Multi-dimensional controllable modularization six-roller mill

Abstract

The invention discloses a multi-dimensional controllable modularization six-roller mill which comprises a mill housing, a roll system, an axial locking device, a hydraulic bending roll device, a supporting roll balancing device, a roll system compensating device and a hydraulic pressure-up fine adjustment device. The multi-dimensional controllable modularization six-roller mill further comprises an axially movable locking device and an axially moving device. The hydraulic bending roll device comprises a combination bending roll block, a bending roll hydraulic cylinder and a vertical sliding rail, wherein the bending roll hydraulic cylinder is used for adjusting roll system flexures, the vertical sliding rail is fixedly arranged on the mill housing, and an intermediate roll and a working roll are installed on the combination bending roll block. the axially movable locking device comprises a support I, a movable hydraulic cylinder I and a locking hydraulic cylinder, wherein the support I is connected fixedly with the combination bending roll block, the movable hydraulic cylinder I is installed on the support I and used for driving the working roll to move in the axial direction, and the locking hydraulic cylinder is installed on the support I and used for locking the working roll. The axially moving device comprises a support II and a moving hydraulic cylinder II, wherein the support II is fixedly connected with the combination bending roll block and the moving hydraulic cylinder II is installed on the support II and used for driving the intermediate roll to move in the axial direction. The axially movable locking device and the axially moving device are respectively arranged on two sides of the mill stand.

Description

technical field [0001] The invention belongs to the technical field of metal rolling, and in particular relates to a multi-dimensional controllable modularized six-high rolling mill used for continuous cold rolling equipment, aluminum rolling equipment or strip leveling equipment. Background technique [0002] With the rapid development of modern industry, the fields of industry, automobile, construction and household appliances have put forward higher and better quality requirements for cold-rolled strip products, especially for the dimensional accuracy, shape and strength grade of cold-rolled strip steel put forward higher requirements. [0003] In the field of modern production, the demand for high-quality plate and strip is increasingly urgent, especially the demand for wide-band high-strength plate and strip is also becoming more and more apparent, while the traditional four-roll or six-roll rolling mill for electric reduction cannot adapt to wide-band high-strength Pl...

AI Technical Summary

Problems solved by technology

However, since the moving device of the intermediate roll of the six-high rolling mill does not have the ability to bear large axial loads, it is not suitable for moving the rolls on-line during rolling, let alone bear large axial loads, and the stability of the axial moving device The performance and synchronization are poor, and the requirements for the hydraulic control system are high. A slight leak in the hydraulic system will cause the roll to drift, which will cause the rolling mill to break the belt and damage the roll, or even damage the roll; mechanism, so that the operating speed is not too fast when changing rolls, otherwise it is easy to cause mechanical shock and damage mechanical equipment; in addition, the steering of the positive and negative bending rolls of this type of six-high rolling mill has a certain idle stroke, which is not conducive to the stability of the control

Therefore, the six-high rolling mill can only be adapted to a certain medium-narrow and equal-width strip, and the controllable adjustment means can only meet the rolling requirements of general conventional requirements, and cannot meet the rolling of wide and thick plates and strips, and is not suitable for The rolling of high-hardness plate and strip is not suitable for rolling with high controllability and flexible control means.

[0005] Japanese patent 66307 / 1981 discloses a six-high rolling mill with combined control of intermediate roll bending and shifting. The diameter of the working rolls is small, but the bending force of this type of rolling mill has a great influence on the eccentricity of the roll bearing during the shifting, which is not conducive to rolling. At the same time, the upper roll of the currently used six-high rolling mill needs to be backed out by the lower roll when the roll is changed. Due to the limitation of the local size, the depth of the upper roll falling on the lower roll pin is small, and it is difficult to overcome the forward buffer of the roll. force, causing the roll to fall off or fall off when the roll is moving forward, which affects the rhythm of roll change and is not conducive to production

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