SU443707A1 - Mill for rolling one-sided periodic profiles - Google Patents

Description

one

The invention relates to the processing of metals by pressure and can be carried out when rolling longitudinal periodic profiles with a one-sided period.

Mills are known for rolling one-sided periodic profiles containing one calibrated and at least two smooth rolls of different diameters, a screw pressure device, inlet and outlet fittings.

To keep the gauge constant and exclude advance when rolling, the smooth rolls are located at an acute angle composed by planes passing through their longitudinal axes and the axis of the calibrated roll, and are rigidly connected to each other by a common pressure device whose screw axis is aligned with the bisector of this angle .

The drawing shows the proposed camp.

The calibrated roller 1 and two smooth rollers 2 and 3 are arranged in such a way that they form a caliber with a constant height (i.e. the gap between the rollers 1 and 2 is equal to the gap between the rollers 1 and 3). The workpiece 4 is set by input wiring 5 between the calibrated squeeze roller 1 and the smooth squeeze roller 2, which tells it to complete the required crimping. The total required crimping of the strip in rollers 1 and 2 is set by adjusting roller 2 using a common screw for rollers 2 and 3 of a pressure screw device b, having a common pressure B1U1T 7 with nut 8, with the axis of the screw turning the angle between the axial planes of the rollers in half. When adjusting the rolls due to the same joint movement of the smooth rolls 2 and 3 in the direction of the axis of the common pressure screw, the height of the gauge remains constant (i.e., the gap between the rolls 1 and 2 remains equal to the gap

between rolls 1 and 3).

So, when installing any given reduction in rollers 1 and 2, the constancy of the height of the caliber formed by rollers 1, 2 and 3 is automatically preserved. Roll diameter 2 dl

In order to secure the billet with the billet 4 of the calibrated roll 1, for example, the diameter of the roll 1 may be greater. The billet 4 that has received the full required reduction shackles the calibrated roll 1 by moving it

jointly and at the same speed and pressing a smooth roller 3 against it. The smooth roller 3 together with the calibrated roller 1 form, as it were, an inhibitory part of the deformation zone in the bevel. SchA brake

a part of the deformation zone eliminates the possibility of advancing the advancement of the workpiece area in rolls 1 and 2. In addition, the smooth roll 3 together with the calibrated roller 1 form a two-roll deformation zone with

kinematic parameters D / 1 0, and therefore 5 0 0 (D / g - the amount of compression,

Son is the relative difference between the longitudinal velocities of the metal and the roll in the cross section of the exit of the strip from the deformation zone). The removal of the finished strip is carried out through an output cable 9 outside the zone of the deformation zone in the conditions of rolling with a naked 1M smooth pressure roll 3 and a calibrated roll 1 without a crimper and without advance.

And redemt and z obrete and and

Flocks for rolling one-sided periodic profiles, one calibrated one and at least two smooth rolls of different diameters, a screw pressure device, lead-in and outlet fittings, o t and h and 1d and with the fact that

the constancy of the gauge and the exclusion of advance in rolling, the smooth sticks are located at an acute angle composed by planes passing through their longitudinal axes and the axis of the calibrated roll, and firmly pressed against each other, the axis of the screw is aligned with the bisector of this angle.