SU850236A1 - Rolling mill - Google Patents

Description

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The invention relates to ferrous and nonferrous metallurgy, more specifically to rolling mills that deform thin sheets.

A rolling mill is known, including a working stand with a roller, a drive, pressing devices and a winder installed with the possibility of reciprocating movement along the roll to the roll and flj pressed to it

However, when there is one winder, the mill capacity is insufficient.

 invention - an increase in the productivity of the mill.

The goal is achieved by the fact that the known rolling flocks, including a working stand with a roll, a drive, and a clamping device and a rolling stock installed with the possibility of reciprocating movement relative to the roll and pressed against it, are provided with additional windingsKaim; common traverse connected to the pressure device.

The drawing shows a diagram of the mill with two winders.

The device consists of a work roll 1 (a stand and a drive are not shown, two winders 2 and 3 mounted on a common yoke 4 connected to a pressure hydrocylide 5, two winders 6 and 7 located outside the stand.

The device works as follows.

The cut-off strips 8 and 9 are respectively placed on the winders 2 and 3, which are pressed onto the shaft I, which is driven into rotation, by rolling the strips 8 and 9. The processed strips are wound, on the winders 6 and 7, also driven .

The number of winders pressed to the roll may be more than two. At the same time, in the stand it is possible to reattach not four foci of deformation, but four, to carry

etc. When the coilers 2 and 3 are located on the common cross bar 4, mounted on the hydraulic cylinder 5, the cylinder hydraulic force is F 2R 611 (90-5: 2RCO5 t where R is the force between roller 1 and coilers 2 and 3. If the angle is c6 120, then F 2SO5.5Р ;

P - P - J

R

i2С056О °

An angle cL of 120 is optimal. In fact, the values are limited by the strength of the mill parts. A small force of the hydraulic cylinder 5 can create a very large force between the roller and the winders.

The proposed rolling mill makes it possible to combine a stand with winders into one complex, to create a multi-focal system of plastic deformation zones, in which the t 1 t h depends only on the ratio of the speeds of the roll and the winders and does not depend on the elastic deformation

cages, thickness variations and temperature fluctuations.

Claims (1)

Invention Formula A rolling mill including a working stand with a roller, a drive, pressure devices and a winder installed with the possibility of reciprocating movement with respect to the roll and being able to press it, characterized in that it is equipped with additional winders in order to increase productivity winders are installed in pairs on a common traverse connected to the pressure device. Sources of information taken into account in the examination . Patent of Great Britain No. 1329293, cl. In 3 M, 1970. / / at