CN203791339U

CN203791339U - Fourteen-roller rolling mill

Info

Publication number: CN203791339U
Application number: CN201320828521.7U
Authority: CN
Inventors: 万飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-17
Filing date: 2013-12-17
Publication date: 2014-08-27
Anticipated expiration: 2023-12-17

Abstract

The utility model discloses a fourteen-roller rolling mill of rolling equipment used for rolling metal strips. According to the fourteen-roller rolling mill, the diameters of working rollers are reduced based on a six-roller rolling mill, the two sides of the upper working roller are respectively provided with a side pressing roller and a supporting roller, the two sides of the lower working roller are respectively provided with a side pressing roller and a supporting roller, the number of the side pressing rollers is four, and the number of the supporting rollers is four, so that the two sides of the upper working roller and the two sides of the lower working roller can be tightly pressed respectively, and thus the six-roller rolling mill is converted into the fourteen-roller rolling mill. The fourteen-roller rolling mill structurally comprises an upper supporting roller, a lower supporting roller, an upper middle roller, a lower middle roller, an upper working roller, a lower working roller, an upper working roller side pressing roller, a lower working roller side pressing roller, a supporting roller set, a supporting roller support and a supporting roller pressing hydraulic cylinder. The fourteen-roller rolling mill has the advantages that thin strips can be rolled, transverse lateral bending of the working rollers is avoided, vibration lines are prevented from being generated on the surfaces of the strips, positive bending rollers and negative bending rollers of the working rollers and the middle rollers are effectively utilized, and high-order unqualified strip shapes can be corrected in time.

Description

Ten four-high mills

Technical field

This utility model relates to a kind of ten four-high mills of the rolling equipment for rolling metal strip.

Background technology

In the prior art, known have a six-high cluster mill, and this milling train is by three rolls of upper roller system and three rolls of lower roll system, and six roots of sensation roll forms altogether, is called top working roll, upper intermediate calender rolls and top backing up roll, and bottom working roll, lower intermediate calender rolls and lower support roll.During rolled strip, band rolling between two working rolls, adopts the roll-bending cylinder of working roll and intermediate calender rolls to regulate template, relies on the uneven load of the axial traversing roll shifting adjustment steel edge portion of intermediate calender rolls, reduces the uneven wear of roll.This milling train can not the thinner band of rolling, when the thinner band of rolling, need to adopt the more milling train of multiple roll number, and the rolling mill structure more complicated of multiple roll number more, price is higher.Six-high cluster mill is in rolled strip process, and working roll also may occur transverse side bend, in the operation of rolling, there will be vibration line in strip surface, affects the surface quality of band.

The problem that prior art need to solve is: the upper working rolls and lower working rolls both sides at the six-high cluster mill of minor diameter working roll respectively increase a side pressure roller and a backing roll group, increase altogether four side pressure rollers and four backing roll groups, make six-high cluster mill be converted to ten four-high mills.Ten four-high mills can either reduce work roll diameter, for the thinner band of rolling, working roll does not have transverse side bend phenomenon, can in strip surface, there is not vibration line, can utilize again working roll and intermediate calender rolls roller to regulate Strip Shape, and the backing roll group of utilizing a plurality of backing rolls to form is adjusted the local roll shape of working roll in time.。

Summary of the invention

The purpose of this utility model is to provide a kind ofly can effectively control Strip Shape, can rolling compared with ten four-high mills of thin strip, overcome the following shortcoming of six-high cluster mill in the past: 1) can not the thinner band of rolling; 2) working roll there will be transverse side bend; 3) strip surface produces vibration line; 4) can not correct in time the bad plate shape of high order of band.This purpose can be achieved through the following technical solutions:

