JP7408247B2 - Slab guide device for continuous casting equipment - Google Patents

Description

The present invention relates to a slab guide device included in continuous casting equipment.

Continuous casting equipment includes a slab guide device that conveys slabs or dummy bars. The slab guide device includes a reference side drive roll and a non-reference side drive roll that are arranged opposite to each other with a slab or dummy bar in between, and a pressing means (for pressing the anti-reference side drive roll toward the reference side drive roll). fluid cylinder, etc.) (see Patent Document 1, etc.). The slab or dummy bar is held by the reference side drive roll and the anti-reference side drive roll.

The reference side drive roll is arranged along the pass line of the slab or dummy bar. The reference side drive roll is fixed to an immovable frame or the like in a roll stand, and does not move in a direction perpendicular to the pass line. The non-reference side drive roll is moved in a direction perpendicular to the pass line by being pressed by the pressing means, and is brought close to the slab or the dummy bar.

JP2008-229688A

In the above apparatus, there is a possibility that misalignment of the reference side drive roll may occur due to the following reasons.
For example, misalignment may occur due to machining errors in parts constituting the frame, bearing box, etc. that hold the reference side drive roll. Misalignment may occur due to errors in alignment adjustment of the reference side drive roll, eccentricity, bending, deformation, etc. of the reference side drive roll. Furthermore, as the reference side drive roll wears out during operation of the continuous casting equipment, the initial alignment cannot be maintained and misalignment may occur.

When misalignment of the reference side drive roll occurs, it is considered that the reference side drive roll deviates from the pass line. As shown in FIG. 3A, the reference side drive roll 102 shifted from the pass line L is separated from the slab (S) or the dummy bar and does not hold the slab (S) or the dummy bar.

Even if misalignment of the reference drive roll does not occur, if the slab or dummy bar is bent or deformed, the slab (S) or dummy bar separates from the reference drive roll 102, as shown in FIG. 4A. In this case, the slab (S) or the dummy bar is not held by the reference side drive roll 102.

In the above case, the slab or dummy bar is held by drive rolls other than the reference side drive roll 102, but loads on the other drive rolls (pulling force for pulling out the slab or dummy bar, falling of the slab or dummy bar) (force, etc.) increases, and the life of the drive means (reducer, universal spindle, electric motor, etc.) connected to these rolls may be shortened. Furthermore, since the number of rolls that hold the slab or dummy bar decreases, the holding force of the slab or dummy bar decreases, and there is a risk that the slab or dummy bar may fall.

An object of the present invention is to provide a slab guide device that can sufficiently hold slabs or dummy bars.

The slab guide device for continuous casting equipment of the present invention includes a reference side drive roll and a non-reference side drive roll that are arranged opposite to each other, and a reference side drive roll that presses the reference side drive roll toward the non-reference side drive roll. a side pressing means; and an anti-reference side pressing means for pressing the anti-reference side driving roll toward the reference side driving roll , the anti-reference side driving roll pressing the slab or dummy bar by the anti-reference side pressing means. anti-reference side pressing means whose pressing force is set to be larger than the force with which the reference side drive roll presses the slab or dummy bar by the reference side pressing means; and a position regulating means for regulating movement to the opposite side of the non-reference side drive roll .

According to the present invention, the slab or dummy bar can be sufficiently held.

FIG. 1 is a front view of a slab guide device of continuous casting equipment according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the slab guide device shown in FIG. 1 taken along line II-II. FIG. 2 is a schematic diagram of an existing slab guiding device. FIG. 1 is a schematic diagram of a slab guiding device according to a first embodiment of the present invention. FIG. 2 is a schematic diagram of an existing slab guiding device when the slab is deformed. It is a schematic diagram of the slab guide device concerning a 1st embodiment of the present invention when a slab is deformed. It is a figure which shows a part of front view of the slab guide device based on 2nd Embodiment of this invention. FIG. 5A is a sectional view taken along the line Vb-Vb of the slab guiding device shown in FIG. 5A. It is a schematic diagram of the slab guide device based on the modification of this invention.

[First embodiment]
FIGS. 1 and 2 show an example of a slab guide device included in continuous casting equipment. FIG. 2 shows a cross-sectional view taken along line II-II in FIG. 1.

In continuous casting equipment, molten steel is poured from a ladle into a tundish, is injected into a mold, and is pulled out from the bottom of the mold as a slab. The slab is pulled out by a slab guiding device 1 or the like shown in FIG. 1 or the like.

As shown in FIG. 1, the slab guide device 1 includes a housing 2, a reference side drive roll 3 and a non-reference side drive roll 4 housed in the housing 2, and a reference side pressing force that presses the reference side drive roll 3. and an anti-reference side pressing means 6 for pressing the anti-reference side drive roll 4. The reference side drive roll 3 and the anti-reference side drive roll 4 are rotated by being given a driving force by a drive device (not shown) or the like.

The slab guide device 1 pulls out the slab S or the dummy bar. FIG. 1 shows the slab guide device 1 pulling out the slab S. In this embodiment, the area on the side opposite to the reference side drive roll 4 with respect to the pass line L of the slab or dummy bar is referred to as "inside R ₁ ", and the area on the side opposite to the non-reference side drive roll 4 with respect to the pass line L The region (region on the reference side drive roll 3 side) is referred to as "outside R ₂ ". The "pass line" in this embodiment is one end near the reference side drive roll in the passage through which the slab or dummy bar passes. The "passage through which the slab or dummy bar passes" is a preset passage through which the slab or dummy bar originally passes. Note that passages created by intentionally changing the passages that slabs or dummy bars are supposed to pass through may cause unnecessary deformation of slabs, causing cracks on the surface and inside of slabs. This is undesirable because it causes distortion, which deteriorates the quality of the slab.

As shown in FIG. 2, the housing 2 includes a first side frame 11 and a second side frame 12 arranged on both sides of the reference side drive roll 3 and the non-reference side drive roll 4, and the first side frame 11 and the second side frame It has a first connecting plate 13 and a second connecting plate 14 that connect the side frames 12. The first side frame 11 and the second side frame 12 are arranged to sandwich the reference side drive roll 3 and the anti-reference side drive roll 4 in the axial direction of each roll.

A first hole 11A is formed in the first side frame 11. A first reference side bearing box 32 and a first non-reference side bearing box 72, which will be described later, are arranged in the first hole 11A. A second hole 12A is formed in the second side frame 12 (see FIG. 1). A second reference side bearing box 42 and a second non-reference side bearing box 82, which will be described later, are arranged in the second hole 12A.

