CN102794332A

CN102794332A - Turtle-back fault rear-mounted type improved concave-convex roller straightening machine for steel board

Info

Publication number: CN102794332A
Application number: CN2012102414657A
Authority: CN
Inventors: 麻斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2012-11-28

Abstract

The invention discloses a turtle-back fault rear-mounted type improved concave-convex roller straightening machine for a steel board, and belongs to the technical field of metal board rolling equipment. The turtle-back fault rear-mounted type improved concave-convex roller straightening machine comprises a roller path working table, a rack, an upper feeding roller, a lower feeding roller, a straightening transition convex roller, a straightening transition concave roller, a straightening convex roller, a straightening concave roller, an upper discharging roller, a lower discharging roller, four pairs of oil cylinders, and a driving device of feeding and discharging rollers. Each straightening roller comprises a convex roller placed above the steel board and a concave roller placed below the steel board. The four pairs of the lifting oil cylinders are respectively used for adjusting the rolling reductions of the upper feeding roller, the straightening transition convex roller, the straightening convex roller, and the upper discharging roller according to the thickness of the steel board and the turtle-back degree, so that the turtle-back defect of the steel board is flexibly and effectively straightened. The turtle-back fault rear-mounted type improved concave-convex roller straightening machine provided by the invention can be configured after a steel board cutting step of a steel roller straightening and cutting assembly line, so that the turtle-back defect of the steel board, caused by various factors, particularly a cutting factor, can be sufficiently straightened. Therefore, the evenness of the steel board is obviously improved.

Description

The concavo-convex roller straightener of the rear-mounted improvement of steel plate curvature of the spinal column defective

Technical field

The invention belongs to the metal plate coils technical field of processing equipment, especially relate to the concavo-convex roller straightener of a kind of rear-mounted improvement of steel plate curvature of the spinal column defective.

Background technology

Metal plate coils generally will just can become operable rectangle plate through aligning unit aligning, shearing.But the curvature of the spinal column defective that occurs in various degree at process light plate (especially, slab) is very general.The distortion of the circular arc of this steel plate width direction generally in the 5-25mm/m scope, although the scope that allows in GB receives severely restricts in actual use, causes the waste of resource.In the present solution, be a pair of concavo-convex roller of arrangement or mobile single roller before straightener basically, its principle all is with steel plate recurvation by force, in the hope of eliminating or reduce the curvature of the spinal column defective of steel plate before getting into straightener.But effect is unsatisfactory in practical application, and these technical schemes are not further promoted and used.

According to reported in literature and our observation, steel plate curvature of the spinal column defective is except that the coil of strip inhomogeneous cooling causes the factor of stress difference, and the mechanical change of steel plate also is the important reasons (1) of its formation during shearing.Built-in presser feet of shearing machine and external presser feet, the steel plate curvature of the spinal column defective after the shearing then present distinct " the head curvature of the spinal column " and " the afterbody curvature of the spinal column " two kinds of forms.This shows, settle the technical scheme of concavo-convex roller or mobile single roller unreasonable before the existing straightener.Mainly show concavo-convex roller or the single roller press-bending quantity not sufficient on the steel plate width direction, like the concavo-convex roller that domestic certain producer uses on the aligning unit, the press-bending amount only has 30mm/1800mm.Under this press-bending amount, what steel plate took place only is strain, but not reaches the plastic deformation (2) of aligning effect.In mobile single roller scheme, except that the press-bending quantity not sufficient,, remain the pattern of a simple pressure straightener in fact because the contact point of recurvation steel plate has only 3.And the shortcoming of this kind mode is to make each section of steel plate of even bending all obtain aligning continuously, therefore can not guarantee straightening quality, can only be used for local aligning and auxiliary aligning (3).In the existing scheme, if further strengthen the press-bending amount of steel plate, will cause the counter curvature of steel plate width direction excessive, steel plate can't get into upper and lower roll straightener roller parallel to each other, and the aligning on the length direction also just can't be accomplished.The more important thing is; Previously all having ignored the mechanical change that steel plate is taken place when shearing in the scheme also is to cause the important origin cause of formation of curvature of the spinal column defective, shears directly output of back, and the blanking sign indicating number piles and is processed finished products; The curvature of the spinal column defective that shearing causes can't be corrected, and the flatness of straightening steel plate is difficult to guarantee.

List of references:

(1) Cheng Yonggu. the genetic analysis of cut deal " curvature of the spinal column " defective. Henan is metallurgical, and 2011,19 (6): 25-26

(2) Cui Fu. aligning principle and aligning machinery (the 2nd edition). metallurgical industry publishing house, 2007:1-2

(3) Lian Jiachuan. straightening theory with batch theory. China Machine Press, 2011:5-7

Summary of the invention

The objective of the invention is: a kind of concavo-convex roller straightener of rear-mounted improvement that is applicable to straightening steel plate curvature of the spinal column defective is provided,, does not meet the phenomenon of customer requirements to solve the steel plate National standard.

Technical scheme of the present invention is: comprise raceway workbench, frame, feed roller, aligning transition convex roller, aligning transition spill roller, aligning convex roller, aligning spill roller, discharge roller, four pairs of hoist cylinders, feed roller and discharge roller drive units up and down up and down.Following feed roller, aligning transition spill roller, aligning spill roller, bottom discharge roller are positioned at steel plate below and fixed-site, and last feed roller, aligning transition convex roller, aligning convex roller, top discharge roller are positioned at the steel plate top and link to each other with oil cylinder.During the oil cylinder motion, the drafts of feed roller, aligning transition convex roller, aligning convex roller, top discharge roller on the scalable.Smoothing roll is made up of the concavo-convex roller of two groups of different curvature; Aligning transition convex roller and the preliminary recurvation of aligning transition spill roller guiding steel plate; Aligning convex roller and aligning spill roller are according to the aligning principle of " straighten crooked must excessively just "; With the further recurvation of the steel plate of curvature of the spinal column defective, when steel plate press-bending amount with spring-go amount when equating, steel plate curvature of the spinal column defective obtains aligning.