Upper working rolls and lower working rolls both sides at the six-high cluster mill of minor diameter working roll respectively increase a side pressure roller and a backing roll group, increase altogether four side pressure rollers and four backing roll groups, make six-high cluster mill be converted to ten four-high mills.Increase after side pressure roller and backing roll, the work roll diameter of milling train can reduce, can the thinner band steel of rolling, every backing roll group is comprised of a plurality of rollers with eccentric structure, can adjust respectively as required each independently backing roll, make each backing roll in a roller group implement segmentation bending to working roll, reach the object of timely adjustment plate shape.Owing to there being the support of side pressure roller and backing roll, working roll can laterally not produce lateral bending, also avoided strip surface to produce vibration line, and can make full use of the working roll of six-high cluster mill and the advantage of intermediate calender rolls roller, and the advantage of working roll segmentation bending regulates the plate shape of band.

The solution of this utility model is: the entrance and exit both sides at the upper and lower working roll of six-high cluster mill of minor diameter working roll, respectively arrange a side pressure roller and a backing roll group, totally four side pressure rollers and four backing roll groups.Four side pressure rollers and four backing roll groups, when working roll is worked, are pushed down upper working rolls and lower working rolls both sides with suitable thrust, do not allow working roll left and right lateral bending.The backing roll group being comprised of multiple roll, each backing roll can be adjusted separately by eccentric bushing, to guarantee that working roll, axially can segmentation crooked, adjusts the plate shape of band in time.

The beneficial effect of this utility model: 1) the thinner band of energy rolling; 2) working roll does not have transverse side bend phenomenon; 3) strip surface can not produce vibration line; 4) effectively utilize the positive and negative roller of working roll and intermediate calender rolls; 5) correct in time the bad plate shape of high order.

Accompanying drawing explanation

Fig. 1: the roller system of ten four-high mills of this utility model arranges figure

Specific embodiments

Referring to Fig. 1.Fig. 1 is that the roller system of this utility model arranges figure, comprising: top backing up roll 1, upper intermediate calender rolls 2, top working roll right support roller group 3, top working roll right side pressure roller 4 and top working roll 5.Top working roll left side pressure roller and backing roll group are set on the left side symmetrically.Identical roller system is set symmetrically below.The content of this utility model is: the left and right sides pressure roller of top working roll and bottom working roll and backing roll group, be separately positioned on the entrance and exit of upper and lower working roll, its axis and working roll axis basic horizontal or on the upper side 15～30mm, the pressure-acting line direction that backing roll compresses hydraulic cylinder is horizontal line or 15 ° on the upper side～30 °.Left and right backing roll is installed on backing roll balladeur train, and balladeur train is arranged in support, and support is positioned at working roll bearing block medial surface, and backing roll support and rolling-mill housing are fixed.Backing roll compresses hydraulic cylinder and is arranged on backing roll support, is used for side pressure roller and backing roll to be pressed on upper working rolls and lower working rolls face.

Claims

1. ten four-high mills in the rolling equipment of a rolling metal strip, it is characterized in that: a side pressure roller and one are respectively set by a plurality of backing roll groups that form with the backing roll of eccentric bushing in the upper working rolls and lower working rolls both sides of the six-high cluster mill of minor diameter working roll, totally four side pressure rollers and four backing roll groups, make six-high cluster mill be converted to ten four-high mills, backing roll axis or on the upper side 15～30mm substantially parallel with working roll axis, the pressure-acting line direction that compresses hydraulic cylinder is level or 15 ° on the upper side～30 °, left and right backing roll assembling is located on backing roll balladeur train, balladeur train is arranged in support, support is positioned at working roll bearing block medial surface, backing roll support and rolling-mill housing are fixed, backing roll compresses hydraulic cylinder and is arranged on backing roll support, be used for backing roll to be pressed on upper working rolls and lower working rolls face.

2. according to ten four-high mills described in claim 1, it is characterized in that: every backing roll group is comprised of a plurality of backing rolls with eccentric bushing.

3. according to ten four-high mills described in claim 1, it is characterized in that: a plurality of support rollers with eccentric bushing of every backing roll group can be adjusted separately.