As shown in FIG. 2, the reference side drive roll 3 includes a reference roll main body part 21 in contact with the slab S, a first reference side shaft part 22 and a second reference side shaft part 22 extending in the axial direction from both ends of the reference roll main body part 21. It has a reference side shaft portion 23. A reference side input shaft portion 51 is connected to the second reference side shaft portion 23 . The reference side input shaft section 51 is connected to a drive device (not shown). The reference side drive roll 3 is rotated by the drive device.

The first reference side shaft portion 22 is fitted into the first reference side bearing 31. The first reference side bearing 31 is housed in a first reference side bearing box 32 . The first reference side bearing box 32 rotatably supports the reference side drive roll 3. The first reference side bearing box 32 is arranged in the first hole 11A of the first side frame 11.

The second reference side shaft portion 23 is fitted into the second reference side bearing 41. The second reference side bearing 41 is housed in a second reference side bearing box 42 . The second reference side bearing box 42 rotatably supports the reference side drive roll 3. The second reference side bearing box 42 is arranged in the second hole 12A of the second side frame 12.

As shown in FIG. 2, the anti-reference side drive roll 4 includes an anti-reference roll main body portion 61 in contact with the slab S, and a first anti-reference side shaft portion extending in the axial direction from both ends of the anti-reference roll main body portion 61. 62 and a second non-reference side shaft portion 63. The non-reference side input shaft portion 52 is connected to the second non-reference side shaft portion 63 . The anti-reference side input shaft portion 52 is connected to a drive device (not shown). The drive device rotates the non-reference side drive roll 4.

The first non-reference side shaft portion 62 is fitted into the first non-reference side bearing 71 . The first anti-reference side bearing 71 is housed in a first anti-reference side bearing box 72 . The first anti-reference side bearing box 72 rotatably supports the anti-reference side drive roll 4 . The first anti-reference side bearing box 72 is arranged in the first hole 11A of the first side frame 11.

The second anti-reference side shaft portion 63 is fitted into the second anti-reference side bearing 81 . The second anti-reference side bearing 81 is housed in a second anti-reference side bearing box 82 . The second anti-reference side bearing box 82 rotatably supports the anti-reference side drive roll 4 . The second anti-reference side bearing box 82 is arranged in the second hole 12A of the second side frame 12.

The reference side pressing means 5 that presses the reference side drive roll 3 is a fluid cylinder having a cylinder body 5a and a piston rod 5b. The cylinder body 5a is attached to the first connecting plate 13. The piston rod 5b is disposed in the housing 2 through a hole (hole 13a shown in FIG. 2) formed in the first connecting plate 13. The piston rod 5b can reciprocate within the cylinder body 5a.

A reference side movable frame (connection member) 7 is attached to the end of the piston rod 5b. As shown in FIG. 2, the reference side movable frame 7 has a tapered portion 7a and a plate portion 7b wider than the tapered portion 7a.

The tapered portion 7a is attached to the piston rod 5b. The tapered portion 7a is formed in a tapered shape whose width increases as it moves away from the piston rod 5b. The tapered portion 7a is arranged between the first side frame 11 and the second side frame 12.

The plate portion 7b is arranged astride the first side frame 11 and the second side frame 12. One end of the plate portion 7b is arranged in the first hole 11A of the first side frame 11. One end of the plate portion 7b is attached to the first reference side bearing box 32. The other end of the plate portion 7b is arranged in the second hole 12A of the second side frame 12. The other end of the plate portion 7b is attached to the second reference side bearing box 42.

The first reference side bearing box 32 and the second reference side bearing box 42 are connected to the piston rod 5b of the reference side pressing means 5 via the reference side movable frame 7 including the taper part 7a and the plate part 7b.

A first position regulating portion (position regulating means) 91 is arranged in the first hole 11A of the first side frame 11. The first position regulating portion 91 and the plate portion 7b are arranged on the side opposite to the non-reference side drive roll 4 with respect to the first reference side bearing box 32 in the roll opposing direction in FIG. The first position regulating portion 91 is disposed on the opposite side of the non-reference side drive roll 4 with respect to the plate portion 7b in the roll opposing direction in FIG. The first reference side bearing box 32, the plate part 7b, and the first position regulating part 91 are arranged in the first hole 11A in the direction in which the reference side drive roll 3 and the anti-reference side drive roll 4 face each other (the rolls shown in FIG. They are lined up in order in the opposite direction) and in the direction away from the non-reference side drive roll 4.

The first position regulating portion 91 faces the inner wall 11s of the first side frame 11 in the roll opposing direction in FIG. The inner wall 11s is disposed on the opposite side of the non-reference side drive roll 4 with respect to the first position regulating portion 91 in the roll opposing direction in FIG. The first position regulating portion 91 is attached to the inner wall 11s. The first position regulating section 91 does not move.

A second position regulating portion (position regulating means) 92 is arranged in the second hole 12A of the second side frame 12. The second position regulating portion 92 and the plate portion 7b are arranged on the opposite side of the non-reference side drive roll 4 with respect to the second reference side bearing box 42 in the roll opposing direction in FIG. The second position regulating portion 92 is disposed on the opposite side of the non-reference side drive roll 4 with respect to the plate portion 7b in the roll opposing direction in FIG. The second reference side bearing box 42, the plate part 7b, and the second position regulating part 92 are inserted into the second hole 12A in the direction in which the reference side drive roll 3 and the anti-reference side drive roll 4 face each other (the rolls shown in FIG. They are lined up in order in the opposite direction) and in the direction away from the non-reference side drive roll 4.

The second position regulating portion 92 faces the inner wall 12s of the second side frame 12 in the roll opposing direction in FIG. The inner wall 12s is disposed on the opposite side of the non-reference side drive roll 4 with respect to the plate portion 7b in the roll opposing direction in FIG. The second position regulating portion 92 is attached to the inner wall 12s. The second position regulating section 92 does not move.

1 and 2 show the reference side drive roll 3 being arranged along the pass line L. At this time, the plate part 7b of the reference side movable frame 7 is in contact with the first position regulating part 91 and the second position regulating part 92 (see FIG. 2).
When "the reference side drive roll is arranged along the pass line", the surface of the reference side drive roll comes into contact with the slab S or dummy bar passing through the pass line. "The surface of the reference side drive roll is in contact with the slab S or dummy bar passing through the pass line" refers to the circumferential surface of the reference side drive roll 3 (the reference roll main body part 21 shown in FIG. 2) as shown in FIG. The part (surface X shown in FIG. 1) closest to the opposing non-reference side drive roll 4 on the circumferential surface is in contact with the slab S or dummy bar passing through the pass line.

