CN216369658U

CN216369658U - Roller

Info

Publication number: CN216369658U
Application number: CN202123058685.XU
Authority: CN
Inventors: 马嘉; 刘剑; 李港宇; 肖飞; 王石
Original assignee: Sichuan Pangang Jiade Precision Technology Co ltd
Current assignee: Sichuan Pangang Jiade Precision Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-26
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to the technical field of rollers, and provides a roller for rolling a steel strip. According to the utility model, the rolling contact part which is only contacted with the part of the rolling outer zone of the side edge of the steel strip close to the rolling deformation zone is arranged, so that the area with a larger diameter of the roll body is not contacted with the steel strip on the basis of not influencing the deformation of the rolling deformation zone of the steel strip, thereby reducing the risk of scratching the steel strip and improving the quality of the rolled steel strip.

Description

Roller

Technical Field

The utility model relates to the technical field of rollers, in particular to a roller.

Background

The steel section is usually formed by cold roll forming, which includes passing a steel strip through a plurality of sets of rollers arranged in sequence, and then continuously bending the steel strip in a transverse direction under the action of the rollers to roll the steel strip into a predetermined shape.

The existing roller usually comprises a roller body with a rolling effect, at the initial rolling stage, the side edge of a steel strip is continuously bent after being rolled by a plurality of groups of rollers, the side edge of the steel strip is continuously lengthened along with the continuous bending of the steel strip, and when the steel strip enters the next group of rollers for rolling, all areas of the outer wall of the side edge of the steel strip are usually completely contacted with the roller body wall of the roller. However, the linear velocities at different diameters on the wall of the roll body of the roll are often different, and the linear velocity corresponding to the position with the larger diameter is also larger, at this time, a larger linear velocity difference is generated between the roll body of the roll and the steel strip, and the condition that the steel strip is scratched is likely to occur in the area with the larger linear velocity on the wall of the roll body, so that the quality of the finally rolled product is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a roller, which effectively reduces the risk of scratching a steel strip in an area with larger linear velocity difference between a roller body and the steel strip by reducing the contact area between the roller body and the outer rolling area at the side edge of the steel strip, and improves the quality of the rolled steel strip.

The embodiment of the utility model is realized by the following technical scheme:

a roll for rolling of a steel strip comprising a roll body including a rolling contact portion configured to contact only a portion of a rolled outer zone of a side edge of the steel strip immediately adjacent a rolled deformation zone of the steel strip.

Optionally, the number of the rolling contact parts is two, and the two rolling contact parts correspond to the side edges of the steel strip one to one.

Further, the roll body still includes the rolling supporting part that is used for supporting the steel band, rolling supporting part locates two between the rolling contact portion, two the rolling contact portion passes through rolling supporting part connects.

Optionally, the roller body further comprises a non-rolling contact portion, the non-rolling contact portion is arranged close to the rolling contact portion, and the non-rolling contact portion extends along the side edge of the steel strip and gradually gets away from the side edge of the steel strip.

Optionally, the roller further comprises a roller shaft, the roller body is sleeved on the outer wall of the roller shaft and rotates coaxially with the roller shaft, and the roller shaft is in transmission connection with an external driving device.

Further, the roller body and the roller shaft are integrally formed.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

the utility model has reasonable design and simple structure, and the rolling contact part which is only contacted with the partial rolling outer zone of the side edge of the steel strip close to the rolling deformation zone is arranged, so that the zone with larger diameter of the roll body is not contacted with the steel strip on the basis of not influencing the deformation of the rolling deformation zone of the steel strip, thereby realizing the reduction of the risk of scratching the steel strip and improving the quality of the rolled steel strip.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a prior art steel strip after rolling according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a prior art roll for rolling steel strip according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 2

FIG. 4 is a schematic structural view of a steel strip rolled by the rolls provided by the embodiment of the utility model;

fig. 5 is an enlarged view at B in fig. 4.

