CN103272862A - Pickling line scale breaking withdrawal and straightening machine - Google Patents

Abstract

The invention discloses a pickling line scale breaking withdrawal and straightening machine. The pickling line scale breaking withdrawal and straightening machine comprises two bending roller sets, a material roller, a straightening roller set and two dedusting devices, wherein the two bending roller sets are arranged on a machine frame, the material roller is located on the inlet side of a plate strip, the straightening roller set is located on the outlet side of the plate strip, and the two dedusting devices are arranged at an outlet of the plate strip. Two upper bending roller systems of the two bending roller sets are suspended on a cross beam of the machine frame through an A lifting mechanism oil cylinder and a B lifting mechanism oil cylinder respectively, and two lower bending roller systems of the two bending roller sets are connected with an A worm gear lead screw lift and a B worm gear lead screw lift respectively. The straightening roller set comprises a lower straightening roller system and two upper straightening rollers. The lower straightening roller system is connected with a C worm gear lead screw lift. The two upper straightening rollers and the material roller are fixed on the machine frame through bearing bases on the two ends respectively. The machine frame is a sealed machine frame with the sealed periphery. The two dedusting devices are negative pressure interfaces, wherein one end of each negative pressure interface is communicated with an inner cavity of the machine frame, the other end of each negative pressure interface is connected with a centrifugal fan, and the negative pressure interfaces are installed at the upper end and the lower end of the outlet of the plate strip respectively. The pickling line scale breaking withdrawal and straightening machine is good in scale breaking and dedusting effect, high in production efficiency, and high in quality of the surface of processed strip.

Description

Pickling line scale breading straightening machine

Technical field

The present invention relates to a kind of straightening machine, specifically is a kind of pickling line scale breading straightening machine.

Background technology

Progress along with science and technology, the increase of galvanizing product variety, the hot rolled plate strip has been proposed higher quality requirement, belt steel surface after hot rolling has oxide skin, for the quality that guarantees follow-up pickling process and the efficient that improves pickling, before entering descaling bath, often use special equipment that belt steel surface (string) is carried out mechanical scale breading and handle, make the oxide skin of belt steel surface come off or loosen.Existing scale breading straightening machine, there are some drawbacks, rigidity of frame is poor, and roller is the return inaccuracy, and roll gap and incision are inconvenient to adjust, strip is prone to various shape waves, scale removal effect is undesirable, and steel plate top layer oxide skin is removed not exclusively, and the oxide skin impurity that comes off stockpiles on the strip surface, influence the quality of follow-up pickling process and the efficient of pickling, cause strip surface quality difference can not satisfy the demand in market.

Summary of the invention

Goal of the invention of the present invention is poor at the existing equipment scale removal effect, problems such as strip surface quality difference, a kind of independent adjustment that realizes roll gap and approach is provided, and to finish roller be accurate return, can improve the pickling line scale breading straightening machine of scale breading rate and plate face quality, it can effectively remove strip oxide skin, improves the strip surface quality.

Technical scheme of the present invention is: comprise two groups of bending roll groups, the material roller excessively that is positioned at the strip inlet side that is arranged on the frame, the one group of smoothing roll group that is positioned at outlet side, with the A dust arrester that is arranged at the strip exit, B dust arrester, the A of two groups of bending roll groups goes up bending roll system, the last bending roll of B system is suspended on the crossbeam of frame by A elevating mechanism oil cylinder, B elevating mechanism oil cylinder respectively, under the A of two groups of bending roll groups under bending roll system, the B bending roll be to link with A worm gear screw lift, B worm gear screw lift respectively; One group of smoothing roll group comprises following smoothing roll system, A upper straightening roll, B upper straightening roll, and following smoothing roll system and C worm gear screw lift link, and A upper straightening roll, B upper straightening roll, mistake material roller are fixed on the frame by the bearing block at two ends respectively; Described frame be around the sealed frame of sealing, A dust arrester, B dust arrester are that an end is communicated with the frame inner chamber, the negative pressure interface that an end links to each other with centrifugal blower is loaded on the two ends up and down in strip exit respectively.

Described A goes up under bending roll system, the last bending roll of B system, the A bending roll system under bending roll system, the B, smoothing roll system is by two row backing rolls and a working roll formation down.

The present invention is provided with two groups of bending roll groups and one group of smoothing roll group and crosses material roller, wherein the last bending roll of bending roll group is to be fixed on the frame, the following bending roll system of bending roll group and the following smoothing roll of smoothing roll group are to regulate the working roll working depth by the worm gear screw lift, to adapt to the production requirement of various different-thickness strips.Under the acting in conjunction of two groups of bending roll groups and one group of smoothing roll group, the various shape wave defectives of strip are eliminated, the scale breading rate on strip surface increases substantially, the oxide skin impurity that comes off recycles via dust arrester, removed strip surface scale impurity effectively, improved the working environment of strip scale breading straightening, the plate face quality of strip is obviously improved, guarantee the quality of follow-up pickling process, be conducive to improve the efficient of pickling.Scale breading good dedusting effect of the present invention, production efficiency height, band plate face quality height after treatment.

Description of drawings

Accompanying drawing is structural representation of the present invention.

Among the figure: 1, frame; The last bending roll of 2-1, A system; The last bending roll of 2-2, B system; 3-1, A elevating mechanism oil cylinder; 3-2, B elevating mechanism oil cylinder; 4-1, A upper straightening roll; 4-2, B upper straightening roll; 5-1, A dust arrester; 5-2, B dust arrester; 6, smoothing roll is down; 7-1, C worm gear screw lift; 7-2, B worm gear screw lift; 7-3, A worm gear screw lift; Bending roll system under 8-1, the A; Bending roll system under 8-2, the B; 9, cross material roller.