As the piston rod 5b reciprocates within the cylinder body 5a of the reference side pressing means 5, the reference side movable frame 7 (tapered portion 7a, plate portion 7b), the first reference side bearing box 32, and the second reference side The side bearing box 42 and the reference side drive roll 3 move in the same direction as the movement of the piston rod 5b (direction perpendicular to the pass line L). The "direction perpendicular to the pass line L" in this embodiment is the direction in which the reference side drive roll 3 and the anti-reference side drive roll 4 face each other (the roll opposing direction in FIGS. 1 and 2).
Note that when the reference side drive roll 3 is arranged along the pass line L, as shown in FIG. Because it is in contact with the regulating portion 92, the reference side drive roll 3 changes from the state where it is disposed along the pass line L (the state shown in FIGS. 1 and 2) to the side opposite to the non-reference side drive roll 4 (the state shown in FIGS. It does not move to the outside R ₂ ) of the pass line L shown in 1.

The movable range (movable distance) of the reference side drive roll 3 is not particularly limited. The movable range of the reference side drive roll 3 may be a range that complements the alignment correction of the reference side drive roll, the amount of deformation of the slab, the amount of deformation of the dummy bar, etc., and is, for example, within 5 mm.

As shown in FIG. 2, the anti-reference side pressing means 6 that presses the anti-reference side drive roll 4 is a fluid cylinder having a cylinder body 6a and a piston rod 6b. The cylinder body 6a is attached to the second connecting plate 14. The piston rod 6b is disposed in the housing 2 through a hole (hole 14a shown in FIG. 2) formed in the second connecting plate 14. The piston rod 6b can reciprocate within the cylinder body 6a.

An anti-reference side movable frame 8 is attached to the end of the piston rod 6b. The non-reference side movable frame 8 has a tapered portion 8a and a plate portion 8b wider than the tapered portion 8a.

Tapered portion 8a is attached to piston rod 6b. The tapered portion 8a is formed in a tapered shape whose width increases as it moves away from the piston rod 6b. The tapered portion 8a is arranged between the first side frame 11 and the second side frame 12.

The plate portion 8b is arranged astride the first side frame 11 and the second side frame 12. One end of the plate portion 8b is arranged in the first hole 11A of the first side frame 11. One end of the plate portion 8b is attached to the first non-reference side bearing box 72. The other end of the plate portion 8b is arranged in the second hole 12A of the second side frame 12. The other end of the plate portion 8b is attached to the second anti-reference side bearing box 82.

As the piston rod 6b reciprocates within the cylinder body 6a in the anti-reference side pressing means 6, the anti-reference side movable frame 8 (tapered portion 8a, plate portion 8b), the first anti-reference side bearing box 72, The second anti-reference side bearing box 82 and the anti-reference side drive roll 4 move in the same direction as the movement of the piston rod 6b (direction perpendicular to the pass line L (roll opposing direction in FIGS. 1 and 2)). .

The force F ₁ (hereinafter referred to as "pressing force F ₁ of the anti-reference side drive roll 4") with which the anti-reference side driving roll 4 presses the slab S is applied by the anti-reference side pressing means 5. It is larger than the force F ₂ with which the reference side drive roll 3 presses the slab S (hereinafter referred to as "pressing force F ₂ of the reference side drive roll"). In order to make the pressing force F ₁ of the non-reference side drive roll 4 larger than the pressing force F ₂ of the reference side drive roll 3, for example, the following procedure is performed.
・The pressure P ₁ of the anti-reference side pressing means 6 and the pressure P _{2 of the reference side pressing means 5} are set to be the same pressure, and the inner diameter of the cylinder body 6a of the anti-reference side pressing means 6 is the same as the cylinder body of the reference side pressing means 5. Make it larger than the inner diameter of 5a.
- The inner diameter of the cylinder body 6a of the anti-reference side pressing means 6 and the inner diameter of the cylinder body 5a of the reference side pressing means 5 are the same diameter, and the pressure P ₁ of the anti-reference side pressing means 6 is the pressure of the reference side pressing means 5. Make it larger than P ₂ .

For example, hydraulic cylinders are adopted as the reference side pressing means 5 and the anti-reference side pressing means 6, and the inner diameter of the cylinder body 6a of the anti-reference side hydraulic cylinder (6) and the inner diameter of the cylinder body 5a of the reference side hydraulic cylinder (5) are Both are 250 mm, and when the supply pressure of the non-reference side hydraulic cylinder (6) is 18 MPa and the supply pressure of the reference side hydraulic cylinder (5) is 16 MPa, the pushing force of the anti-reference side hydraulic cylinder (6) is 90.1 tf, The pushing force of the reference side hydraulic cylinder (5) is 80.1 tf. The pushing force of the anti-reference side hydraulic cylinder (6) and the pushing force of the reference side hydraulic cylinder (5) act simultaneously. In this case, the slab S or dummy bar is pressed against the reference side drive roll 3 with a pressing force of 90.1tf-80.1tf=10.0tf.

The method of making the pressing force F ₁ of the anti-reference side drive roll 4 larger than the pressing force F ₂ of the reference side drive roll 3 is not limited to the above. The inner diameter of the cylinder body 6a of the anti-reference side pressing means 6, the inner diameter of the cylinder body 5a of the reference side pressing means 5, the pressure P1 of the anti-reference side pressing means ₆ , and the pressure _P2 of the reference side pressing means 5 are changed as appropriate. You may.

Next, with reference to FIGS. 3A to 4B, the existing slab guiding device and the slab guiding device according to this embodiment will be compared and explained.

FIGS. 3A and 3B show a case where the reference side drive roll deviates from the pass line L due to, for example, poor maintenance, machining errors, roll wear, etc. FIG. 3A shows a schematic diagram of an existing slab guiding device. FIG. 3B shows a schematic diagram of the slab guiding device according to this embodiment.

As shown in FIG. 3A, the existing slab guide device includes reference side drive rolls 101, 102, 103, anti-reference side drive rolls 111, 112, 113, and an anti-reference side pressing roller that presses the anti-reference side drive roll. means 121, 122, and 123. The existing slab guide device does not have a reference side pressing means for pressing the reference side drive roll. The reference side drive rolls 101, 102, and 103 are fixed to an immovable frame or the like in a roll stand, and do not move in the direction perpendicular to the pass line L (the direction in which the reference side drive roll and the anti-reference side drive roll face each other). The anti-reference side drive rolls 111, 112, 113 are moved in a direction perpendicular to the pass line L and brought close to the slab S by being pressed by the anti-reference side pressing means 121, 122, 123.

