KR20040100431A - Roll device of casting plant capable of adjusting alignment of the roll significantly - Google Patents

Abstract

PURPOSE: To provide a roll device of casting plant capable of easily adjusting alignment of rolls to easily replace copper plate of the mold, reduce wear of the copper plate of the mold and adjust alignment between the mold and the foot rolls and bend rolls promptly and accurately by installing foot rolls integrated with a mold on a bend roll device. CONSTITUTION: In a roll device(1) comprising foot rolls(130) provided at a lower side of a mold(120) connected to a mold table(150) of casting plant, and a plurality of bend rolls(140) which are installed on a device(142) under the foot rolls, the roll device of the casting plant is characterized in that the foot rolls are installed on the bend roll device(142) in such a way that the foot rolls are separated from the mold, a sensor means(10) is installed in rear of the foot rolls to adjust alignment between the mold and the roll device according to the contact state of the foot rolls and casting slab, and the sensor means is electrically connected to a control part(30) electrically connected to a driving motor(32) for driving an eccentricity shaft(156) of the mold table.

Description

ROLL DEVICE OF CASTING PLANT CAPABLE OF ADJUSTING ALIGNMENT OF THE ROLL SIGNIFICANTLY}

The present invention relates to a player roll device such as a foot troll and a bend roll installed in a mold (mold) of a continuous casting machine of an ironworks factory, and more particularly, cast iron such as a billet or bromine discharged from the machine mold is a foot troll of a mold lower part. By adjusting the alignment of the player mold, foot troll and bend roll in accordance with the state of contact, the prolonged life of the copper machine mold and the need for the operator to measure the alignment of the roll device are eliminated. The present invention relates to a roll apparatus of an easy-to-align alignment machine that enables operation and prevents accidents of workers in advance, and in particular, improves product quality through the machine.

When molten steel, which has undergone steelmaking and smelting at a steel mill, is put into a mold of a continuous casting machine through a tundish, various types of slabs, for example, slabs, billets, and bromine, are cast. They are manufactured in a coil product, a steel sheet product, a wire rod product, etc. through various processes, and FIGS. 1 and 2 illustrate conventional player mold and roll devices.

Meanwhile, as shown in FIGS. 1 and 2, during casting operation of the cast steel 110 through the player 100, a foot roll 130 positioned below the copper plate 122 of the mold 120 and a lower portion thereof. And even if the alignment between the bend roll (bend roll) (140) disposed in the lower portion of the foot troll is poor adjustment during operation, the roll apparatus 130, 140 while the cast slab exits the machine mold If the alignment of these parts is not matched with the mold copper plate 122, since the roll apparatus cannot precisely support the high temperature solidification shell of the cast steel, bulging and crushing of the cast steel is caused, which causes the casting failure of the cast steel.

As a result, cracks are generated in the solidified shell of the cast slab, and a lot of cracks are generated in the cast finished product, and a blackout, which is a chronic problem of the player, is easily generated.

Accordingly, in the continuous casting operation, alignment should be periodically measured after casting. As shown in FIG. 3, the mold assembly 120 is placed on the mold table 150 to the settle hook 152 of the table. In the state in which the vertical gauge 160 is inserted into the mold copper plate 122 in close contact with the copper plate 122 in a state of being fixed by a hook, the gauge is attached to the uppermost bend roll 140 on the bend roll device 142. The operator 160 visually checks the gap between the gauge of the foot troll 130 and the bend roll 140 based on this, and visually adjusts the alignment between the mold and the roll apparatus.

That is, in the conventional alignment adjustment work between the player mold 120, the foot troll 130, and the bend roll 140, since the operator manually adjusts the gauge 160, the adjustment work is delayed. Of course, the accuracy of adjustment is particularly low, and there is a high possibility that a safety accident of an operator will occur.

As a result, the alignment between the player mold 120 and the roll apparatus 130, 140 is poor, wear of the mold copper plate 122 is severe, shortening the service life of the mold, as well as replacing the mold 120 in severe cases Maintenance costs are increased.

In addition, since the foot troll 130 is fixedly mounted to the lower part of the mold 120, alignment between the foot trolls 130 becomes easily defective due to the wear of the copper plate 122 of the mold 120. At the same time, the foot troll 130 is to be disassembled and assembled as well, which requires a considerable amount of working time in mold replacement as well as alignment adjustment work, and costs are increased.

