JPS6096314A - Rolling roll thrust direction adjustment device - Google Patents

Abstract

PURPOSE:To obtain a product excellent in dimensional accuracy by adjusting the movement of a rolling roll in the thrust direction by moving a taper body provided to the side of a rolling mill. CONSTITUTION:A thrust retaining device 10 is made horizontally rotatable with respect to a housing 1 by a pin 100, and its one end 10a is in contact with the projection 40 of a chock yoke 4. A taper body 11 is positioned to sandwich the projection 40 between it and the end 10a, and a taper body 12 is in contact with the end 10b. The taper bodies 11 at the left and right sides of yoke 4 are lifted by the quantity required in accordance with the moving quantity of a roll A with the aids of driving devices 13. When the taper body 12 is pushed downward by the device 14 because of a gap produced between the projection 40 and the body 11, the device 10 is turned to press the projection 40 to the side of body 11 in order to move the yoke 4. In this way, the movement of roll A in the thrust direction is adjusted rapidly and precisely to improve the dimensional accuracy of a product.

Description

[Detailed description of the invention] The present invention relates to a rolling roll thrust direction adjusting device.

H-section steel is generally formed using a rough rolling mill and is made up of upper and lower horizontal rolls (A) (A) and left and right vertical rolls (B) (B) as shown in Figure 1. Manufactured by rolling with a universal mill.

If a deviation (α) as shown in Fig. 2 occurs in the center line of the upper and lower horizontal rolls (A) (A), the H-beam (X) after rolling will be dislocated at each flange as shown in Fig. 3. Thickness (t
If there is a deviation between

The causes of misalignment include errors during roll assembly and misalignment in the roll thrust direction during rolling, but conventionally, this misalignment has been resolved by manually moving the rolls in the thrust direction. However, manual methods require time for adjustment and have poor adjustment accuracy, making it impossible to perform prompt and accurate adjustment after a deviation in the flange thickness of a product is discovered.

The present invention has been made in order to improve the above-mentioned conventional drawbacks, and it is an object of the present invention to provide a device that can quickly and accurately adjust the thrust direction position of a mill roll.

An embodiment of the present invention will be described below based on the drawings.

FIG. 4 is a side view showing an embodiment in which the rolling roll thrust direction adjusting device according to the present invention is applied to a universal mill, and FIG. 5 is a sectional view taken along the line V-V in FIG. 4.

In the figure, (1) is the housing, (2) is the upper chock, (3)
is the lower chock, (4) is the upper chock yoke, and (5) is the lower chock yoke.

The adjustment device of the present invention is a rotary thrust holding device (10α0
, Tapered body (11) α■, α Tatsu and nuclear tapered body 0η
It is composed of the driving device 030→ and Q41 (141) in (a), and these are provided symmetrically on the left and right sides of the upper chock yoke (4).

As shown in FIG. 5, the thrust holding device (11) is horizontally rotatably attached to the housing (1) with a pin (100), and one end (1ea) of the thrust holding device (11) is connected to the chock yoke (4).
It comes into contact with the protrusion (40) of.

The tapered body Q has a tapered shape that is wide at the upper side and becomes narrower toward the lower side. Tapered body 01 is housing (1)
The protrusion (40) is inserted between the chock yoke (4) and the chock yoke (4).
The protrusion (40) is sandwiched between the protrusion (40) and one end (ioa) of the thrust holding device QQ. The other tapered body θ2 is connected to the thrust holding device αO and the housing (1
), and the other end (10b) of the holding device 00
It looks like it's touching. Each tapered body 0υ0 is provided with a drive device α3Q41), which moves the tapered body α3Oa up and down, that is, raises and lowers it. This drive device 0
Although a motor or the like can be used as the 7JCIΦ, a hydraulic cylinder is used in this embodiment.

Next, how to use it will be explained.

The case where the rolling rolls are moved in the direction of the arrow in FIG. 5 will now be explained. First, the left and right tapered bodies αηα9 of the chock yoke (4) are pulled upward by the drive device 01 (toward).

The amount of pulling up is determined depending on the required amount of movement of the rolling rolls. When the taber α4α is pulled up, a gap will be created between the protrusion (4), so if the taper α4α is then pushed down by the drive device C141α◆, the thrust holding device (to) will rotate. The chock yoke (4) is moved by pressing the protrusion (40) toward the tapered body H. This movement of the chock yoke causes the rolling roll to move in the direction of the arrow.

To move in the opposite direction, taper body CL1 (a)
All you have to do is pull up the tapered body (11) and press down the tapered body (11) 01. Furthermore, the amount of movement of the rolling roll can be controlled by detecting the displacement of the tapered body using a suitable sensor such as Magnescale and controlling the drive device as feedback. It may be possible to adjust with high precision. It is also possible to predict the amount of axial displacement of the rolling rolls from data of previous passes, etc., and to adjust the rolling roll positions in advance through computer control.

Furthermore, although the above description has been made using H-beam steel as an example, the thermal theory is also effective for reducing accuracy due to misalignment in the roll thrust direction of other types of steel, and can be applied to any other rolling mill.

As explained above, according to the mill roll thrust direction adjusting device of the present invention, the movement of the mill roll in the thrust direction can be adjusted quickly and accurately, so that a product with high dimensional accuracy can be obtained.

[Brief explanation of drawings]

1 to 3 are explanatory diagrams of the occurrence of variations in flange thickness, and FIG. 4 is a side view showing an embodiment of the device according to the present invention.
FIG. 5 is a sectional view taken along the line ■--■ in FIG. 4. (1)...Housing, (2)...Upper chock, (
3)...lower chock, (4)...upper chock yoke, (5)...lower chock yoke, Q(#...rotary thrust holding device, al) and 04...tapered body, α1
and 04... drive device. Percentage Applicant: Nippon Kokan Co., Ltd. Inventor 1) Yoshiyuki Takabe, Kiyoshi Morioka, Nobuyuki Wakimoto

Claims (1)

[Claims] A rolling roll characterized by having a tapered body disposed on the side of a rolling mill and adjusting the rolling roll in the thrust direction via a chock or a chock yoke as the tapered body moves, and a drive device that moves the tapered body. Thrust direction adjustment device.