When the reference side drive roll 102 deviates from the pass line L due to misalignment of the reference side drive roll 102, the reference side drive roll 102 separates from the slab S. The slab S is not held by the reference side drive roll 102. The slab S is held only by the other reference side drive rolls 101, 103 and the anti-reference side drive rolls 111, 112, 113.

On the other hand, as shown in FIG. 3B, the slab guiding device according to the present embodiment presses the reference side drive rolls 201, 202, 203, the anti-reference side drive rolls 211, 212, 213, and the reference side drive roll. The reference side pressing means 231, 232, 233, the anti-reference side pressing means 221, 222, 223 that press the anti-reference side drive roll, the position regulating means (the "first position regulating part 91" and the "first position regulating part 91" shown in FIG. 2), 2-position regulating portion 92''). By being pressed by the reference side pressing means 231, 232, 233, the reference side drive rolls 201, 202, 203 move in the direction toward the opposing anti-reference side drive rolls 211, 212, 213 (the plate portion 7b shown in FIG. is movable in the direction away from the first position regulating section 91 and the second position regulating section 92 (to the right in FIG. 2). When the reference side drive rolls 201, 202, 203 are off to the outside _R2 of the pass line L, the reference side drive rolls 201, 202, 203 are brought closer to the pass line L by the reference side pressing means 231, 232, 233.

For example, when the reference side drive roll 202 deviates to the outside R ₂ of the pass line L, the reference side pressing means 232 moves the reference side drive roll 202 toward the anti-reference side drive roll 212 . The reference side drive roll 202 is arranged along the pass line L by contacting the slab S. Thereby, the slab S is held by all the drive rolls (reference side drive rolls 201, 202, 203, anti-reference side drive rolls 211, 212, 213) provided in the slab guide device.

The relationship between the pressing force of the reference side drive roll and the pressing force of the anti-reference side drive roll is shown below.
・Press force F 211 of anti-reference side drive roll ₂₁₁ >Press force F 201 of reference side drive roll ₂₀₁
・Press force F 212 of anti-reference side drive roll ₂₁₂ >Press force F 202 of reference side drive roll ₂₀₂
・Press force F 213 of anti-reference side drive roll ₂₁₃ >Press force F 203 of reference side drive roll ₂₀₃
As a result of the above, the slab S is pressed against the reference side drive rolls 201, 202, and 203, so that the slab S does not wobble or the like. The slab S now follows the pass line L.
Note that since the pressing force of the anti-reference side drive roll is greater than the pressing force of the reference side drive roll, the reference side drive rolls 201, 202, and 203 receive a force directed toward the outside _R2 of the pass line L, but the position regulating means (Refer to the "first position regulating section 91" and "second position regulating section 92" shown in FIG. 2), the reference side drive rolls 201, 202, 203 can move toward the outside _R2 of the pass line L. Regulated. Therefore, the reference side drive rolls 201, 202, and 203 are arranged along the pass line L.

Next, a case where the slab S is bent will be described with reference to FIGS. 4A and 4B. FIG. 4A shows a schematic diagram of an existing slab guiding device. FIG. 4B shows a schematic diagram of the slab guiding device according to this embodiment.

The existing slab guide device shown in FIG. 4A has the same configuration as the existing slab guide device shown in FIG. 3A. FIG. 4A shows a state in which the reference side drive rolls 101, 102, and 103 are arranged along a path line (not shown). In the part where the slab S is bent, the slab S and the reference side drive roll 102 are separated from each other. The slab S is not held by the reference side drive roll 102. The slab S is held only by the other reference side drive rolls 101, 103 and the anti-reference side drive rolls 111, 112, 113.

On the other hand, the slab guide device according to this embodiment includes reference side pressing means 231, 232, and 233, as shown in FIG. 4B. By being pressed by the reference side pressing means 231, 232, 233, the reference side drive rolls 201, 202, 203 move in the direction toward the opposing anti-reference side drive rolls 211, 212, 213 (the plate portion 7b shown in FIG. is movable in the direction away from the first position regulating section 91 and the second position regulating section 92 (to the right in FIG. 2). As shown in FIG. 4B, when the slab S is bent, the reference side pressing means 232 moves the reference side drive roll 202 toward the anti-reference side drive roll 212. The surface X ₂ of the reference side drive roll 202 contacts the slab S. The reference side drive roll 202 is arranged along the slab S. Thereby, the slab S is held by all the drive rolls (reference side drive rolls 201, 202, 203, anti-reference side drive rolls 211, 212, 213) provided in the slab guide device.

Although the case where the slab S is pulled out has been described above, the case where the dummy bar is pulled out is also the same as the case where the slab S is pulled out.

As described above, this embodiment provides the following effects.
As shown in FIGS. 1 and 2, the slab guide device 1 according to the present embodiment includes a reference side pressing means 5 that presses the reference side drive roll 3 toward the anti-reference side drive roll 4. The reference side driving roll 3 is movable in a direction perpendicular to the pass line L by the reference side pressing means 5. Even if the reference side drive roll 3 is separated from the slab or dummy bar, the reference side drive roll 3 can be brought into contact with the slab or dummy bar by the reference side pressing means 5, 231, 232, 233 (Fig. 3B, (See 4B).
The anti-reference side drive roll 4 is movable in a direction perpendicular to the pass line L by an anti-reference side pressing means 6 (see FIGS. 1 and 2). The non-reference side drive roll 4 is brought close to the slab or dummy bar by the anti-reference side pressing means 6.
As described above, the slab or dummy bar is held by all the drive rolls (reference side drive rolls 3, 201, 202, 203 and anti-reference side drive rolls 4, 211, 212, 213) provided in the slab guide device 1. can do. Thereby, the slab or dummy bar can be sufficiently held. In addition, since the load such as the pulling force and falling force of the slab or dummy bar is distributed to all drive rolls, the life of the drive means (not shown) connected to the drive rolls (reducer, universal spindle, electric motor, etc.) is shortened. There is no fear.

Further, in the above embodiment, the pressing force F ₁ of the anti-reference side drive roll is larger than the pressing force F ₂ of the reference side drive roll. If the pressing force F ₁ of the non-reference side drive roll and the pressing force F ₂ of the reference side drive roll are the same, the position of the slab or dummy bar will not be determined, and there is a risk that the slab or dummy bar will wander and come off the pass line. However, by pressing with the above-mentioned pressing force (F ₁ > F ₂ ), the slab or dummy bar is pressed against the reference side drive rolls 3, 201, 202, 203, and comes to follow the pass line L (Fig. 3B reference).

