CN211218111U

CN211218111U - Roller system combination for eliminating roller marks of temper mill

Info

Publication number: CN211218111U
Application number: CN201922203255.9U
Authority: CN
Inventors: 汪红兵; 齐占成; 王景新
Original assignee: Maanshan Iron and Steel Co Ltd
Current assignee: Maanshan Iron and Steel Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-11
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a eliminate roller system combination of levelling machine roll mark belongs to hot rolling pickling board and levels technical field. The utility model discloses an eliminate combination of roller system of levelling machine roll mark, including following belted steel direction of advance, and the crisscross tensioning roller that sets up in two surfaces about the belted steel, tensioning roller two, tensioning roller three, tensioning roller four, tensioning roller five and tensioning roller six, the roll surface cladding of six above-mentioned rollers has the encapsulating layer, the roller type adopts the rubber roll promptly, roll surface compression ratio is greater than 12%, current design roll surface is for plating hard chromium mode, in order to reach wear-resisting, withstand voltage's purpose, but the chrome-plated roller is because there is not elastic deformation, skid easily, produce the roll mark, and new design adopts roll surface design encapsulating layer, in order to satisfy wear-resisting, withstand voltage's requirement, and roll surface compression ratio is greater than 12%, good elasticity, permanent deformation volume is little.

Description

Roller system combination for eliminating roller marks of temper mill

Technical Field

The utility model relates to a hot rolling pickling board levels technical field, more specifically says so a roller system combination of elimination levelling machine roll mark.

Background

At present, domestic hot-rolled pickled plates are basically provided with a leveler, the leveler can improve the surface quality of strip steel and eliminate the plate type defects of C warping and the like, and the leveler is one of the most important devices of the hot-rolled pickled plates. The hot-rolled pickled plate belongs to an end product for external sales, has high requirements on the surface quality of a plate strip, and is common in product degradation caused by surface defects of the strip steel. Wherein the large number of roll marks are produced by the temper mill.

The only feasible method for eliminating the roll mark is to frequently replace the tension roll in the temper mill, and the service life of the tension roll in the general temper mill is not more than three months. Because the position requirement of the roller system in the leveling machine is very high, the roller change needs a long time to be completed every time, and proper countermeasures cannot be found by production branch plants and equipment personnel all the time.

As disclosed in Chinese patent publication No.: CN109332387A, publication date: 2019, 2, 15 and discloses a temper mill for preventing the middle wave shape of a thin hot-rolled and acid-washed temper sheet, a production system and a production method. The levelling machine includes last working roll and lower working roll that uses the rolling line as the plane of symmetry to and go up backup roll and bottom suspension runner, belted steel passes between from last working roll and the bottom suspension runner, it is the cylindrical roller of concave surface in the middle of to go up the working roll, the cylindrical roller that is convex surface in the middle of the working roll is down. The invention can reduce or even eliminate the middle wave shape of the low-carbon thin strip steel, overcomes the problem of the middle wave shape of the thin strip steel after uncoiling caused by the production of the thin strip steel by the traditional pickling line, is beneficial to the subsequent transverse cutting, longitudinal cutting and forming processing production, can realize continuous pickling at the same time, has high production efficiency, but does not solve the problem of short service life of a working roll, namely a tensioning roll.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model discloses a roller system combination for eliminating the roll mark of a temper mill, which aims at the defects and the defects of short service life of a tension roller when the roll mark of strip steel is eliminated by the temper mill of the prior hot-rolled pickled plate. The utility model discloses a change the mode that the roll surface plated hard chromium, the roll surface cladding has the rubber coating layer, and the roll surface compression ratio is greater than 12%, not only satisfies wear-resisting, withstand voltage requirement, and elasticity is good, and permanent deformation volume is little to the roll mark has been eliminated.

2. Technical scheme

When the existing temper mill is put into operation, the roller surface of a tension roller is compressed, the linear velocity of strip steel changes, but the wrap angle between the strip steel and a roller system in the temper mill is smaller (less than or equal to 17 degrees), and the strip steel slides relatively on the surface of the roller system in the temper mill to compensate the linear velocity change, so that the surface of the roller is scratched, and the basic reason for generating roller marks on the temper mill is caused.

