Novel twenty-roller cold-rolling mill

Abstract

The invention relates to a novel twenty-roller cold-rolling mill which comprises an upper roller box and a lower roller box, wherein the upper roller box and the lower roller box are internally and symmetrically provided with two groups of roller systems and are both arranged in a frame-type stand, the lower roller box is arranged on a base of the stand, a jacking hydraulic cylinder used for jacking the lower roller box is arranged on the base of the stand, the upper roller box is arranged on the upper ends of supporting guide columns arranged on four corners of the upper end of the lower roller box, and the upper end of the upper roller box is pressed on the bottom surface of an upper rolling line regulating device arranged at the upper end of the stand. The roller boxes in the novel twenty-roller cold-rolling mill can vertically move to precisely complete the rolling of sheets, and can freely move out from the stand, and when rollers are changed or the roller boxes are maintained, a new roller box can directly slide into the stand without influencing a production schedule; and two sets of convexity regulating devices are arranged on the stand, the novel twenty-roller cold-rolling mill has high regulating precision, and is very convenient for disassembly and assembly and use.

Description

technical field [0001] The invention belongs to the field of cold rolling equipment, in particular to a novel twenty-high cold rolling mill. Background technique [0002] The cold rolling mill is an important sheet metal processing equipment. The common one is the Sendewei four-column 20-high cold rolling mill. Its structure is: including the upper frame, the lower frame, and the front of the upper frame and the lower frame. The revolving door and the rear fixed wall are respectively installed at the rear and the rear, and four vertical long guide columns are respectively installed at the four corners of the upper end surface of the lower frame. A hydraulic cylinder is respectively installed at the ends of the four long guide columns at the upper end of the upper frame, and the hydraulic cylinder is used to drive the movement of the upper frame and adjust the roll gap and rolling force. [0003] Two groups of roller systems are symmetrically installed in the roller system h...

AI Technical Summary

Problems solved by technology

[0004] The following problems exist in the twenty-high cold rolling mill with the above structure: 1. The upper frame vertically slides and fits on the four long guide columns, and the overall structure is similar to the open frame structure, with low rigidity

2. The four hydraulic cylinders on the upper frame drive the upper frame to move, but the precision of the cooperative work is required to be high, otherwise the upper frame will not be able to move in a balanced manner and the anti-interference ability will be poor

3. The crown adjustment device is installed on the upper frame, which makes the structure of the upper frame too complicated, and once the frame is deformed, the crown adjustment device cannot find the relative benchmark, and the accuracy of the adjustment of the roll system cannot be guaranteed

4. The crown adjustment device only has one set of upper symmetry, and the adjustment method is not flexible

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