SU1204279A1 - Working stand of rolling mill - Google Patents

Description

234The invention can be used in the factories of ferrous and non-ferrous metallurgy in the production of tapes and strips.

 the invention is the expansion of technological capabilities by ensuring the use of a fixed-roll rolling process in existing strip mill designs, as well as an increase in the quality of the strip.

On. FIG. 1 shows a diagram of a roller assembly with a housing; in fig. Section A-A in FIG. one; in fig. section bb in fig. 2; in fig. Section B-B in FIG. 2

The working stand of the rolling mill (Fig. 1) contains two working rolls 1-. The lower work roll is made driven, and the top one is in contact with two intermediate rolls 2, which rest on the back roll 3. In the plane of the axes of the intermediate rolls 2, a housing 4 is installed, which on both sides has rectangular grooves (Fig. 4), in which the shanks are located between the rollers 2. The latter are fixed in the housing 4 with the aid of the strip 5.

A plate 6 is installed between the housing 4 and each intermediate roller 2. In the plane of the axes of the intermediate rollers 2 in the housing 4, screws 7 are evenly distributed along the length of the roll barrel and abutting the flexible plate 6.

Working stand works as follows.

From the uncoiler (not shown) between the work rolls 1, a strip 8 is passed, the front end of which is fixed on a coiler (not shown). The required pressure is established at the deformation zone and nat -

strip ends, and the strip 8 starts rolling in a rolling-drawing process with one fixed work roll to the required thickness,

The adjustment of the roll profile when using screws 7 is carried out before the strip starts rolling.

Instead of screws 7 it is possible to install in the case 4 hydraulic cylinders, in this

In this case, it is possible to adjust the profile during the rolling process.

The proposed working stand can be used in various structures of rolling mills with individual and group roll drives, as well as, for example, in quarto cells. For this, quarto stands are made with a somewhat large upper course.

support roll.

By ensuring this condition, it is possible to remove the upper work roll and install the housing 4 with intermediate rollers 2 and a fixed work roll 1 and of small diameter.

The use of a working stand allows to improve the quality of rolled tapes and strips, to ensure high surface quality.

For example, the longitudinal thickness of the ribbons can be reduced by 1.5-2.0 times as compared with the overall rolling process without the use of any additional systems of automatic rolling.

band adjustment.

1204279 B - B

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Claims (2)

1. WORK CELL OF THE ROLLING MILL, including a stationary work roll in contact with two intermediate rolls resting on a support roll, additional supports of the intermediate rolls located in the plane of the axes of these rolls and fixed by the ends in the housing, characterized in that, in order to expand technological capabilities by ensuring the use of the rolling process with a fixed roll in existing designs of strip mills, the casing is made in the form of a rectangular frame mounted in the plane of the axes of intermediate rolls and covering the intermediate rolls in contact with the body along the entire length of its barrel. 2. Crate pop. 1, characterized in that in order _to improve the quality of the strip by adjusting the profile of the work rolls between the housing and each intermediate roll, a flexible plate is installed that can be moved horizontally with screws installed in the housing along the length of the intermediate barrels rolls in the plane of their axes.