To above problem, the utility model provides a technical scheme does:

the utility model provides an eliminate combination of roller system of levelling machine roll mark, include along belted steel advancing direction, and the crisscross tensioning roller that sets up in two surfaces about the belted steel, tensioning roller two, tensioning roller three, tensioning roller four, tensioning roller five and tensioning roller six, the roll surface cladding of above six rollers has the encapsulating layer, the roller type adopts the rubber roll promptly, the roll surface compression ratio is greater than 12%, present design roll surface is the hard chromium plating mode, in order to reach wear-resisting, withstand voltage purpose, but the chromium plating roller is because there is not elastic deformation, skid easily, produce the roll mark, and new design adopts roll surface design encapsulating layer, in order to satisfy wear-resisting, withstand voltage's requirement, and roll surface compression ratio is greater than 12%, good elasticity, permanent deformation volume is little.

According to the further technical scheme, the height H of a rolling line formed between the third tension roller and the fourth tension roller is +/-2 mm, and the use of the temper mill can be met through self compression of the rubber roller.

According to the further technical scheme, the adjusting pads are additionally arranged at the bottoms of the roller bearing seats of the first tensioning roller, the second tensioning roller, the fifth tensioning roller and the sixth tensioning roller, wrap angles are formed among the first tensioning roller, the second tensioning roller, the fifth tensioning roller, the sixth tensioning roller and the band steel, and therefore the rubber covered layer is prevented from deforming after the rubber covered roller is used for a long time.

According to a further technical scheme, the thickness of the adjusting pad is 2 mm; the rubber coating layer is made of polyurethane rubber, the thickness of the rubber coating layer is 10mm, the polyurethane elasticity is good, the permanent deformation is small, and the requirement that the compression ratio of the roller surface is larger than 12% can be met by the thickness of 10 mm.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the roller system combination for eliminating the roller mark of the temper mill adopts a roller coating polyurethane material mode, not only meets the requirements of wear resistance and pressure resistance, but also has good polyurethane elasticity and small permanent deformation;

(2) the roller system combination for eliminating the roller mark of the temper mill has the advantages that the position of a roller bearing seat is additionally provided with a 2mm adjusting pad, a roller surface and strip steel form a wrap angle, and the plastic deformation of polyurethane after the roller bearing seat is used for a long time is mainly considered;

(3) the roller system combination for eliminating the roller mark of the temper mill of the utility model realizes the design consistent with the front and rear roller systems of the equipment body, and completely abandons the design of a high-hardness and incompressible roller system in the temper mill; the novel roller system effectively avoids the problem that the band steel is back printed on the band steel after scratching the roller body coating, and fundamentally solves the problem of the roller printing of the temper mill;

(4) the utility model discloses an eliminate roller of levelling machine roll mark is the combination, and the mounting form of roller type design and roller has all changed, and the roller type adopts the rubber roll, and the roller is the position to be the high H2 mm of rolling line, satisfies the use of levelling machine through roller self compression.

Drawings

FIG. 1 is a schematic view of a prior art temper mill roll system;

FIG. 2 is a schematic structural view of the roller system assembly of the leveling machine of the present invention;

fig. 3 is the structural schematic diagram of the tension roller in the present invention.

In the figure: 1-tensioning roller I; 2-tensioning roller II; 3-tensioning roller III; 4-tensioning roller four; 5-tensioning roller five; 6-tensioning roller six; 7-pass line; 8-wrap angle; 10-strip steel; 11-an encapsulating layer; 12-roll chock; 13-adjusting the pad.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in fig. 1, a strip steel 10 in the prior art is horizontally contacted with the roll surfaces of a tension roll I1, a tension roll II 2, a tension roll V5 and a tension roll II 1, the wrap angle 8 of each tension roll and the strip steel 10 is 0 °, and therefore, a high-hardness and incompressible roll system design is required in the existing temper mill, the surface hard chromium plating treatment is adopted, the thickness of the hard chromium plating is generally 0.08mm, when the temper mill is put in, the roll surface of the tension roll compresses, the strip steel has linear velocity change, and the strip steel generates relative sliding on the roll system surface in the temper mill to compensate the linear velocity change, so that the roll surface is scratched, which is the root cause of roll mark generation of the temper mill.

