Inventor Shoji Imaoka 1-9-1, Jokoji, Amagasaki-shi, Hyogo Prefecture No. Inside Osaka Fuji Industrial Co., Ltd. (56) References Jiyo Sho 62-72600 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) C21C 5/46 103 C21B 7/12 303 F27D 3/14

Claims (3)

(57) [Claims] 1. A tapping tap automatic insertion device for automatically inserting a heat-expandable and heat-softening tapping tap into a taphole of a converter, wherein the tapping tap is provided at a tip of the tapping tap. A detachable arm member, first driving means for moving the arm member forward and backward in the longitudinal direction, and inserting the tapping tap into the tap hole of the converter by advancing, and raising and lowering the arm member An automatic tapping spigot insertion device, comprising: a second driving unit; and a third driving unit that drives the arm member in a direction substantially orthogonal to a forward direction thereof. 2. A further one by one tapping spout comprises a tapping spout supply means for supplying to the predetermined position, the third drive means tapping and tapping spout supply position the arm member The tapping spout automatic insertion device according to claim 1, wherein the device is moved between the spout insertion position. 3. The vehicle further comprises: a guide frame that holds the arm member so as to be able to move forward and backward, a bogie that holds the guide frame so as to be able to move up and down, and a gantry that supports the bogie so that it can run. The tapping hole according to claim 1,
Automatic stopper insertion device.