Note that even if the pressure is applied with the above-mentioned pressing force (F ₁ >F ₂ ), the first position regulating portion 91 and the second position regulating portion 92 shown in FIGS. 1 and 2 prevent the reference side drive roll 3 from reaching the pass line L. Movement to the outside R ₂ of is restricted. Therefore, the reference side drive roll 3 is arranged along the pass line L.
Specifically, when the reference side drive roll 3 is arranged along the pass line L, as shown in FIG. is in contact with the second position regulating portion 92 . Therefore, the reference side drive roll 3 changes from the state where it is disposed along the pass line L (the state shown in FIGS. 1 and 2) to the side opposite to the non-reference side drive roll 4 (the outside of the pass line L shown in FIG. 1). _R2 ).

[Second embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. 5A and 5B. The difference between the second embodiment and the first embodiment is that the reference side movable frame (connection member) 307 has a first hole 11A of the first side frame 11 and a second hole 12A of the second side frame first position regulating part 12. These are points that are not placed in the Note that the same components as in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 5A shows a front view of a part (reference side drive roll 3 side) of the slab guide device according to the second embodiment. FIG. 5B shows a cross-sectional view taken along line VIb-VIb in FIG. 5A.

The reference side drive roll 3 is rotatably supported by a first reference side bearing box 332 and a second reference side bearing box 342 (see FIGS. 5A and 5B). The first reference side bearing box 332 is arranged in the first hole 11A of the first side frame 11, as shown in FIG. 5B. The second reference side bearing box 342 is arranged in the second hole 12A of the second side frame 12.

The reference side movable frame (connection member) 307 has a tapered portion 307a and a plate portion 307b wider than the tapered portion 307a.

The tapered portion 307a is attached to the piston rod 5b of the reference side pressing means 5. The tapered portion 307a is arranged between the first side frame 11 and the second side frame 12.

The plate portion 307b is arranged between the first reference side bearing box 332 and the second reference side bearing box 342. One end of the plate portion 307b is attached to the first reference side bearing box 332. The other end of the plate portion 307b is attached to the second reference side bearing box 342.

The reference side pressing means 5, the first reference side bearing box 332, and the second reference side bearing box 342 are connected via the movable frame 307. The movable frame 307 (tapered part 307a and plate part 307b) is not arranged in the first hole 11A and the second hole 12A.

As shown in FIG. 5B, a first position regulating portion (position regulating means) 391 is arranged in the first hole 11A of the first side frame 11. The first position regulating part 391 is configured to position the non-reference side drive roll 4 relative to the first reference side bearing box 332 in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (the roll opposing direction in FIG. 5B). is placed on the opposite side.

The first position regulating portion 391 faces the inner wall 11s of the first side frame 11 in the roll opposing direction in FIG. 5B. The inner wall 11s is disposed on the opposite side of the non-reference side drive roll 4 with respect to the first position regulating portion 391 in the roll opposing direction in FIG. 5B. The first position regulating portion 391 is attached to the inner wall 11s. The first position regulating section 391 does not move.

As shown in FIG. 5B, a second position regulating portion (position regulating means) 392 is arranged in the second hole 12A of the second side frame 12. The second position regulating portion 392 is configured to position the non-reference side drive roll 4 relative to the second reference side bearing box 342 in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (the roll opposing direction in FIG. 5B). is placed on the opposite side.

The second position regulating portion 392 faces the inner wall 12s of the second side frame 12 in the roll opposing direction in FIG. 5B. The inner wall 12s is disposed on the opposite side of the non-reference side drive roll 4 with respect to the second position regulating portion 392 in the roll opposing direction in FIG. 5B. The second position regulating portion 392 is attached to the inner wall 12s. The second position regulating section 392 does not move.

As the piston rod 5b reciprocates within the cylinder body 5a of the reference side pressing means 5, the reference side movable frame 307 (tapered portion 307a, plate portion 307b), the first reference side bearing box 332, and the second reference side The side bearing box 342 and the reference side drive roll 3 move in the same direction as the movement of the piston rod 5b (direction perpendicular to the pass line L).
As shown in FIGS. 5A and 5B, when the reference side drive roll 3 is arranged along the pass line L, the first reference side bearing box 332 comes into contact with the first position regulating part 391, and the second reference side The bearing box 342 is in contact with the second position regulating portion 392 . Therefore, the reference side drive roll 3 does not move from the state where it is disposed along the pass line L to the outside _R2 of the pass line L.

As described above, in the second embodiment as well, similarly to the first embodiment, the reference side drive roll 3 and the anti-reference side drive roll 4 are pressed against the slab or It can be moved in the direction closer to the dummy bar. As a result, the slab or dummy bar can be held by all the drive rolls provided in the slab guiding device 1, so that the slab or dummy bar can be held sufficiently.

Further, although the pressing force of the non-reference side drive roll is greater than the pressing force of the reference side drive roll, when the reference side drive roll 3 is arranged along the pass line L, the first reference side bearing box 332 The second reference side bearing box 342 is in contact with the second position regulating part 392 as well as in contact with the position regulating part 391 . This restricts the reference side drive roll 3 from moving to the outside _R2 of the pass line L. Therefore, the reference side drive roll 3 is arranged along the pass line L.

Although the embodiments of the present invention have been described above based on the drawings, it should be understood that the specific configuration is not limited to these embodiments. The scope of the present invention is indicated by the claims rather than the above description, and includes all changes within the meaning and scope equivalent to the claims.

(Modified example of roll of slab guide device)
For example, in the above embodiment, as shown in FIGS. 1, 3B, and 4B, all the rolls provided in the slab guide device are drive rolls. However, the slab guiding device may also be a device having both drive rolls and free rolls. The free roll is a roll to which no driving force is applied, and is a roll that can rotate as the slab or dummy bar is conveyed.

For example, as shown in FIG. Reference side drive roll 4, reference side pressing means 5, anti-reference side pressing means 6, and position regulating means (not shown) ("first position regulating section 91" and "second position regulating section 92" shown in FIG. 2) It may also have. The reference side free roll 411 and the anti-reference side free roll 421 are arranged to face each other. The reference side free roll 412 and the anti-reference side free roll 422 are arranged to face each other. The reference side free roll 413 and the anti-reference side free roll 423 are arranged to face each other. The reference side free roll 414 and the anti-reference side free roll 424 are arranged to face each other.

