Bending cylinder block

Abstract

The invention discloses a bending cylinder block, comprising an upper bending cylinder block, a lower bending cylinder block, a bending hydraulic cylinder and two guide rods; the upper bending cylinder block and the lower bending cylinder block are connected by the bending hydraulic cylinder and move relatively along with the shrinkage of the bending hydraulic cylinder; the upper bending cylinder block and the lower bending cylinder block can move up and down on a support cylinder body; and the two guide rods are arranged between the upper bending cylinder block and the lower bending cylinder block and are respectively fixed on the upper bending cylinder block and the lower bending cylinder block. The invention can effectively improve the shape and quality of strip steel, can prolong the service life of the bending cylinder block, and is beneficial to the improvement of cold-rolling mill yield. The bending cylinder block of the invention is applicable to six-roller cold rolling mills, four-roller cold rolling mills and temper mills.

Description

technical field [0001] The invention relates to a work roll of a six-high cold rolling mill, in particular to a bending cylinder block of the work roll of a six-high cold rolling mill. Background technique [0002] Roll bending cylinder block is one of the important parts of cold rolling mill. In cold rolling production, the roll bending cylinder block makes the work roll and the back-up roll press against each other, preventing the work roll and the back-up roll from slipping during no-load and start-up; if the pressure of the bending roll cylinder block is increased, positive and negative roll bending can be realized It is very important to control the shape and quality of the steel plate. [0003] The future steel rolling production will develop towards high speed, heavy load, high strength, high rigidity, high precision, continuity and automation, which will also put forward higher requirements for the bending cylinder block. Therefore, it is extremely important to des...

AI Technical Summary

Problems solved by technology

[0006] 1. It is difficult for the upper and lower bending roll hydraulic cylinders to move synchronously, resulting in uneven force on the bearing seat of the work roll, affecting the shape and quality of the strip steel plate

[0007] 2. The cylinder rod of the bending roll hydraulic cylinder is vulnerable to impact when the rolling mill is working; the work roll slide plate is installed on the bending roll cylinder block, and the cylinder body of the bending roll cylinder block is impacted when the rolling mill is working, which will affect the service life of the bending roll cylinder block and strip shape and quality

[0008] 3. The cylinder rod of the roll bending hydraulic cylinder will rotate randomly during work, which will delay the roll changing time of the cold rolling mill and affect the output of the cold rolling mill

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