In addition, the shaft handle 154 of the mold table 150 is visually measured using the vertical gauge 160 when the mold is replaced and after the casting is periodically adjusted based on the bend roll 140. The adjustment is difficult because the mold 120 must be moved and aligned in alignment while the eccentric shaft 156 is integrally rotated by manual operation.

As a result, the alignment between the mold 120 and the rolls 130 and 140 is not only difficult to be accurately adjusted in the related art, but also cannot be adjusted during casting, and when the alignment itself is poor, the cast slab solidified shell There have been various problems such as deterioration of the quality of cast steel itself due to cracking.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The object of the present invention is to install a foot troll integrated with a mold on a bend roll device, thereby facilitating operation by facilitating copper plate replacement of the mold. This provides a roll device for easy alignment adjustment which reduces the wear of the mold copper plate to extend the service life of the copper plate and, in particular, allows the alignment between the mold, foot troll and bend rolls to be adjusted quickly and precisely. It's there.

In addition, another object of the present invention, there is no need for the manual operation of the operator when adjusting the alignment between the mold and the roll device, the adjustment of the roll device of the player is easy to adjust the alignment to prevent the safety accident of the operator in advance To provide.

Further, another object of the present invention, the precision of the adjustment of the equipment is easy to control the accuracy, by eliminating various defects such as the bladder, the alignment of the machine is easy to adjust the alignment rolls to enable higher quality cast casting In providing a device.

1 is a schematic configuration diagram showing a conventional player

2 illustrates a bend roll of a conventional player,

(a) is a schematic front view

(b) a plan view

Figure 3 is a schematic diagram showing the alignment adjustment operation of the conventional player foot troll

Figure 4 is a block diagram showing a roll device of the player easy alignment adjustment according to the present invention

Figure 5 is a detailed view showing the operating state of the roll device of the player easy alignment adjustment of the present invention

6 is a main structural diagram showing a roll device of the player easy alignment adjustment of the present invention;

Figure 7 is an exploded perspective view showing a roll device of the player easy alignment adjustment of the present invention

Explanation of symbols on the main parts of the drawings

1 .... Roll device 10 .... Sensor means

12 .... Base 14 .... Buffer Cylinder

14a .... Cylinder body 14b .... Piston arm

14c .... Spring 16 .... Foot Troll Bracket

30 .... Control 32 .... Drive motor

34 ... gearbox 110 ... cast

120 .... Mold when playing 130 .... Foot Troll

140 .... bend roll 142 .... bend roll device

150 .... Mold Table 156 .... Eccentric Shaft

The present invention as a technical configuration for achieving the above object, in the foot troll provided on the lower side of the mold connected to the player mold table, and the roll apparatus of a plurality of bend rolls installed on the device below;

The foot troll is installed separately from the mold on the bend roll device, and a sensor means is provided at the rear of the foot troll to adjust the alignment of the mold and the roll apparatus according to the contact state between the foot troll and the slab. The sensor means is characterized in that it is electrically connected to the control unit electrically connected to the drive motor for driving the eccentric shaft of the mold table.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a block diagram showing a roll device of the player easy alignment adjustment according to the present invention, Figure 5 is a detailed view showing the operating state of the roll device of the player easy alignment adjustment of the present invention, Figure 6 It is a principal part structural diagram which shows the roll apparatus of the player of easy alignment adjustment of this invention, and FIG. 7 is an exploded perspective view which shows the roll apparatus of the player of easy alignment adjustment of this invention, The same structure as a conventional structure is shown with the same code | symbol.

The roll device 1 according to the present invention casts while contacting and supporting the cast steel, such as billets and bromine, passing through the copper plate 122 of the mold 120 of the player 100, cast 110 It includes a foot troll 130 and a bend roll 140 for conveying the same, but in the present invention to adjust the alignment as a conventional manual gauge 160 (Fig. 3) in the present invention without the mold 120 and the roll device (1) To adjust the alignment automatically.

Meanwhile, as shown in FIG. 4, in the player 100, the mold 120 is connected to the mold table 150 as the hook 152 to one side, and the mold table 150 is described in detail below. As described, the gearbox 34 and the eccentric shaft 156 inside the table are electrically connected to the control unit 30 and connected to the drive shaft of the drive motor 32 whose drive is controlled.