Example 1

The roller system combination for eliminating the roller mark of the temper mill in the embodiment is shown in fig. 2, and comprises a first tensioning roller 1, a second tensioning roller 2, a third tensioning roller 3, a fourth tensioning roller 4, a fifth tensioning roller 5 and a sixth tensioning roller 6 which are arranged along the advancing direction of a strip steel 10 and are arranged on the upper surface and the lower surface of the strip steel 10 in a staggered mode, wherein the roller surfaces of the first tensioning roller and the second tensioning roller are wrapped with an encapsulating layer 11, namely the roller type adopts a rubber roller, the roller surface compression ratio is greater than 12%, the roller surface design encapsulating layer 11 is adopted in the new design of the embodiment, so that the requirements of wear resistance and pressure resistance are met, the roller surface compression ratio is greater than 12%, the elasticity is.

Example 2

The basic structure of the roller system combination for eliminating the roller mark of the planisher in the embodiment is the same as that in embodiment 1, and the differences and improvements are that: the height H of a rolling line 7 formed between the third tension roller 3 and the fourth tension roller 4 is +/-2 mm, and the use of the temper mill can be met through self compression of the rubber roller. As shown in fig. 3, an adjusting pad 13 is added at the bottom of the roller bearing seat 12 of the first tensioning roller 1, the second tensioning roller 2, the fifth tensioning roller 5 and the sixth tensioning roller 1, and a wrap angle 8 is formed between the corresponding first tensioning roller 1, the second tensioning roller 2, the fifth tensioning roller 5, the sixth tensioning roller 1 and the strip steel 10, so as to prevent the rubber covered layer 11 from deforming after the rubber covered roller is used for a long time.

Example 3

The basic structure of the roller system combination for eliminating the roller mark of the planisher in the embodiment is the same as that in the embodiment 2, and the differences and improvements are that: the thickness of the adjusting pad 13 is 2 mm; the rubber coating layer 11 is made of polyurethane rubber, the thickness is 10mm, the polyurethane elasticity is good, the permanent deformation is small, and the requirement that the compression ratio of the roller surface is larger than 12% can be met by the thickness of 10 mm.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides an eliminate roller of levelling machine roll mark is combination, includes along belted steel (10) direction of advance to tensioning roller (1), tensioning roller two (2), tensioning roller three (3), tensioning roller four (4), tensioning roller five (5) and six (6) of tensioning roller that two surfaces crisscross set up about belted steel (10), its characterized in that: the roller surface cladding of tensioning roller one (1), tensioning roller two (2), tensioning roller three (3), tensioning roller four (4), tensioning roller five (5) and tensioning roller six (6) has rubber coating layer (11), and the roller surface compression ratio is greater than 12%.

2. The roller system combination for eliminating the roll mark of the temper mill according to claim 1, wherein: and the height H of a rolling line (7) formed between the third tension roller (3) and the fourth tension roller (4) is +/-2 mm.

3. The assembly of claim 2, wherein the roll system comprises: the bottom of a roller bearing seat (12) of the first tensioning roller (1), the second tensioning roller (2), the fifth tensioning roller (5) and the sixth tensioning roller (6) is additionally provided with an adjusting pad (13), and wrap angles (8) are formed between the corresponding first tensioning roller (1), the second tensioning roller (2), the fifth tensioning roller (5), the sixth tensioning roller (6) and the strip steel (10).

4. The assembly of claim 3, wherein the roll system comprises: the thickness of the adjusting pad (13) is 2 mm; the rubber coating layer (11) is made of polyurethane rubber and is 10mm thick.