CN202621588U - Stainless steel plate belt scale breaking machine - Google Patents

Abstract

The utility model provides a stainless steel plate belt scale breaking machine. A front material passing roller and a back material passing roller are arranged at two ends of a machine frame, a bending unit A, an upper bending and lower straightening unit B and an upper straightening and lower bending unit C are arranged on the machine frame in the operation direction of the plate belt to be processed, the bending unit A comprises an A upper bending roller system and an A lower bending roller system, the upper bending and lower straightening unit B comprises a B upper bending roller system and a B lower straightening system, the upper straightening and lower bending unit C comprises a C upper straightening roller system and a C lower bending roller system, the A upper bending roller system, the B upper bending roller system and the C upper straightening roller system are sequentially arranged at the upper part of the machine frame, and the A lower bending roller system, the B lower straightening roller system and the C lower bending roller system are correspondingly arranged at the lower part of the machine frame. The stainless steel plate belt scale breaking machine is used on an annealing acid washing production line, the acid washing line scale removing effect is improved, meanwhile, the flatness and straightness degree of band steel is improved, and the efficiency of the whole acid washing line and the quality of the band steel can be improved.

Description

The stainless steel sheet strip descaling mill

Technical field

The utility model relates to a kind of scale breading and uses equipment, specifically a kind of stainless steel sheet strip descaling mill.

Background technology

The oxide skin of corrosion resistant plate belt surface is dense, is cannot be directly to remove the oxide skin of belt steel surface through pickling if there is not the scale breading equipment for straightening.Behind the scale breading aligning, acid solution can directly be reacted with the oxide skin contact, and scale removal is more thorough.Scale breading not, acid solution can only be carried out pickling on the surface of oxide skin, and pickling is completely accomplished, and can form defectives such as not pickling like this.Stainless steel template through aligning is good, and glacing flatness is very high, and in the process of pickling, each position pickling effectiveness is same on the belt steel surface, can be because of a certain place, because template is bad, and produce overpickling and defective such as pickling not.The belt steel surface template of aligning is not fine, is corrugated template basically, and some places are protruding next, and some places are dented, cause some place possibly produce overpickling like this, and some place possibly produce not pickling.Lack the scale breading equipment for straightening that is exclusively used in stainless steel sheet strip in the market.

Summary of the invention

It is a kind of through dislocation and interlock between the upper working rolls and lower working rolls that the purpose of the utility model is to provide, the stainless steel sheet strip descaling mill that makes the band steel produce crooked deformation and then oxide skin is come off.

The technical scheme of the utility model is: material roller was crossed in material roller, back excessively before the frame two ends were provided with; Frame upper edge strip traffic direction to be processed is provided with bending unit A, goes up crooked aligning unit B down, goes up aligning bending unit C down; Bending unit A comprises that A goes up bending roll system under bending roll system, the A; Last crooked aligning unit B down comprises that B goes up smoothing roll system under bending roll system, the B; Last aligning bending unit C down comprises bending roll system under C upper straightening roll system, the C; The last bending roll of A system, the last bending roll of B system, C upper straightening roll system are loaded on upper rack successively; Under the A under bending roll system, the B under smoothing roll system, the C bending roll be that correspondence is loaded on frame lower; Said A go up bending roll system, the last bending roll of B system, C upper straightening roll system respectively through the swing arm of A bending roll, the swing arm of B bending roll, the swing arm of C smoothing roll and the A top roll system of being fixed in frame open fast oil cylinder, B top roll be open oil cylinder fast, the C top roll is to open oil cylinder fast to be in transmission connection.It is opened fast and depresses by the flexible drive of oil cylinder piston bar swing arm Spin Control for the last bending roll of A system, the last bending roll of B system, C upper straightening roll system.

Under the said A under bending roll system, the B under smoothing roll system, the C bending roll system be fixed on the sill of frame.

Said A goes up under bending roll system, the last bending roll of B system, the A that bending roll is respectively to comprise two row backing rolls, a working roll under bending roll system, the C.

Smoothing roll system respectively comprises two row backing rolls, a smoothing roll under said C upper straightening roll system, the B.

The utility model utilizes the greatest differences of matrix and oxide skin clad material performance; Adopt the mechanical means alternating bending; The stressed back of matrix material produces certain elastic-plastic deformation, and surface scale is not then owing to have plasticity and breakdown strength is lower, and is simultaneously poor with matrix adhesive force; Can not adapt to that form of metal changes and the internal stress that causes during greater than its breakdown strength when oxide skin like this, it just will break.Band upper and lower surfaces through bending roll the time is in different stress states, finally produces multi-form oxide skin and peels off.

The utility model comprises that a bending unit and two aligning unit and front and back cross material roller; Wherein the top roll of bending unit system and aligning unit top roll system can open fast and realize passing through smoothly of weld seam, and roller system is the adjustment that the oil cylinder displacement transducer carries out roll gap and approach through top roll.When the band steel passes through the bending roll of stretching-bending straightener; Two areal deformation situation of band steel are different, and a surface receives tension force stretching, and the interface of oxide skin and it and matrix can crack; And will be compressed the effect of power with the contacted another side of bending roll; Oxide skin can be squeezed to be broken into nettedly, and what have no longer is attached on the matrix, until coming off.This shows; The utility model scale breading effect obtain main rely on when crooked the effect of plasticity jumping-up since oxide skin be under the frequent compression chord state; Compression causes the oxide skin short texture until fragmentation, thereby and the decline of oxide skin hardness directly causes the decline of itself and matrix adhesive force more to help scale breading, although oxide skin comes off with bulk sometimes; But the innermost layer in itself and matrix bond exists with the powder shape basically, and this moment, compression more helped coming off of himself.The thickness of aligning stainless strip is 1.5～4mm.