For example, as shown in FIG. 6, reference side free rolls 411, reference side free rolls 412, reference side drive rolls 3, reference side free rolls 413, and reference side free rolls 414 are made of slabs or dummy bars. They may be arranged in order in the drawing direction. As anti-reference side rolls, an anti-reference side free roll 421, an anti-reference side free roll 422, an anti-reference side drive roll 4, an anti-reference side free roll 423, and an anti-reference side free roll 424 are arranged in the direction in which the slab or dummy bar is pulled out. They may be arranged in order.
As shown in FIG. 6, the reference side drive roll 3 is arranged between the reference side free roll 412 and the reference side free roll 413 in the direction of drawing out the slab or dummy bar. The non-reference side drive roll 4 is arranged between the anti-reference side free roll 422 and the anti-reference side free roll 423 in the direction of pulling out the slab or dummy bar.
The order in which the drive roll and the free roll are arranged in the direction of drawing out the slab or dummy bar can be changed.

Further, the number of reference side drive rolls and anti-reference side drive rolls that the slab guide device has is not limited. The number of reference side free rolls and anti-reference side free rolls that the slab guide device has is not limited.

(Modified example of connection between reference side pressing means and bearing box)
In the first embodiment, as shown in FIG. 2, one reference side pressing means (fluid cylinder) 5 is connected to the first reference side bearing box 32 and the second reference side bearing box 42. However, one reference side pressing means may be connected to the first reference side bearing box 32 and another reference side pressing means may be connected to the second reference side bearing box 42. According to this configuration, it is also possible to omit the reference side movable frame 7 (tapered portion 7a, plate portion 7b).
Similarly, in the second embodiment, one reference side pressing means may be connected to the first reference side bearing box 332, and another reference side pressing means may be connected to the second reference side bearing box 342. . According to this configuration, it is also possible to omit the reference side movable frame 307 (tapered portion 307a, plate portion 307b).

(Other modifications regarding the connection between the reference side pressing means and the bearing box)
In the first embodiment, as shown in FIG. 2, the reference side pressing means 5 is connected to the first reference side bearing box 32 and the second reference side bearing box 42 via the reference side movable frame 7. . However, the reference side pressing means may be directly connected to the first reference side bearing box 32 and the second reference side bearing box 42. In this case, a reference side pressing means for pressing the first reference side bearing box 32 and a reference side pressing means for pressing the second reference side bearing box 42 are required.

In this case, (1) as in the first embodiment, the first position regulating section is attached to the inner wall 11s of the first side frame 11, and the second position regulating section is attached to the inner side of the second side frame 12. It may be attached to the wall 12s. According to this configuration, the first reference side bearing box 32, the second reference side bearing box 42, and the reference side drive roll 3 are moved by the reference side pressing means. When the reference side drive roll 3 is arranged along the pass line L, the first reference side bearing box 32 contacts the first position regulating part, and the second reference side bearing box 42 contacts the second position regulating part. come into contact with As a result, the reference side drive roll 3 changes from the state where it is disposed along the pass line L (the state shown in FIGS. 1 and 2) to the side opposite to the non-reference side drive roll 4 (the state shown in the pass line L shown in FIG. 1). Do not move to the outside R ₂ ).
In (1) above, a case has been described in which the first position regulating section is attached to the inner wall 11s of the first side frame 11. However, the first position regulating section is attached to the inner wall 11s of the first side frame 11. It may be attached to a portion (inner bottom wall, etc.). Similarly, the second position regulating section may be attached to a portion of the second side frame 12 other than the inner wall 12s (inner bottom wall, etc.).

In addition, as another configuration, (2) the first position regulating section may be attached to the first reference side bearing box 32, and the second position regulating section may be attached to the second reference side bearing box 42. . According to this configuration, the first position regulating part, the second position regulating part, the first reference side bearing box 32, the second reference side bearing box 42, and the reference side drive roll 3 are moved by the reference side pressing means. Moving. The first position regulating portion is arranged to face the inner wall 11s of the first side frame 11 in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (roll opposing direction in FIG. 2). The second position regulating portion is arranged to face the inner wall 12s of the second side frame 12 in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (roll opposing direction in FIG. 2). When the reference side drive roll 3 is arranged along the pass line L, the first position regulating part abuts against the inner wall 11s of the opposing first side frame 11, and the second position regulating part also faces the opposing inner wall 11s. It abuts against the inner wall 12s of the second side frame 12. As a result, the reference side drive roll 3 changes from the state where it is disposed along the pass line L (the state shown in FIGS. 1 and 2) to the side opposite to the non-reference side drive roll 4 (the state shown in the pass line L shown in FIG. 1). Do not move to the outside R ₂ ).
In the case of (2) above, even if the reference side pressing means is connected to the first position regulating part and the second position regulating part instead of the first reference side bearing box 32 and the second reference side bearing box 42. good.

Further, in a configuration in which the reference side pressing means is directly connected to the first reference side bearing box 32 and the second reference side bearing box 42, the first position regulating section and the second position regulating section may not be used. Specifically, the following configuration may be used.
The first hole 11A of the first side frame 11 and the second hole 12A of the second side frame 12 are replaced with the first hole 11A and the second hole 12A of the above embodiment (the first hole 11A and the second hole 12A shown in FIGS. 1 and 2). Due to the size of the two holes 12A), the first position regulating part 91 and the second position regulating part 92 are arranged in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (the roll opposing direction shown in FIGS. 1 and 2). Reduce by the length of . As a result, when the reference side drive roll 3 is arranged along the pass line L, the first reference side bearing box 32 comes into contact with the inner wall 11s of the first side frame 11, and the second reference side bearing box 42 comes into contact with the inner wall 11s of the first side frame 11. It abuts against the inner wall 12s of the second side frame 12. With this configuration, it is possible to restrict the reference side drive roll 3 from moving to the outside _R2 of the pass line L without using the first position restriction part and the second position restriction part.
In the above case, the inner wall 11s of the first side frame 11 and the inner wall 12s of the second side frame 12 are position regulating means (position regulating section).

The second embodiment described above can also be modified in the same manner as described above.

(Modified example of connection between anti-reference side pressing means and bearing box)
In the first embodiment, as shown in FIG. 2, the anti-reference side pressing means 6 is applied to the first anti-reference side bearing box 72 and the second anti-reference side bearing box 82 via the anti-reference side movable frame 8. It is connected. However, the anti-reference side pressing means may be directly connected to the first anti-reference side bearing box 72 and the second anti-reference side bearing box 82. In this case, a non-reference side pressing means for pressing the first anti-reference side bearing box 72 and a reference side pressing means for pressing the second anti-reference side bearing box 82 are required.
The second embodiment described above can also be modified in the same manner as described above.