Icon: 1-steel strip, 101-straight line segment, 102-side edge, 103-arc transition structure, 2-roller, 201-roller body, 2011-rolling contact part, 2012-non-rolling contact part, 2013-rolling support part, 202-roller shaft and 3-lower pressing roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

After the existing steel strip 1 is rolled in the initial stage, the section of the existing steel strip 1 is shown in fig. 1, and at this time, the steel strip 1 comprises a straight line section 101, side edges 102 positioned at two sides of the straight line section 101, and an arc-shaped transition structure 103 between the straight line section 101 and the side edges 102; the strip 1 now needs to be passed to the next set of rolls 2 for further rolling.

However, the structure of the conventional roll 2 in actual use is shown in fig. 2, and when the steel strip 1 passes through the roll 2, referring to fig. 3, all areas of the outer wall of the side edge 102 of the steel strip 1 are in full contact with the wall of the body 201 of the roll 2, and the rolling of the steel strip 1 is realized by the lower roll 3. However, since the linear velocities of different parts on the wall of the roll body 201 are different, and the linear velocity corresponding to the part with the larger diameter is also larger, a larger linear velocity difference is formed between the steel strip 1 and the roll body 201 of the roll 2, and the steel strip 1 is scratched in the area with the larger linear velocity on the wall of the roll body 201, which affects the quality of the rolled steel strip 1.

To this end, referring to fig. 4 and 5, the present embodiment provides a roll 2 for rolling a steel strip 1 to solve the above technical problems. The rolling deformation zone in this embodiment refers to a deformed area of the steel strip 1, the rolling deformation zone of the steel strip 1 in this embodiment corresponds to the arc transition structure 103 of the steel strip 1, the outer rolling zone refers to an area that is not deformed except the rolling deformation zone, and the outer rolling zone of the steel strip 1 in this embodiment refers to the side edge 102 of the steel strip 1.

Specifically, the roll 2 includes roll body 201 and roller 202, and roll body 201 cover is established at roller 202 outer wall and with the coaxial rotation of roller 202, and roller 202 is connected with outside drive arrangement (like the motor) transmission simultaneously to drive roller 202 through outside drive arrangement and rotate, in order to utilize roller 202 to drive roll body 201 and rotate, can also play the effect of conveying steel band 1 when realizing rolling steel band 1. Meanwhile, in order to improve the structural strength of the roll 2, in practical implementation, the roll body 201 and the roll shaft 202 may be formed in an integrated manner; of course, those skilled in the art can also reasonably select the connection mode of the roller body 201 and the roller shaft 202 according to actual needs, and redundant description is not repeated here.

The roll body 201 includes a roll contact 2011, a non-roll contact 2012, and a roll support 2013.

Considering that there are two side edges 102 of the steel strip 1, there are two corresponding rolling contact portions 2011, and the two rolling contact portions 2011 correspond to the side edges 102 of the steel strip 1 one by one, so that the two side edges 102 of the steel strip 1 are rolled by one roller 2 at the same time, and the rolling efficiency is improved. Meanwhile, the rolling contact 2011 is configured to contact only a portion of the rolled outer zone of the side edge 102 of the steel strip 1 immediately adjacent to the rolled deformation zone of the steel strip 1. That is to say, in the rolling process, only a part of the outer rolling region near the rolling deformation region of the outer wall of the side 102 of the steel strip 1 is in contact with the rolling contact part 2011, and because the linear velocity of the roll body 201 corresponding to the outer rolling region near the rolling deformation region of the steel strip 1 is small and is not greatly different from the linear velocity of the steel strip 1, the linear velocity difference between the steel strip 1 and the roll body 201 is small, so that the region with the large diameter of the roll body 201 (i.e. the region with the large linear velocity) is not in contact with the steel strip 1 on the basis of not influencing the deformation of the rolling deformation region of the steel strip 1, the risk that the steel strip 1 is scratched is reduced, and the quality of the rolled steel strip 1 is improved.

The rolling support 2013 serves to support the steel strip 1 from the bottom surface of the steel strip 1 and to convey the steel strip 1. