KR200222935Y1 - aluminum wire input apparatus in billate casting mold - Google Patents

Abstract

The present invention relates to an aluminum wire feeding device of a billet casting mold in which an aluminum wire is injected into a site where molten steel injection flows and a mold hot surface contact by precisely adjusting the position of the feeding guide to improve quality and prevent breakout. .

In an embodiment of the aluminum wire feeding device of the present invention billet casting mold, the base fixing plates 21 and 21a are attached and installed at the upper and lower ends of the back of the base 20, and the fixed block shaft grooves 22 and 22a are installed in the base 20. (1) is formed on each side, and a pair of wheel guide rails (23, 23a) are installed at both sides of the fixed block shaft grooves (22, 22a) at the rear of the base (20), and the wheel (24, 24a) are installed, and the wheels 24 and 24a are installed on both sides of the wheel shafts 25 and 25a, respectively, and are formed in pairs, and the fixed block shafts 26 and 26a are horizontally disposed in front of the wheel shafts 25 and 25a. ) Is installed, and fixing blocks 27 and 27a for supporting the hangers 29 are installed at the front end thereof, and the fixing blocks 27 and 27a are provided with hanger shaft grooves 28 for assembling the hangers 29. 28a) is formed, and the hanger 29 capable of adjusting the front and rear angles is installed, and the upper end of the hanger 29 A plurality of racks 30 are formed to adjust the left and right positions of the machine 17 and to prevent movement thereof, and shafts 31 and 31a for installing the hangers 29 are installed at both sides of the hanger 29, and the fixing block ( 27 and 27a are inserted into the hanger shaft grooves 28 and 28a, and a sprocket 33 is installed at the front end of the left hanger shaft 31 for power transmission when the front and rear angles are adjusted, and the right hanger shaft 31a is separated. A stopper 32 is installed to prevent the load, and a lifting device for adjusting the vertical movement to the bottom of the fixing blocks 27 and 27a is installed, and transfer parts 36 and 36a are mounted at the top thereof, and a gearbox at the bottom thereof. 35 and 35a are installed, and two gears 40 are engaged with each other, and rack gears 34 and 34a are installed at a lower portion thereof so that the gears 40 can be moved. A handle 41 for rotating the gear 40 is installed, and a hanger 29 is disposed on the left side of the gear shaft 37. The size of the power transmission sprocket 38 for front and rear angle adjustment is smaller than the sprocket 33 installed on the hanger shaft 31 so that the front and rear angle adjustment of the hanger 29 is made fine compared to the vertical movement. The sprockets 38 and the sprockets 33 installed on the hangers 29 are preferably connected to the chain 39 for power transmission.

Description

Aluminum wire input apparatus in billate casting mold

The present invention relates to an aluminum wire feeding device of a billet casting mold, and more specifically, by precisely adjusting the position of the feeding guide, the aluminum wire is injected into the site where the molten steel injection flows and the mold bath surface to improve the quality and break out. The present invention relates to an aluminum wire input device of a billet casting mold for preventing occurrence.

In general, in the continuous casting of the billet, since the small mold 12 of about 120 × 120 mm is used, the tundish 11 nozzle (not shown) uses a small diameter (15.0 to 15.5Φ), thereby turning during casting. The dish nozzle is closed.

For this reason, billet continuous casting should be cast in a rimmed steel state that allows dissolved oxygen in the molten steel.

However, when casting in a state where dissolved oxygen is high in molten steel, bubbles are formed in the mold 12, resulting in pin holes, which may lead to product defects or unstable solidification cells (shells). A breakout (break out) of the fragile solidification surface is formed and the molten steel in the mold flows to the equipment side, causing the molten steel and the equipment to fuse.

In order to prevent such a phenomenon, in the billet continuous casting, the aluminum wire 18 is supplied to the molten steel injection stream 13 injected into the mold 12 in the billet continuous casting to deoxidize dissolved oxygen in the molten steel.

Also, in order to supply the aluminum wire 18 to the molten steel injection stream 13, the fixing plate 16 is welded and attached to the front of the tundish 11 as shown in FIGS. 1 and 2, and the guide tube 15 is mounted thereon. One fastener 17 is inserted to adjust the feed position of the aluminum wire 18.

The aluminum wire 18 needs to be precisely introduced at the position 20 where the molten steel infusion flow 13 and the molten steel molten metal surface 14 are in contact with each other, thereby increasing the deoxidation effect. 18) or aluminum is supplied to the molten steel bath 14 in the mold, the deoxidation efficiency is lowered and a breakout occurs due to the imbalance of dissolved oxygen in the molten steel in the mold due to pinhole generation and partial deoxidation.

When supplying the aluminum wire 18 by inserting the fixing device 17 into the fixing plate 16, the supply position cannot be adjusted accurately. Therefore, the aluminum wire 18 contacts the molten steel injection stream 13 and the hot water surface 14 accurately. It is not supplied to the portion 20 or supplied to the molten steel in the mold 14, bubbles are formed in the mold 12 due to the lack of deoxidation, which causes breakout, causing the casting to stop, and the aluminum wire 18 It is very difficult to accurately adjust the supply position of, and there is a problem that the workload is increased because a lot of effort must be made to accurately adjust.

Therefore, the present invention has been devised to solve the conventional problems as described above, in order to supply the aluminum wire to the molten steel injection flow, it is possible to precisely adjust the supply position and to easily and quickly adjust the quality to prevent pinholes Its purpose is to improve productivity by preventing breakouts and to reduce the workload by the convenience of work.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram of the operation | work which is supplying aluminum wire to a mold by fixing the guide tube to the conventional aluminum wire input plate.

2 is a perspective view of a conventional aluminum wire input plate.

Figure 3 is a perspective view showing the front base of the present invention the aluminum wire input device.

Figure 4 is a perspective view of the back of the base of the present invention the aluminum wire input device.

Figure 5 is a perspective view of the vertical movement device of the present invention aluminum wire input device.

6 is a perspective view of a state in which the vertical movement device of the present invention aluminum wire input device is installed on the base.

7 is a perspective view of a hanger of the present invention aluminum wire input device.

8 is a perspective view of a state in which a hanger of the present invention aluminum wire feeding device is installed in a fixing block.

Figure 9 is a perspective view of the completed state by assembling the front and rear angle adjustment device and the vertical operation device of the present invention aluminum wire input device.

10 is a perspective view of the gear portion of the vertical operation of the present invention the aluminum wire input device.

Figure 11a is a perspective view of the fixing key installed on the present invention aluminum wire guide tube holder.

Figure 11b is a perspective view of the guide tube is installed in the present invention fixture.

12 is a perspective view of fixing the guide tube using a fixture to the present invention aluminum wire input device.

Figure 13 is a schematic diagram of the operation of injecting aluminum wire into the mold using the present invention the aluminum wire input device in a tundish.

14 is a state diagram of the aluminum input position when the angle is adjusted to the lower and rear using the present invention the aluminum wire input device.

Figure 15 is a state of the aluminum injection position when the angle of elevation and the front side using the present invention the aluminum wire input device.

Figure 16 is a state diagram showing the aluminum insertion position moving direction in the vertical and horizontal angle adjustment and left and right adjustment of the present invention.

<Explanation of symbols for main parts of the drawings>

10 ladle 11: tundish 12 mold

13 molten steel infusion 14 molten steel

15: guide tube 16: fixed plate

17: fixture 18: aluminum wire

19: movement prevention key 20: base

21: base fixing plate 22: fixed block shaft operating groove

23: wheel guide rail 24: wheel

25: wheel shaft 26: fixed block shaft

27: fixed block 28: hanger shaft groove

29: hanger 30: rack 31: hanger shaft

32: stopper 33,38: sprocket 34: rack gear

35 gear box 36 transfer 37 gear shaft

39: chain 40: gear 41: handle

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Embodiment of the aluminum wire injection device of the present invention billet casting mold,

Base fixing plates 21 and 21a are attached and installed at upper and lower ends of the rear surface of the base 20, and one fixed block shaft groove 22 and 22a is formed at each side of the base 20, respectively. A pair of wheel guide rails 23 and 23a are installed at both sides of the fixed block shaft grooves 22 and 22a, and wheels 24 and 24a are installed to enable vertical positioning. The wheels 24 and 24a are wheel shafts. (25, 25a) is installed on both sides of the pair consisting of a fixed block shaft (26, 26a) horizontally installed in front of the wheel shaft (25, 25a) fixed to support the hanger (29) at its tip Blocks 27 and 27a are installed, hanger shaft grooves 28 and 28a for assembling the hanger 29 are formed in the fixing blocks 27 and 27a, and hangers 29 capable of adjusting the front and rear angles are provided. Is installed, a plurality of racks 30 for the left and right position adjustment and movement prevention of the fixing device 17 is formed on the upper end of the hanger 29, Shafts 31 and 31a for installing the hangers 29 are installed at both sides of the hanger 29, and are inserted into the hanger shaft grooves 28 and 28a of the fixing blocks 27 and 27a, and the left hanger shaft ( 31) The sprocket 33 is installed at the front end for power transmission when the front and rear angles are adjusted, and the stopper 32 is installed at the right hanger shaft 31a to prevent separation, and the lower end of the fixing blocks 27 and 27a. A lifting device for adjusting the vertical movement is installed, and transfer parts 36 and 36a are mounted at the upper part thereof, gear boxes 35 and 35a are installed at the lower part thereof, and two gears 40 are engaged with the inside thereof. Rack gears 34 and 34a are installed at a lower portion thereof to allow movement of the gear 40, and a handle 41 for rotating the gear 40 is installed at the right side of the gear shaft 37, and the gear shaft 37 On the left side, the power transmission sprocket 38 for adjusting the front and rear angles of the hanger 29 is compared with the vertical movement. The sprocket 33 provided in the sprocket 38 and the hanger 29 is installed to have a smaller size than the sprocket 33 provided in the hanger shaft 31 so that the front and rear angle adjustment of the hanger 29 is made fine. It is preferred to be connected to the chain 39 for power transmission.