Further, in the first embodiment, as shown in FIG. 2, one anti-reference side pressing means (fluid cylinder) 6 is connected to the first anti-reference side bearing box 72 and the second anti-reference side bearing box 82. ing. However, one anti-reference side pressing means may be connected to the first anti-reference side bearing box 72 and another reference side pressing means may be connected to the second anti-reference side bearing box 82.
The second embodiment described above can also be modified in the same manner as described above.

(Modified example of position regulating means)
In the first and second embodiments described above, the first position regulating section 91 shown in FIGS. 1 and 2 serves as a position regulating means for regulating the movement of the reference side drive roll 3 to the outside _R2 of the pass line L. A second position regulating section 92 is adopted. However, the position regulating means for regulating the movement of the reference side drive roll 3 to the outside _R2 of the pass line L is not limited to the above configuration.
For example, in the first embodiment, the first position regulating section 91 and the second position regulating section 92 shown in FIGS. 1 and 2 may not be used. Specifically, the following configuration may be used.
The first hole 11A of the first side frame 11 and the second hole 12A of the second side frame 12 are replaced with the first hole 11A and the second hole 12A of the above embodiment (the first hole 11A and the second hole 12A shown in FIGS. 1 and 2). Due to the size of the two holes 12A), the first position regulating part 91 and the second position regulating part 92 are arranged in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (the roll opposing direction shown in FIGS. 1 and 2). Reduce by the length of . Thereby, when the reference side drive roll 3 is arranged along the pass line L, the plate portion 7b comes into contact with the inner wall 11s and the inner wall 12s. In this case, in order to prevent the bolt head from interfering with the inner wall 11s, a countersunk hole for accommodating the bolt head may be provided in the plate portion 7b. With this configuration, it is possible to restrict the reference side drive roll ₃ from moving to the outside R2 of the pass line L without using the first position restriction part 91 and the second position restriction part 92.
In the above case, the inner wall 11s of the first side frame 11 and the inner wall 12s of the second side frame 12 are position regulating means (position regulating section).

Furthermore, in the second embodiment, the first position regulating section 391 and the second position regulating section 392 shown in FIGS. 5A and 5B may not be used. Specifically, the following configuration may be used.
The first hole 11A of the first side frame 11 and the second hole 12A of the second side frame 12 are replaced with the first hole 11A and the second hole 12A of the above embodiment (the first hole 11A and the second hole 12A shown in FIG. 5B). ) is smaller by the length of the first position regulating part 391 and the second position regulating part 392 in the opposing direction of the reference side drive roll 3 and the anti-reference side drive roll 4 (roll opposing direction shown in FIG. 5B). do. As a result, when the reference side drive roll 3 is arranged along the pass line L, the first reference side bearing box 332 comes into contact with the inner wall of the first side frame, and the second reference side bearing box 342 contacts the inner wall of the first side frame. It touches the inside wall of the side frame. With this configuration, it is possible to restrict the reference side drive roll 3 from moving to the outside _R2 of the pass line L without using the first position restriction part and the second position restriction part.

(Modified example of position regulating means)
In the first embodiment described above, as shown in FIG. 2, the first position regulating portion 91 is attached to the inner wall 11s of the first side frame 11. However, the first position regulating portion 91 may be attached to other parts of the first side frame 11. For example, the first position regulating portion 91 may be attached to the bottom of the inner wall of the first side frame 11 (the wall that defines the first hole 11A), or the like.
Further, the first position regulating portion 91 may be attached to a member other than the first side frame 11. For example, the first position regulating section 91 may be attached to the reference side movable frame 7. For example, the first position regulating portion 91 may be attached to the plate portion 7b of the reference side movable frame 7. Further, the first position regulating portion 91 may be attached to the tapered portion 7a of the reference side movable frame 7.
The same applies to the second position regulating section 92. The second position regulating portion 92 may be attached to a portion of the second side frame 12 other than the inner wall 12s. The second position regulating portion 92 may be attached to a member other than the second side frame 12 (for example, the reference side movable frame 7).
When the first position regulating section 91 and the second position regulating section 92 are attached to the reference side movable frame 7, the reference side pressing means 5 moves the reference side movable frame 7, the first position regulating section, and the second position. The regulating portion, the first reference side bearing box 32, the second reference side bearing box 42, and the reference side drive roll 3 move. When the reference side drive roll 3 is arranged along the pass line L, the first position regulating part abuts against the inner wall 11s of the opposing first side frame 11, and the second position regulating part also faces the opposing inner wall 11s. It abuts against the inner wall 12s of the second side frame 12. Thereby, the reference side drive roll 3 does not move from the state disposed along the pass line L to the side opposite to the anti-reference side drive roll 4 (outside R ₂ of the pass line L shown in FIG. 1).

The second embodiment described above can also be modified in the same manner as above. Although the first position regulating portion 391 shown in FIGS. 5A and 5B is attached to the inner wall 11s of the first side frame 11, it may be attached to other parts of the first side frame 11. Although the second position regulating portion 392 is attached to the inner wall 12s of the second side frame 12, it may be attached to other parts of the second side frame 12.
The same applies to the second position regulating section 392. The second position regulating portion 392 may be attached to a portion of the second side frame 12 other than the inner wall 12s.

Furthermore, in the second embodiment described above, the first position regulating portion 391 may be attached to a member other than the first side frame 11. For example, the first position regulating section 391 may be attached to the reference side movable frame 307. Similarly, the second position regulating section 392 may be attached to a member other than the second side frame 12 (for example, the reference side movable frame 307).
When the first position regulating part 391 is attached to the first reference side bearing box 332 and the second position regulating part 392 is attached to the second reference side bearing box 342, the reference side pressing means 5 The position regulating section 391, the second position regulating section 392, the first reference side bearing box 332, the second reference side bearing box 342, and the reference side drive roll 3 move. When the reference side drive roll 3 is arranged along the pass line L, the first position regulating part 391 contacts the inner wall 11s of the first side frame 11, and the second position regulating part 392 contacts the inner wall 11s of the first side frame 11. 12 inner wall 12s. Thereby, it is possible to restrict the reference side drive roll 3 from moving to the outside _R2 of the pass line L from the state where it is disposed along the pass line L.
In the above case, the movable frame 307 may be connected to the first reference side bearing box 332 and the second reference side bearing box 342, and may be connected to the first position regulating section 391 and the second position regulating section 392. Good too.