The invention has the beneficial effects as follows: owing to be configured in coil of strip aligning, cutting production line shearing completion later stage; The steel plate curvature of the spinal column defective no matter which kind of reason causes can be observed the state and the degree of defective easily through the raceway workbench, and regulates aligning transition convex roller, the aligning convex roller press-bending amount to steel plate in view of the above; The curvature of the spinal column defective of abundant straightening steel plate; Improve the flatness of steel plate, and can unit is smooth and easy is connected with aligning, carry out pipeline system and work continuously.

Description of drawings

Accompanying drawing is the structural representation of the concavo-convex roller straightener of the rear-mounted improvement of steel plate curvature of the spinal column defective of the present invention.From can finding out shown in the accompanying drawing, the present invention by raceway workbench 1, frame 2, go up feed roller 3, down feed roller 4, aligning transition convex roller 5, aligning transition spill roller 6, aligning convex roller 7, aligning spill roller 8, top discharge roller n, bottom discharge roller 10, feed roller oil cylinder 20 and 17, aligning transition convex roller oil cylinder 19 and 15, align convex roller oil cylinder 18 and 14, discharge roller oil cylinder 9 and 13, feed roller drive unit 16 and discharge roller drive unit 12 and form.

The specific embodiment

The aligning unit with coil of strip through uncoiling, aligning, shearing after; Steel plate gets into of the present invention going up between feed roller 3 and the following feed roller 4 through raceway workbench 1; Start feed roller oil cylinder 20 and 17, aligning transition roller oil cylinder 19 and 15 according to steel plate thickness and curvature of the spinal column degree, will go up feed roller 3 and be adjusted to correct position with aligning transition convex roller 5.Under the drive of feed roller drive unit 16, steel plate is admitted to aligning transition convex roller 5,6 recurvations tentatively by force of aligning transition spill roller, gets into aligning convex roller 7, aligning spill roller 8 then.Start aligning convex roller oil cylinder 18 and 14 according to the aligning situation of the curvature of the spinal column this moment, the upper-lower position of adjustment aligning convex roller 7, and with the further recurvation of steel plate, until finding out suitable press-bending amount, steel plate curvature of the spinal column defective obtains aligning, and flatness reaches requirement.The disengaging of steel plate plate tail is seen off under the drive of discharge roller drive unit 12 by top discharge roller 11, bottom discharge roller 10 after going up feed roller 3, following feed roller 4.

Above-described, only be configuration and the embodiment that the present invention is used for positive material loading aligning unit.Taking the aligning unit of anti-material loading, then concavo-convex roller position transposing is being installed (be the convex roller down, the spill roller is last) and get a desired effect equally.The improvement that this kind variation and other do not carry out through Creative Design should be regarded as protection scope of the present invention equally.

Claims

1. concavo-convex roller straightener of the rear-mounted improvement of steel plate curvature of the spinal column defective; Comprise raceway workbench (1), frame (2), go up feed roller (3), feed roller (4), aligning transition convex roller (5), aligning transition spill roller (6), aligning convex roller (7), aligning spill roller (8), top discharge roller (11), bottom discharge roller (10), feed roller oil cylinder (20,17), aligning transition convex roller oil cylinder (19,15), smoothing roll oil cylinder (18,14), discharge roller oil cylinder (9,13), feed roller drive unit (16), discharge roller drive unit (12) down; It is characterized in that: said smoothing roll comprises the aligning transition convex roller (5) and aligning convex roller (7) that is placed on the steel plate top; Be placed on the aligning transition spill roller (6) and aligning spill roller (8) of steel plate below; Said oil cylinder (20,17,19; 15; 18,14,9; 13) feed roller (3), aligning transition convex roller (5), aligning convex roller (7), top discharge roller (11) move up and down in the driving, and the variable in distance between feed roller (3), aligning transition convex roller (5) aligning convex roller (7), top discharge roller (11) and following feed roller (4), aligning transition spill roller (6), aligning spill roller (8), the bottom discharge roller (10) is gone up in adjustment respectively.

2. the concavo-convex roller straightener of the rear-mounted improvement of steel plate curvature of the spinal column defective according to claim 1 is characterized in that: said feed roller (4) down, aligning transition spill roller (6), aligning spill roller (8), bottom discharge roller (10) fixed-site, and last feed roller (3), aligning transition convex roller (5), aligning convex roller (7), top discharge roller (11) are connected to oil cylinder (20; 17,19,15; 18; 14,9,13) on.

3. the concavo-convex roller straightener of the rear-mounted improvement of steel plate curvature of the spinal column defective according to claim 2; It is characterized in that: said feed roller (3), feed roller (4), top discharge roller (11), the subsidiary drive unit of bottom discharge roller (10) down gone up, aligning transition convex roller (5), aligning transition spill roller (6), aligning convex roller (7), aligning spill roller (8) are not with drive unit.

4. according to any concavo-convex roller straightener of the described rear-mounted improvement of steel plate curvature of the spinal column defective of claim 1 to 3; It is characterized in that: said aligning transition convex roller (5), aligning convex roller (7) are symmetrical convex, and aligning transition spill roller (6), aligning spill roller (8) are symmetrical spill.