JPS5961510A - rolling equipment - Google Patents

Abstract

PURPOSE:To roll always a steel sheet at the central position of a work roll in rolling the steel sheet by detecting the positions of both width-ends of the steel sheet at the inlet of a rolling mill, and simultaneously detecting the shifted extent of the work roll to actuate a guiding device basing on the detected values. CONSTITUTION:In rolling a rolling material 2 such as a steel sheet by a work roll 1, the work roll 1 is roll-shifted by a roll shifting device 4 in conformity with the sheet width of the material 2. The shifted extent of the material 2 is detected by a shift extent detector incorporated in the device 4 to input its result to a computing element 9, and the position of the width-end of material 2 to be expected to the work roll 1 is calculated. On the other hand, the actual width-end position of material 2 is detected by a sheet width-end position detector 5 to input its result to the computing element 9, and the actual position is compared with the expected width-end position of material 2 obtained from said shifted extent to obtain the positional difference. The material 2 is rolled by correcting its position to the central position of the roll 1 basing on the positional difference by driving a driving device 8 for moving guide rolls.

Description

DETAILED DESCRIPTION OF THE INVENTION The rolling angle Δ for the beam of the present invention is always optimized K.
This invention relates to a rolling device capable of holding the stomach.

When rolling is performed by pressing a work roll against a rolled material, a portion of the work roll that is in contact with the width end of the rolled material is elastically deformed. For this reason, end elongation occurs in the rolled material, causing shape defects. In order to correct this shape defect caused by partial elastic deformation of the work roll, in recent rolling mills, the opposite ends of the upper and lower work rolls are made into a tapered shape, and the work roll is adjusted to match the width of the rolled material. There is one in which the width end portion of the rolled material and the tapered portion of the work roll are A-paralleled so that partial elastic deformation of the work roll is relieved by 1q due to the tapered shape. In such a rolling mill, it is necessary to roll the rolled material into a large plate with pressure at the rolling center of the upper and lower work rolls, and the distance between the rolling center of the upper and lower work rolls 1, 1' and the center of the rolled material 2 is shown in Figure 1. If the left end of the rolled material 2 is misaligned, the left end of the rolled material 2 will elongate as viewed in the figure, resulting in a defective shape, and the rolling blades will become unbalanced on the left and right sides of the rolled material, causing meandering. Therefore, as shown in FIG. 2, the rolled material 2 must be positioned centrally relative to the upper and lower workpieces.

The present invention is l! In view of the actual situation, it is difficult to use rolled material. I' to the workpiece L'' - on the entry side of the rolling 1 shaku so that it can be rolled at the rolling center of the wheel! 13 (Rolling) Detects both widths of 4, and also detects the shift of the tool 91) and displays the rain detection result. 1 nok 1
- Rolling so that it is centered at the rolling center of the roll) - Raise the neck 1j.

M) An embodiment of the present invention will be explained with reference to FIG. 33 below.

In Fig. 3, 11.1 soak 11-le 3 indicates the shaft 1'1j, and ``nok IJ-le 1'' indicates the required roll shift l-device 4.
J, <' ihl 1.1-lucif 1 ~ child (J2t Lnte J3, the roll shift l-device 4
has a built-in jitter amount detector (not shown) for detecting 1-no-crawl 1-piece. A plate width edge position detector 5 for detecting the positions of both width ends of the rolled material 2 is installed on the entry side of the rolling mill.
Set up the guide device 6.

The rolling grinder r1~device 6 includes a rotatable guy 1~roll 7.
7 is brought into contact with both width ends of the rolling +A2.The configuration is such that the guy 1 roll 7.7 can be moved in the strip width direction by a driving device 8, 8 such as a tightening cylinder, and the driving device 8, 8 is provided with a guide. A position detector for the roll 7.7 is provided.

The shift amount detector and the sheet width end position detector 5 are respectively connected to the computing unit 9, and the shift amount detector 5 of the work roll 1 is connected to the calculation unit 9.
The amount and the position of both width ends of the rolling '4A2 can be inputted to a computing device 9, and the drive device 8 can be driven to a certain degree by a signal from the computing device 9.

Next, a detailed explanation of the present invention will be given.

First, roll the work roll 1 according to the width of the rolled material 2 to be rolled.
The roll shift device 1 to the device 4 reroll the data to the roll shift device 71.

This shift distance is detected by the shift amount detector and inputted to the projectile device 9, and the width end position of the rolled material 2 that should be with respect to the work roll 2 is calculated. On the other hand, rolling +12
The actual width end position of the shifter 1 is detected by the board width end position detector 5, and the detection result is input to the calculator 9 to calculate the actual width end position of the shifter 1.
- It is compared with the width end position of the rolled material 2 that should be determined based on the amount, and the position difference is determined. If there is a positional difference, the calculator 9 drives the kite D-lure driving device 8 to reduce the positional difference by 1.

Therefore, the rolled material 2 is always rolled in a good condition as shown in FIG. 2, and shape defects and meandering due to end elongation are prevented.

In addition, the guide 'J device shown in the above practical/a example can also be attached to other guide devices, and as shown in Figs. 4 and 5, the guide 'J device shown in Figs. Yes, the one shown in Figure 4 has a guide block 10. H) The one shown in Fig. 5 is the one in which the sill 11 is tilted and is perpendicular to the downward running direction of the rolled material 2. .

As stated above, the present defense is based on the fact that the position of the rolled material in the rolling mill, in which the end of one nok is tapered, is properly adjusted. You can make the most of these six benefits.

[Brief explanation of drawings]

Figures 1 and 2 are explanatory views showing the relationship between rolled materials such as work rolls with tapered ends, Figure 3 is a detailed explanatory view of the present invention, and Figures 4 and 5 are views of the present invention. It is an explanatory view showing other examples of a guide device used for. 1.1' is a work roll, 2 is a rolled material, 4 is a roll shift 1-device, 5 is a plate width edge position detector, 6 is a blade inserter, 9
indicates a computing unit. Patent application: Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant 6 representatives

Claims (1)

[Claims] 1) Work [] - Make the left end of the roll into a 7-pa shape and adjust the roll to match the width of the rolled material.
In a rolling mill that performs rolling by varying the width end of the material and the taper-shaped portion of the work 1 by Δ-, the width end position of the rolled material is detected on the entry side of the rolling IQ. Set up a container.
A guide device is installed on the upstream side of the rolling mill to move the rolling machine in the width direction, and the plate width end position detector and shift detectors 1 to ω are installed in the rolling mill. The guide device is driven by the output of the calculator so that the position difference between the rolling center of the rolling plate and the end of the rolling plate can be determined by the calculating unit. A rolling mill characterized by being configured to