(Other variations of position regulating means)
In the above-described first embodiment, second embodiment, modification example, etc., the first position regulating part (91, 391) and the member to which the first position regulating part (91, 391) is attached may be separate members. , may have an integral structure. For example, when the first position regulating part (91, 391) is attached to the first side frame 11, the first position regulating part (91, 391) and the first side frame 11 may be separate members, or may have an integral structure. It may be . When the first position regulating part (91, 391) is attached to the reference side movable frame (7, 307), the first position regulating part (91, 391) and the reference side movable frame (7, 307) are separate. It may be a member or may have an integral structure. When the first position regulating part (91, 391) is attached to the first reference side bearing box (32, 332), the first position regulating part (91, 391) and the reference side movable frame (7, 307) , may be separate members or may have an integral structure.
The same applies to the second position regulating section (92, 392).

Further, the shapes of the first position regulating part (91, 391) and the second position regulating part (92, 392) are not limited to the shapes shown in FIGS. 1, 2, 5A, and 5B. The first position regulating section 91 and the second position regulating section 92 may be, for example, plate-shaped, rod-shaped, or block-shaped.

(Other variations)
Further, in the first embodiment, as shown in FIG. 2, the reference side movable frame (connection member) 7 has a tapered portion 7a and a plate portion 7b. In the second embodiment, as shown in FIG. 5B, the reference side movable frame (connection member) 307 has a tapered portion 307a and a plate portion 307b. However, the configuration of the reference side movable frame can be changed. For example, the width of the reference side tapered portion may be constant. The configuration of the movable frame on the anti-reference side can also be changed.

(Modified examples of reference side pressing means and anti-reference side pressing means)
Furthermore, in the first and second embodiments described above, fluid cylinders are employed as the reference side pressing means 5 and the anti-reference side pressing means 6, as shown in FIGS. 1, 2, 5A, and 5B. However, the reference side pressing means 5 and the anti-reference side pressing means 6 do not need to be fluid cylinders.

Further, the slab guide device of the present invention can be used in a position where slabs or dummy bars are pulled out in the vertical direction, as shown in FIGS. 1, 2, 3B, 4B, 5A, 5B, and 6. It may also be used in a position where the slab or dummy bar is pulled out in a direction other than the vertical direction.

1 Slab guide device 2 Housing 3, 101, 102, 103, 201, 202, 203 Reference side drive roll 4, 111, 112, 113, 211, 212, 213 Anti-reference side drive roll 5, 231, 232, 233 Reference Side pressing means 5a, 6a Cylinder body 5b, 6b Piston rod 6, 221, 222, 223 Opposite reference side pressing means 7, 307 Reference side movable frame (connection member)
7a, 8a, 307a Tapered part 7b, 8b, 307b Plate part 11 First side frame 11A First hole 11s Inner wall 12 Second side frame 12A Second hole 12s Inner wall 13 First connecting plate 14 Second connecting plate 21 Standard Roll body part 22 First reference side shaft part 23 Second reference side shaft part 31 First reference side bearing 32, 332 First reference side bearing box 41 Second reference side bearing 42, 342 Second reference side bearing box 51 Reference side Input shaft portion 52 Anti-reference side input shaft portion 61 Anti-reference roll main body portion 62 First anti-reference side shaft portion 63 Second anti-reference side shaft portion 71 First anti-reference side bearing 72 First anti-reference side bearing box 81 Second Anti-reference side bearing 82 Second anti-reference side bearing box 91, 391 First position regulation part 92, 392 Second position regulation part L Pass line S Slab

Claims (8)

a reference side drive roll and a non-reference side drive roll arranged opposite to each other;
Reference side pressing means for pressing the reference side drive roll toward the anti-reference side drive roll;
An anti-reference side pressing means for pressing the anti-reference side drive roll toward the reference side drive roll, wherein the force with which the anti-reference side drive roll presses the slab or the dummy bar is increased by the anti-reference side pressing means. an anti-reference side pressing means set to be larger than the force with which the reference side drive roll presses the slab or the dummy bar by the reference side pressing means ;
Position regulating means for restricting the reference side drive roll from moving to the opposite side of the non-reference side drive roll with respect to the pass line of the slab or dummy bar.
A slab guide device for continuous casting equipment, characterized by: The slab guide device according to claim 1, wherein the slab guide device guides the slab or a dummy bar in a vertically downward direction. a housing in which the reference side drive roll and the anti-reference side drive roll are housed;
a bearing box rotatably supporting the reference side drive roll;
The bearing box is disposed in a hole formed in the housing and is connected to the reference side pressing means,
The position regulating means has a position regulating part disposed on the opposite side of the non-reference side drive roll with respect to the bearing box with respect to the opposing direction of the reference side drive roll and the anti-reference side drive roll,
The position regulating portion restricts the bearing box from moving toward the side opposite to the non-reference side drive roll in the opposing direction of the reference side drive roll and the anti-reference side drive roll, so that the reference side drive roll 3. The slab guiding device according to claim 1 , wherein movement of the slab is restricted. The position regulating portion is disposed in the hole and attached to the housing,
The slab guiding device according to claim 3 , wherein the bearing box is in contact with the position regulating portion when the reference side drive roll is arranged along the pass line. The position regulating portion is disposed in the hole, is attached to the bearing box, and faces an inner wall of the housing in a direction in which the reference side drive roll and the anti-reference side drive roll face each other,
4. The slab guiding device according to claim 3 , wherein when the reference side drive roll is arranged along the pass line, the position regulating part is in contact with an inner wall of the opposing housing. The slab guiding device according to claim 4 or 5 , further comprising a connecting member that connects the bearing box and the reference side pressing means. comprising a connecting member connecting the bearing box and the reference side pressing means,
at least a portion of the connecting member is disposed in the hole;
The position regulating part is disposed in the hole and attached to the housing,
In the hole, at least a portion of the connecting member is disposed between the bearing box and the position regulating portion,
According to claim 3 , when the reference side drive roll is arranged along the pass line, at least a part of the connecting member arranged in the hole is in contact with the position regulating part. slab guiding device. comprising a connecting member connecting the bearing box and the reference side pressing means,
at least a portion of the connecting member is disposed in the hole;
The position regulating portion is disposed in the hole and faces an inner wall of the housing in a direction in which the reference side drive roll and the anti-reference side drive roll face each other,
In the hole, at least a portion of the connecting member is disposed between the bearing box and the position regulating portion,
the connecting member and the position regulating section are connected,
4. The slab guiding device according to claim 3 , wherein when the reference side drive roll is arranged along the pass line, the position regulating part is in contact with an inner wall of the opposing housing.