SU373039A1 - METHOD OF CONTINUOUS ROLLING - Google Patents

Description

Methods are known for continuous rolling of a billet in drive horizontal conic rolls with parallel ones in the plane of metal output from the rolls forming, with alternate crimping of the workpiece in mutually perpendicular directions. The sophisticated method requires twisting the workpiece between the cages.

To avoid tilting of the billet, it is proposed to roll in rollers with a fragile tilt of 45 ° forming a roller to the axis.

FIG. ) shows the layout of the continuous mill for carrying out the described method of continuous rolling; on (gg. 2 - the arrangement of the rolls of two consecutive stands of a continuous line; in Fig. 3 - the structural design of the rolling.

The working stands J-6 (their number may be different) are driven by engines 7 through gearboxes 8. Flying scissors 9 are installed behind the / -6 stands, which cut the workpieces into lengths. Packing of the axle takes place on the roller table with skew-mounted rollers 10. Through the roller table // blanks are fed to cold plates 12. Each stand (in this way: measure) contains but two rolls, for example 13 and 14, - the second last cell 5 and 15 16 is the shaft of the last stand 6, from which the workpiece 17 is coming out. The under-bearing supports of the 18 are located in the cushions 19 and 20. The position of the pillows is adjusted with the screws 21.

. the conical surfaces of the rolls with a tilt angle of 45 ° forming a roller to the axis. If in stand 5, rolls 13 and 14 press it in one direction, then to stand 6, rolls 15 and 16 compress it in another direction. In the center

friction force blanks on both roll surfaces are balanced; on both sides of the center on one surface, the roll lags behind the strip 17, and on the other it is ahead of it, while the total strength of the training and their support is less,

than with conventional rolling, which reduces rolling effort. In addition to these calibers, the usual calibers can be placed on the rolls: rhombic, round, slider, and others, which creates greater flexibility when working the mill. Thus, in FIG. Figure 3 shows that, on rollers 15 and 16, in addition to the caliber with conical surfaces, there is also an ordinary bar, an egg caliber. In the implementation of the described method mozhio relatively

just change the rolling pattern; to do this, it is sufficient to reload the rolls, changing the direction of the taper. You can arrange them so that two cages will deform the ingot in one direction, a third in

friend, then fourth, nth again in first