The utility model is used for the annealing and pickling production line, improves the glacing flatness of band steel when improving the pickling line scale removal effect, with efficient and the strip quality that improves whole pickling line.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure, 1, frame, 2-1, the last bending roll of A system, bending roll system under 2-2, the A; 3, the preceding material roller of crossing, 4, the back crosses material roller, 5-1, A top roll system open oil cylinder fast, and 5-2, B top roll system open oil cylinder fast; 5-3, C top roll system open oil cylinder fast, 6-1, the last bending roll of B system, smoothing roll system under 6-2, the B, 7-1, C upper straightening roll system; Bending roll system under 7-2, the C, 8-1, the swing arm of A bending roll, 8-2, the swing arm of B bending roll, 8-3, the swing arm of C smoothing roll.

The specific embodiment

Among Fig. 1, the utility model comprises unit frame 1;

It is that bending roll is 2-2 under 2-1, the A that a bending unit A:A goes up bending roll;

One is gone up the crooked last bending roll of aligning unit B: B down is that smoothing roll is 6-2 under 6-1, the B;

Bending unit C:C upper straightening roll is that bending roll is 7-2 under 7-1, the C under the last aligning;

The preceding material roller 3 of crossing; Material roller 4 is crossed in the back;

Three top rolls are quick opening mechanism: A top roll system opens fast that oil cylinder 5-1, B top roll system open oil cylinder 5-2 fast, C top roll system opens oil cylinder 5-3 fast;

Three swing arms: A bending roll swing arm 8-1, B bending roll swing arm 8-2, C smoothing roll swing arm 8-3.

The last bending roll of A is that the last bending roll of 2-1, B is that 6-1, C upper straightening roll are that 7-1 opens oil cylinder 5-1, B top roll system fast through A bending roll swing arm 8-1, B bending roll swing arm 8-2, C smoothing roll swing arm 8-3 and A top roll system respectively and opens oil cylinder 5-2, C top roll system fast and open oil cylinder 5-3 fast and link to each other and be suspended on the frame 1; Bending roll is that smoothing roll is that bending roll is that 7-2 is fixed on respectively on the sill of frame 1 under 6-2 and the C under 2-2, the B under the A.Preceding material roller 3 excessively, back are crossed material roller 4 and are installed on the unit frame 1.

During work; A top roll system opens fast that oil cylinder 5-1, B top roll system open oil cylinder 5-2 fast, C top roll system opens oil cylinder 5-3 piston rod fast and releases; A bending roll swing arm 8-1, B bending roll swing arm 8-2, C smoothing roll swing arm 8-3 rotate around roller; Driving A, to go up bending roll be that the last bending roll of 2-1, B is that 6-1, C upper straightening roll are that 7-1 presses down, respectively with A under bending roll be that smoothing roll is that bending roll is that 7-2 forms to interlock and arranges under 6-2, the C under 2-2, the B.Strip is therefrom passed, and reaches the scale breading effect.Up-down rollers is that lap is controlled by displacement transducer control oil cylinder piston bar elongation.Before highly constant when crossing material roller 3, back and crossing material roller 4 and guarantee steel bands turnover descaling mills.

Arrow shown in the figure is that stainless strip carries out the stretch-bend leveller direction.Stainless steel belt passed through material roller, bending roll unit, two groups of smoothing roll unit, and steel band receives the effect of tensile stress and compression stress; Obtain band straight, that oxide skin comes off, the utility model aligning scale breading is effective, and production efficiency is high; Through on probation, obtain satisfied effect.

Claims (4)

1. stainless steel sheet strip descaling mill is characterized in that: cross material roller (3) before frame (1) two ends are provided with, material roller (4) is crossed in the back; Frame (1) upper edge strip traffic direction to be processed is provided with bending unit A, goes up crooked aligning unit B down, goes up aligning bending unit C down;

Bending unit A comprises that A goes up bending roll system (2-2) under bending roll system (2-1), the A;

Last crooked aligning unit B down comprises that B goes up smoothing roll system (6-2) under bending roll system (6-1), the B;

Last aligning bending unit C down comprises bending roll system (7-2) under C upper straightening roll system (7-1), the C;

The last bending roll system of A (2-1), the last bending roll system of B (6-1), C upper straightening roll system (7-1) are loaded on frame (1) top successively; Bending roll is that smoothing roll is that bending roll system (7-2) correspondence is loaded on frame (1) bottom under (6-2), the C under (2-2), the B under the A;

The last bending roll of A system (2-1), the last bending roll system of B (6-1), C upper straightening roll system (7-1) respectively through A bending roll swing arm (8-1), B bending roll swing arm (8-2), C smoothing roll swing arm (8-3) and the A top roll system of being fixed in frame (1) open fast oil cylinder (5-1), B top roll be open oil cylinder (5-2) fast, the C top roll is to open oil cylinder (5-3) fast to be in transmission connection.

2. stainless steel sheet strip descaling mill according to claim 1 is characterized in that: bending roll is that smoothing roll is that bending roll system (7-2) is fixed on the sill of frame (1) under (6-2), the C under (2-2), the B under the said A.

3. stainless steel sheet strip descaling mill according to claim 1 is characterized in that: said A goes up bending roll system (2-1), the last bending roll of B is that bending roll is that bending roll system (7-2) respectively comprises two row backing rolls, a working roll under (2-2), the C under (6-1), the A.

4. stainless steel sheet strip descaling mill according to claim 1 is characterized in that: smoothing roll system (6-2) respectively comprises two row backing rolls, a smoothing roll under said C upper straightening roll system (7-1), the B.