As shown in FIGS. 3 and 4, base fixing plates 21 for attaching the base to the tundish 11 are respectively installed on the upper and lower back surfaces of the base 20, and fixed block shaft grooves 22 and 22a are provided at both sides. These are formed one by one, the wheel guide rails (23, 23a) are installed on both sides of the fixed block shaft grooves (22, 22a) on the back of the base (20).

As shown in FIG. 5, the wheels 24 and 24a are paired around the wheel shafts 25 and 25a, respectively, and fixed block shafts 26 and 26a are installed in front of the wheel shafts 25 and 25a. At the front end of the fixed block shafts 26 and 26a, fixing blocks 27 and 27a for assembling and supporting the hanger 29 are installed.

The moving device configured as described above is mounted on the base 20 as shown in FIG. 6, and the wheels 24 and 24a are inserted into the wheel guide rails 23 and 23a installed at the rear of the base 20, and the fixed block shaft is installed. The fixing block shafts 26 and 26a are installed toward the front surface of the base through the grooves 22 and 22a.

7 is a hanger part 29 designed to facilitate front and rear angle adjustment and left and right position adjustment. A hanger 29 is provided at the upper end of the hanger 29 to prevent the left and right position adjustment and movement of the holder 17. A plurality of hangers 29 are provided on both sides of the hangers 29, and the shafts 31 and 31a for installing the hangers 29 are installed.

As shown in FIG. 8, the shafts 31 and 31a of the hanger 29 are inserted into and installed in the hanger shaft grooves 28 and 28a formed in the fixed blocks 27 and 27a, and the hanger 29 shaft 31, 31a) On the left side, a sprocket 33 for transmitting power to move the hanger 29 is installed at the front and rear angle adjustment, and on the right side, a stopper 32 is installed to prevent the hanger from being separated.

As shown in FIG. 9, the upper and lower actuators are installed below the fixing blocks 27 and 27a. The upper and lower actuators push up the fixing blocks 27 and 27a or support the fixing blocks 27 and 27a. There is a transfer (36,36a) that serves to give, the gearbox (35, 35a) is installed under the two gears (35, 35a) inside the two gear 40, as shown in Figure 10 Is interlocked.

Rack gears 34 and 34a for lowering the gear 40 to move when the gear rotates are attached to the base 20, and a handle for rotating the gear 40 to the gear shaft 37. 41 is installed, the sprocket for transmitting power to the sprocket 33 is installed on the hanger shaft 31 to the left and right of the gear shaft 37 and the forward and backward operation of the hanger 29 is interlocked at the same time. (38) is installed, the sprocket 33 and the sprocket 38 is smaller than the sprocket 33 installed on the hanger shaft 31 so that the front and rear angle adjustment of the hanger 29 is made fine compared to the vertical movement. Are connected to each other by chains.

11 is inserted into the rack 30 of the hanger 29 as shown in FIG. 11 to facilitate the adjustment of the left and right position and to install a fixing key 19 to prevent slipping, as shown in Figure 12 aluminum wire guide tube 15 Insert the fixture 17 is installed in the hanger 29 of the aluminum wire insertion guide fixture.

Referring to the operation of the above configuration is as follows.

The aluminum wire input device is fixedly installed on the tundish 11, and when the tundish 11 is moved to the top of the mold 12 to start the continuous casting, the guide tube is attached to the aluminum wire input device attached to the tundish 11. The fastener (17) equipped with (15) is inserted into the hanger (30).

When casting is started and molten steel is injected into the mold 12, the injection of aluminum wire 18 is started. When the injection of aluminum wire 18 is started, the position of the aluminum wire 18 is confirmed, and after the fixing position 17 is moved to the left and right, the center is moved. In this case, when the aluminum wire 18 is inclined to the right side and is introduced into the molten steel inlet 14 of the molten steel injection stream 13, the fixing unit 17 is moved to the left to insert the aluminum wire 18. The feeding position moves in the direction of the arrow as shown in 16 (C).

On the contrary, when the aluminum wire 18 is inclined to the left side and is injected into the left molten steel surface 14 of the molten steel infusion flow 13, the fixing unit 17 is moved to the right to insert the aluminum wire 18 into FIG. As in d), the feeding position moves in the direction of the arrow. At this time, the fixing key 18 installed in the fixing device 17 is inserted into the rack 30 of the hanger 29 so that the fixing device 17 does not move from side to side.

