CN1733380A

CN1733380A - Roller type leveling machine

Info

Publication number: CN1733380A
Application number: CN 200510019391
Authority: CN
Inventors: 张本源; 张挺胜; 张挺锋; 张先荣; 张本安; 张本明
Original assignee: 张挺胜
Priority date: 2005-09-05
Filing date: 2005-09-05
Publication date: 2006-02-15
Anticipated expiration: 2025-09-05
Also published as: CN100354055C

Abstract

The invention relates to roll-type plate flattening machine belonged to forging equipment for metals shaping, which comprises active row work roller that has larger roller diameter, no supporting roller and active beam and less roller number, fixed row work roller with supporting roller and a frame, lifting tilting equipment, balancing equipment, main gear, and electric controller; wherein, it is pin joint between bearing block and bottom end of lifting screw bar in active row work roller. This machine can reduce difference of deflections on upper and down directions and improve flattening precision.

Description

Roller type leveling machine

Affiliated technical field

The present invention relates to a kind of forging equipment-gaugger of metal material shaping, specifically roller type leveling machine.

Background technology

Row's working roll generally has identical roll spacing and roller footpath with following row's working roll on the existing roller type leveling machine, when last row's working roll integral inclination adopts not parallel rectification technology, the deflection of sheet material successively decreases successively from being fed to discharging, desirable state is: discharging place is deformed into strain for the last time, and remaining is elastic-plastic deformation.For example, seven roller plate flattening machines, the 2nd, 4,6 rollers are movable row's working roll, up, can be along flipper guide lifting or inclination in the frame, the 1st, 3,5,7 rollers are fixing row's working roll, below, be installed in the frame frame, sheet material is the 2nd, 3,4,5,6 roller place co-variation shapes five times are strain at the 6th roller place of discharging, the 2nd, 3,4,5 roller places are elastic-plastic deformation, and deflection successively decreases successively, the 2nd, 4 roller place sheet materials are bent downwardly, the 3rd, 5 roller place sheet materials are bent upwards, clearly sheet material up and down amount of bow successively decrease successively respectively, but the amount of bow that sheet material makes progress is less than downward amount of bow, and this rectification to the original warpage of sheet material both direction is disadvantageous.

When activity row working roll has backing roll, backing roll is positioned at the top of movable row's working roll, on the necessary side's mounted thereto of movable row's working roll the moved cross beam, backing roll is also on the side's mounted thereto moved cross beam, when activity row's working roll and moved cross beam integral inclination, moved cross beam top and the bigger horizontal displacement of joint portion existence of the elevating screw lower end of rack-mounted movable row's working roll and moved cross beam above it.Therefore hinged connected mode can not be adopted in moved cross beam top and moved cross beam and the activity mounted thereto elevating screw bottom of arranging working roll, and must be able to slide mutually, be close together by the balancing spring of moved cross beam or the balancing cylinder elevating screw bottom with moved cross beam top and moved cross beam, this is disadvantageous to moved cross beam and movable tilt accuracy of arranging working roll.In the roller type leveling machine of backing roll was arranged, backing roll had increased the strength and stiffness of working roll, but because the contact of working roll and backing roll is two line contacts between the parallel Cylinder, had bigger contact stress, caused the concentrated wear of working roll.

Summary of the invention

In order to overcome the deficiencies in the prior art, the invention provides a kind of roller type leveling machine and can dwindle sheet material in the difference of the deflection of both direction up and down, still adopt not parallel rectification mode simultaneously, improve and correct precision.

Technical scheme of the present invention is, a kind of roller type leveling machine, comprise movable row's working roll, fixing row's working roll and backing roll thereof, frame, movable row's working roll lifting tilting gearing and bascule, main drive, electric control gear etc., it is characterized in that: movable row's working roll has than the big roller footpath, no backing roll and moved cross beam, between the elevating screw bottom of activity row's working roll bearing block and movable row's working roll, adopt hinged connected mode, the roller number of movable row's working roll is less than the roller number of fixing row's working roll, fixing row's working roll roller footpath is less than activity row working roll roller footpath, all or part of backing roll of establishing of fixing row's working roll.

A kind of roller type leveling machine, comprise movable row's working roll, fixing row's working roll, backing roll, frame, movable row's working roll lifting tilting gearing and bascule, main drive, electric control gear etc., it is characterized in that: row's working roll that the roller number is few has than the big roller footpath, the more row's working roll of roller number has less roller footpath, and two row's working rolls all have backing roll and crossbeam.

Described roller type leveling machine, row's working roll that the roller number is few can be established limit roller and lowering or hoisting gear, also can establish limit roller and lowering or hoisting gear simultaneously in two row's working roll limits few at the roller number and that the roller number is many.

Described roller type leveling machine can be installed the branch roll driving apparatus or divide row drive unit.

The present invention has identical roll spacing owing to arrange working roll up and down, and fixing row's working roll roller footpath is less than activity row working roll roller footpath, can reduce sheet material in the difference of the deflection of both direction up and down, still adopt simultaneously not parallel rectification mode, because in the three-point bending of sheet material, the drafts of the size of sheet deformation amount and the two roller roll spacings that play supporting role, intermediate calender rolls is relevant with the two roller rollers that play supporting role footpath, directly irrelevant with the intermediate calender rolls roller, the two roller rollers footpath that play supporting role is big more, same intermediate calender rolls drafts, the deflection of sheet material is big more.For example, in seven roller plate flattening machines, sheet material has five different three-point bendings, and

middle roller

2,3,4,5,6 is respectively the middle depress roller of five different three-point bendings, and another adjacent row's working roll of its left and right sides is the double-working that play supporting role.