The specific embodiment

In the accompanying drawing, the present invention includes two groups of bending roll groups being arranged on the whole airtight frame, be positioned at crossing material roller 9, be positioned at one group of smoothing roll group of outlet side and be arranged at A dust arrester 5-1, the B dust arrester 5-2 in strip exit of strip inlet side.

It is that the last bending roll of 2-1, B is that 2-2 is suspended on the crossbeam of unit frame 1 by A elevating mechanism oil cylinder 3-1, B elevating mechanism oil cylinder 3-2 respectively that the A of two groups of bending roll groups goes up bending roll, and the last bending roll of A is that the last bending roll of 2-1, B is that 2-2 can pass through A elevating mechanism oil cylinder 3-1, B elevating mechanism oil cylinder 3-2 fast lifting respectively; Bending roll is that bending roll is that 8-2 links with A worm gear screw lift 7-3, B worm gear screw lift 7-2 respectively under 8-1, the B under the A of two groups of bending roll groups.One group of smoothing roll group comprises that down smoothing roll is 6, A upper straightening roll 4-1, B upper straightening roll 4-2, following smoothing roll is 6 to link with C worm gear screw lift 7-1, A upper straightening roll 4-1, B upper straightening roll 4-2, crosses material roller 9 and is fixed on the frame 1 by the bearing block at two ends respectively.The worm gear screw lift is respectively by motor-driven.Following smoothing roll is 6, bending roll is that bending roll is that 8-1 can be that guiding mechanism C worm gear screw lift 7-1, B worm gear screw lift 7-2, A worm gear screw lift 7-3 adjust motor-driven spiral lift separately respectively by lower roll under 8-2, the A under the B, thereby realize the independent adjustment of roll gap and approach, and to finish roller be accurate return, A upper straightening roll 4-1, B upper straightening roll 4-2 cross material roller 9 and are installed on the whole airtight frame 1 by the bearing block at two ends respectively.A dust arrester 5-1, B dust arrester 5-2 are loaded on the two ends up and down in strip exit respectively, by being bolted on the frame 1, constitute the space of a sealing with frame 1, oxide skin and impurity dust are absorbed the place of appointment.The structure of A dust arrester 5-1, B dust arrester 5-2 is a closed conduit and the sealed frame that the sealing steel plate is installed all around, form an airtight space, link to each other with centrifugal blower by A dust arrester 5-1, B dust arrester 5-2 interface, centrifugal blower provides negative pressure, by A dust arrester 5-1, B dust arrester 5-2 pipeline the oxide skin powder is drawn onto fixing recovery point.In two groups of bending roll groups: the last bending roll of A is that bending roll is that 8-1 is a unit under 2-1 and the A, and the last bending roll of B is that bending roll is that 8-2 is a unit under 2-2 and the B.The last bending roll of A is that the last bending roll of 2-1, B is that bending roll is that bending roll is 8-2 under 8-1, the B, down smoothing roll is 6 to constitute by two row backing rolls and a working roll under 2-2, the A.In one group of smoothing roll group: following smoothing roll is 6, A upper straightening roll 4-1, B upper straightening roll 4-2 are unit.

Arrow shown in the accompanying drawing is the direction that band carries out the straightening of pickling scale breading.After band passed through material roller, through twice flecition of two groups of bending roll groups and the bending straightening effect of one group of smoothing roll group, surface scale came off, and the oxide skin impurity that comes off recycles via dust arrester.Scale breading good dedusting effect of the present invention, production efficiency height, strip surface quality height after treatment.

Claims (2)

1. pickling line scale breading straightening machine, it is characterized in that: comprise two groups of bending roll groups that are arranged on the frame, be positioned at the material roller (9) excessively of strip inlet side, be positioned at one group of smoothing roll group of outlet side, with the A dust arrester (5-1) that is arranged at the strip exit, B dust arrester (5-2), the A of two groups of bending roll groups goes up bending roll system (2-1), the last bending roll system of B (2-2) is respectively by A elevating mechanism oil cylinder (3-1), B elevating mechanism oil cylinder (3-2) is suspended on the crossbeam of frame (1), bending roll system (8-1) under the A of two groups of bending roll groups, under the B bending roll system (8-2) respectively with A worm gear screw lift (7-3), B worm gear screw lift (7-2) links; One group of smoothing roll group comprises smoothing roll system (6), A upper straightening roll (4-1), B upper straightening roll (4-2) down, following smoothing roll system (6) links with C worm gear screw lift (7-1), and A upper straightening roll (4-1), B upper straightening roll (4-2), mistake material roller (9) are fixed on the frame (1) by the bearing block at two ends respectively; Described frame (1) be around the sealed frame of sealing, A dust arrester (5-1), B dust arrester (5-2) are that an end is communicated with frame (1) inner chamber, the negative pressure interface that an end links to each other with centrifugal blower is loaded on the two ends up and down in strip exit respectively.

2. pickling line scale breading straightening machine according to claim 1 is characterized in that: described A goes up under bending roll system (2-1), the last bending roll system of B (2-2), the A bending roll system (8-2) under bending roll system (8-1), the B, smoothing roll system (6) is by two row backing rolls and a working roll formation down.

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