When the aluminum wire 18 is placed at the upper end of the molten steel injection stream 13 as shown in FIG. 14A, the handle 41 is turned clockwise, and the handle 41 is turned clockwise. When rotated, the shaft 37 rotates and the gear rotates. When the gear 40 rotates, the transfer gear 36 and 36a descends while the rack gears 34 and 34a descend by the interlocking gear. The assembled fixing blocks 27 and 27a are lowered by their own weight and the wheels 24 and 24a installed on the back of the base 20 are rotated so that the hanger 29 descends and the aluminum wire 18 is lowered. .

At the same time, as the sprocket 38 installed on the left side of the gear shaft 37 rotates the sprocket 33 installed on the hanger 29 connected by the chain in a clockwise direction, the hanger 29 is rotated backwards. Since the aluminum feeding position moves in the direction of the arrow as shown in (A), the aluminum wire 18 is introduced into the feeding proper position 19 as shown in FIG.

On the contrary, when the feeding position of the aluminum wire 18 is placed in front of the molten steel injection stream 13 as shown in FIG. 15A, the handle 41 is turned counterclockwise, and the handle 41 is turned counterclockwise. Turning in the direction rotates the gear while the shaft 37 rotates.

When the gear 40 is rotated, the gears 36 and 36a are raised by the gears which engage with the gears, and the fixed blocks 27 and 27a on which the hangers 29 are assembled are transferred. Since 36a is pushed up, wheels 24 and 24a installed on the back of the base 20 are rotated so that the hanger 29 is raised and the aluminum wire 18 is pushed back.

At the same time, as the sprocket 38 installed on the left side of the gear shaft 37 rotates the sprocket 33 installed on the hanger 29 connected by the chain in the counterclockwise direction, thereby rotating the hanger 29 forward.

In this case, since the aluminum feeding position moves in the direction of the arrow as shown in FIG. 16B, the aluminum wire 18 is introduced into the feeding proper position 19 as shown in FIG. 15B.

As described above, according to the present invention, the deoxidation of molten steel injection streams is made perfectly by precisely adjusting and supplying the aluminum wire to be supplied, thereby improving the product quality by preventing pinholes caused by deoxidation shortage. It is possible to reduce the work load by preventing the breakdown of equipment, such as the breakout, and by easily adjusting the aluminum wire supply position in a short time.

Claims (1)

Base fixing plates 21 and 21a are attached and installed at upper and lower ends of the rear surface of the base 20, and one fixed block shaft groove 22 and 22a is formed at each side of the base 20, respectively. A pair of wheel guide rails 23 and 23a are installed at both sides of the fixed block shaft grooves 22 and 22a, and wheels 24 and 24a are installed to enable vertical positioning. The wheels 24 and 24a are wheel shafts. (25, 25a) is installed on both sides of the pair consisting of a fixed block shaft (26, 26a) horizontally installed in front of the wheel shaft (25, 25a) fixed to support the hanger (29) at its tip Blocks 27 and 27a are installed, hanger shaft grooves 28 and 28a for assembling the hanger 29 are formed in the fixing blocks 27 and 27a, and hangers 29 capable of adjusting the front and rear angles are provided. Is installed, a plurality of racks 30 for the left and right position adjustment and movement prevention of the fixing device 17 is formed on the upper end of the hanger 29, Shafts 31 and 31a for installing the hangers 29 are installed at both sides of the hanger 29, and are inserted into the hanger shaft grooves 28 and 28a of the fixing blocks 27 and 27a, and the left hanger shaft ( 31) The sprocket 33 is installed at the front end for power transmission when the front and rear angles are adjusted, and the stopper 32 is installed at the right hanger shaft 31a to prevent separation, and the lower end of the fixing blocks 27 and 27a. A lifting device for adjusting the vertical movement is installed, and transfer parts 36 and 36a are mounted at the upper part thereof, gear boxes 35 and 35a are installed at the lower part thereof, and two gears 40 are engaged with the inside thereof. Rack gears 34 and 34a are installed at a lower portion thereof to allow movement of the gear 40, and a handle 41 for rotating the gear 40 is installed at the right side of the gear shaft 37, and the gear shaft 37 On the left side, the power transmission sprocket 38 for adjusting the front and rear angles of the hanger 29 is compared with the vertical movement. The sprocket 33 provided in the sprocket 38 and the hanger 29 is installed to have a smaller size than the sprocket 33 provided in the hanger shaft 31 so that the front and rear angle adjustment of the hanger 29 is made fine. Aluminum wire injection device of the mold for casting billet, characterized in that connected to the chain 39 for power transmission.