Therefore, when the driving motor 32 is driven, the driving force is transmitted through the gearbox 34, and the eccentric shaft 156 in the mold table 150 connected to the gearbox 34 is rotated, in which case the mold 120 is rotated. The position is adjusted so that the position of the mold copper plate 122 coincides with the foot foot 130 and the bend roll 140 of the lower side, the alignment is simply adjusted without the manual operation of the operator.

On the other hand, as shown in Figure 4 and 5, in the present invention, because the foot troll 130 is installed on the device 142, the bend roll 140 is installed, in the present invention unlike the conventional foot The troll 130 is separated from the mold 120.

Therefore, in the present invention, the operation of the mold 120 is not necessary because the operation of the foot 120 may be replaced as well.

At this time, as shown in Figure 6 and 7, the foot troll 130 is a bracket connected to the front of the buffer cylinder 14 is connected to the front of the base 12 installed on the top of the bend roll device 142 ( It is provided on 16) to support the slab passed through the mold copper plate.

In addition, the buffer cylinder 14 is mounted to the cylinder body 14a fixed horizontally in front of the base 12, the cylinder body 14a and is connected to the foottrol bracket 16 It is comprised including the spring 14c compressed by the piston arm 14b.

Next, as shown in FIGS. 4 to 6, the rear of the foot troll 130 is aligned between the mold 120 and the roll apparatus 1 according to the contact state between the foot troll 130 and the cast steel 110. The sensor means 10 to adjust the is provided.

In this case, the sensor means 10 is electrically connected to the control unit 30 is electrically connected to the drive motor 32 for driving the eccentric shaft 156 of the mold table 150, as shown in FIG. According to the contact state between the foot troll 130 and the cast steel 110, that is, the alignment is poor and biased to one side, the pressing force is detected by the sensor means 10 and sent to the control unit 30, the control unit 30 is By controlling the driving of the driving motor 32, the mold 120 is moved in accordance with the rotation amount of the eccentric shaft 156 and immediately the copper plate 122, the foot troll 130, and the bend roll 140 of the mold 120. Alignment of the adjustment is, at this time, the foot troll 130 and the bend roll 140 is always installed to be adjusted to match the alignment of course.

As illustrated in FIG. 7, the foot troll 130 may include a bracket 16 connected to the front of the buffer cylinder 14 connected to the front of the base 12 installed on the bend roll device 142. It is provided so that it may support the slab which passed through the mold copper plate.

However, as shown in FIGS. 5 to 7, the sensor means 10 is a load cell that senses the pressure according to the contact between the slab 110 and the foot troll 130 inside the buffer cylinder 14. It is configured, the alignment between the mold 120 and the roll device 1 of the foot troll 130 and the bend roll 140 through the mold table 150 is automatically adjusted.

On the other hand, as shown in Figure 7, the buffer cylinder 14, the cylinder body 14a fixed horizontally in front of the base 12, and the inside of the cylinder body 14a and the foot It consists of a spring (14c) is compressed by a piston arm (14b) connected to the troll bracket (16), the load cell as the sensor means 10 is built between the inside of the cylinder body (14a) and the spring (14c) The spring 14c is constituted by a disc spring.

On the other hand, the gear box 34 connected between the eccentric shaft 156 of the malt table 150 and the drive motor 32 as shown in Figure 4 is shown schematically in the drawing, the eccentric shaft 156 The worm wheel on the side and the worm gear on the side of the driving motor 32 are embedded so that the driving force of the motor is transmitted, or the bevel gears may be embedded.

6 and 7, the base 12 is integrally fixed vertically by welding or the like on the bend roll device 142, and the cylinder body 14a of the buffer cylinder 14 is The fixing bolt 20 fixed to the fastening groove 12a of the base 12 and passing through the center of the adjust bolt 18b to which the nut 18a is fastened firmly to the fastening groove 14a 'at the rear thereof. The cylinder piston arm 14b is fastened and fixed to the fastening groove 16a of the bracket 16 so that the bracket 16 flows with the elastic force of the spring 14c when the slab and the foot troll contact each other. The pressing force is configured to be transmitted to the load cell which is the sensor means 10.

In addition, although not shown in the drawing, when a compressive force is applied to the load cell, which is the sensor means 10, the change amount mV of the load cell 10 is transmitted to the control unit 30 through a converter, and this control unit 30 Drive rotation speed (rpm) of the drive motor 32 is adjusted through the configuration, and a reduction gear (not shown) is connected to the drive shaft between the drive motor 32 and the gear box 34.

Referring to the operation of the present invention made of the above configuration as follows.