Because the roller number of movable row's working roll is less than the roller number of fixing row's working roll, movable row's working roll does not contain the 3rd roller of load maximum, favourable movable row's working roll is not established backing roll, movable simultaneously row's working roll has than the big roller footpath, do not need backing roll and moved cross beam, between the elevating screw bottom of activity row's working roll bearing block and movable row's working roll, adopt hinged connected mode, the horizontal displacement that produces when satisfying movable row's working roll integral inclination by the strain of elevating screw and movement clearance that screw mandrel is paid, positional precision that can raising activity row working roll integral inclination.There is not bigger local contact stress in the working roll of no backing roll, and concentrated wear is little, and the life-span prolongs.

When the two rows working roll all has backing roll, row's working roll roller footpath that the roller number is few is bigger, also can reach and dwindle sheet material in the purpose of the difference of the deflection of both direction up and down, and sheet material at the 3rd roller place reciprocal since the 2nd, 4 roller diameter moderate finite deformation amounts reciprocal increase, sheet material is that the possibility of elastic-plastic deformation increases at the 5th roller place, and precision is corrected in favourable raising.

Because fixing row's working roll is main driving, movable row's working roll adopts auxilliary driving or passive, has avoided the different main drive gearratio difficulty that design brings of giving in two rows working roll roller footpath; The main driving adopted branch roller actuation techniques, the mechanical interference of avoiding not parallel rectification mode to cause.For the less sheet material of thickness, can adopt the two rows working roll to drive respectively.

The present invention is suitable for wide less or the roller type leveling machine that the roller number is less of plate.

The invention has the beneficial effects as follows, can improve the rectification precision.

Description of drawings

Fig. 1 is one of embodiment of the invention: seven roller plate flattening machine working roll structural plans.Wherein:

roller

1,2,3,4,5,6,7 is a working roll, and A1, A2 are backing roll.

Fig. 2 is two: nine roller plate flattening machine working roll structural plans of the embodiment of the invention.Wherein: 8,9 is the working roll of variable roller number, and A3, A4 are backing roll.

The specific embodiment

Fig. 1 is one of embodiments of the invention, seven roller plate flattening machines, among the figure 1,2,3,4,5,6,7 is working roll, 2,4,6 is movable row's working roll, no backing roll, the elevating screw of rack-mounted above it movable row's working roll and bearing block thereof drives down, movable row's working roll can be can be along flipper guide lifting or inclination in the frame, 1,3,5,7 are fixing row's working roll, be installed on the frame, A1, A2 is a

working roll

3,5 backing roll, be installed on the sill or chassis between two frames, sheet material is the 2nd, 3,4,5,6 roller place co-variation shapes five times, the 6th roller place in discharging is a strain, the 2nd, 3,4,5 roller places are elastic-plastic deformation, and drafts successively decreases successively, the 2nd, 4 roller place sheet materials are bent downwardly, the 3rd, 5 roller place sheet materials are bent upwards, at the 2nd roller place drafts maximum,

roller

1,3 diameters are less, at the 3rd roller place drafts second, but

roller

2,4 diameters are bigger, dwindled sheet material in the difference of the deflection of both direction up and down, and sheet material at the 5th roller place because

roller

4,6 diameter moderate finite deformation amounts increase, sheet material is that the possibility of elastic-plastic deformation increases at the 5th roller place, and precision is corrected in favourable raising.

Fig. 2 is two of embodiments of the invention, nine roller plate flattening machines, 8,9 is the working roll of variable roller number among the figure, A3, A4 are the backing roll of

working roll

1,7, vertical arrows represents that working roll 8,9 can separately elevating movement direction, after working roll 8,9 is raised to the disengaging duty, become seven roller plate flattening machines, identical with one of embodiment.Sheet metal thickness is less when being nine roller plate flattening machines, and

roller

2,4,6 no backing rolls also can meet the demands.

Roller

1,3,5,7 is main driving, adopts and divides the roller actuation techniques, and

roller

2,4,6 adopts auxilliary driving or passive, and main drive does not draw.

Claims

1, a kind of roller type leveling machine, comprise movable row's working roll, fixing row's working roll and backing roll thereof, frame, movable row's working roll lifting tilting gearing and bascule, main drive, electric control gear etc., it is characterized in that: movable row's working roll has than the big roller footpath, no backing roll and moved cross beam, between the elevating screw bottom of activity row's working roll bearing block and movable row's working roll, adopt hinged connected mode, the roller number of movable row's working roll is less than the roller number of fixing row's working roll, fixing row's working roll roller footpath is less than activity row working roll roller footpath, all or part of backing roll of establishing of fixing row's working roll.

2, a kind of roller type leveling machine, comprise movable row's working roll, fixing row's working roll, backing roll, frame, movable row's working roll lifting tilting gearing and bascule, main drive, electric control gear etc., it is characterized in that: row's working roll that the roller number is few has than the big roller footpath, the more row's working roll of roller number has less roller footpath, and two row's working rolls all have backing roll and crossbeam.

3, as claim 1,2 described roller type leveling machines, it is characterized in that: row's working roll that described roller number is few can be established limit roller and lowering or hoisting gear, also can establish limit roller and lowering or hoisting gear simultaneously in two row's working roll limits few at the roller number and that the roller number is many.

4, as claim 1,2, described roller type leveling machine, it is characterized in that: can install the branch roll driving apparatus or divide row drive unit.