Hydraulic shear pressing device of aluminium sheet strip rolling mill

Abstract

The invention belongs to the technical field of metallurgical industry equipment, and discloses a hydraulic shear pressing device of an aluminium sheet strip rolling mill, which is provided with an upper knife rest body provided with a heavy hydraulic shear; a pressing device is installed on the upper knife rest body; the pressing device consists of a hydraulic cylinder, guide posts and a press plate, wherein the press plate has a through long structure, the hydraulic cylinder is arranged on the hydraulic cylinder, the two guide posts are respectively positioned at the left and the right sides of the hydraulic cylinder, each guide post passes through a guide post hole arranged on the upper knife rest body, and the lower ends of the guide posts are connected with the press plate by flanges; a piston rod of the hydraulic cylinder is connected with the press plate by a ball head and a buffer device; and the press plate is driven to move downwards by the hydraulic cylinder and is contacted with the material so as to firmly press and fix the material. As the hydraulic cylinder is adopted to drive the press plate to press the material, little impression is generated on strip material, the heavy hydraulic shear can be ensured to work normally regardless of the width of the strip material, and the working effect is good.

Description

technical field [0001] The invention relates to a hydraulic shearing and pressing device of an aluminum strip rolling mill, which is applied to a hot continuous rolling mill of an aluminum strip and belongs to the technical field of metallurgical industrial equipment. Background technique [0002] At present, in the existing hot rolling mills for aluminum strips, a heavy hydraulic shear and a light hydraulic shear are sequentially installed after the rough rolling mill and before the finishing mill. The heavy-duty hydraulic shear is used to cut the head and tail of the thicker aluminum plate, remove the warping of the head and tail of the thicker aluminum plate, and facilitate subsequent rolling. The plate is pressed by several cylinder pressing devices set on the upper tool holder body of the heavy-duty hydraulic shear Tight, the working process of the cylinder pressing device is that the gas enters the upper tool holder body from the air inlet, and then enters the cylinder...

AI Technical Summary

Problems solved by technology

[0003] Considering the poor synchronization performance of the cylinders in the traditional cylinder pressing device, in order to reduce the indentation left on the strip, generally several cylinders each have an indenter, which is pressed on the surface of the strip under the action of gas pressure. The width of the strip is different, the number of indenters pressed on the surface of the strip is also different, and the area of ​​each indenter pressed on the strip is also different, so the lateral pressure on each cylinder is different, resulting in the wear of each cylinder The degree and service life are different, and sometimes the cylinder with large force will be stuck, so the actual use effect is very unsatisfactory

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