As shown in FIGS. 4 to 7, the alignment between the mold 120, the foot troll 130, and the bend roll 140 is adjusted quickly and precisely, while eliminating the need for the operator's manual work to prevent safety accidents. In the meantime, the roll apparatus 1 of the player which is easy to adjust the alignment of the present invention in which the foot troll and the mold are separated to facilitate the equipment maintenance is as follows.

First, as shown in FIG. 4, the iron static pressure of the molten steel that is applied when passing through the lower end of the mold 120 in the player 100 is calculated. In the state of maintaining about 1M in 130) the iron static pressure on the foot troll 130 is 780kg / ㎠.

Accordingly, the load cell as the sensor means 10 and the spring 14c elastic force in the buffer cylinder 14 are selected based on this dimension, and the load cell is embedded in the buffer cylinder 14, and the buffer cylinder (using a liner or the like) is selected. The foot troll 130 is installed on the foot troll bracket 16 which is connected to the piston arm 14b of 14).

At this time, the load cell by the piston arm (14b) is set to a value of the iron static pressure 780kg / ㎠.

Next, as shown in FIG. 5, in the state in which the slab 110 discharged through the copper plate 122 of the mold 120 is removed to one side without being normally in contact with the foot troll 130, that is, the alignment is poor. When the cast steel 110 is in contact with the foot troll 130, the load cell 10 detects the pressing force according to the contact, in this case, if the greater or less than the setting value, the generated signal is transmitted to the control unit 30, the control unit In 30, the drive motor 32 is driven to rotate the eccentric shaft 156 of the mold table 150.

Accordingly, the position of the mold 120 connected to the mold table 150 is adjusted according to the rotation amount of the eccentric shaft 156, and if the alignment of the mold 120 and the foot troll 130 is adjusted, the sensor means ( The signal sensed by the load cell 10 is stopped so that the controller 30 stops the operation of the driving motor 32.

Therefore, according to the roll apparatus 1 of the player which the alignment adjustment of this invention is easy, through the mold 120, the foot troll 130, and the bend roll 140 in the state in which the cast piece 110 was more aligned, Since casting is produced, defects in the cast such as cracks are prevented in advance, thereby improving the quality of the cast.

As described above, according to the roll apparatus of the player which can easily adjust the alignment, the foot troll is separated from the mold and installed on the bend roll device, so that only the copper plate can be replaced, thereby simplifying the maintenance work of the mold facility. .

In addition, compared to the conventional operator using the gauge to adjust the alignment with the naked eye, using a sensor such as a rolled cell without the operator's work and automatically adjusts the mold table to the drive source, so that the alignment adjustment work can be precisely and quickly performed. At the same time, the alignment can be adjusted, especially during continuous casting operations, further improving the casting quality of the cast.

Finally, there is no need for the operator to prevent the safety accident of the operator and to reduce the cost of maintenance of the equipment to provide a number of excellent effects, such as to improve the overall productivity of the player.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (3)

In the foot troll 130 provided below the mold 120 connected with the player mold table 150, and the roll apparatus 1 of the bend roll 140 installed on the device 142 below, The foot troll 130 is installed separately from the mold on the bend roll device 142, Behind the foot troll 130 is provided with a sensor means 10 for adjusting the alignment between the mold 120 and the roll device 1 according to the contact state between the foot troll 130 and the cast piece 110, The sensor means 10 is electrically connected to the control unit 30 is electrically connected to the drive motor 32 for driving the eccentric shaft 156 of the mold table 150, the roll of the player easy alignment adjustment Device The foot troll 130 is mounted on a bracket 16 connected to the front of the buffer cylinder 14 connected to the front of the base 12 installed on the bend roll device 142. Is configured to support the cast steel that has passed through the mold copper plate, The sensor means 10 is made of a load cell for sensing the pressure according to the contact between the slab 110 and the foot troll 130 inside the buffer cylinder 14, the mold and the roll device alignment through the mold table Roll device for easy alignment adjustment, characterized in that configured to be adjusted 3. The shock absorbing cylinder (14) according to claim 2, wherein the buffer cylinder (14) is mounted in the cylinder body (14a) fixed horizontally in front of the base (12) and in the cylinder body (14a), and the foot troll bracket (16). And a spring 14c compressed by a piston arm 14b connected to The load cell, which is the sensor means 10, is a roll apparatus of an easy alignment adjustment player, characterized in that it is built in contact with the spring (14c) inside the cylinder body (14a).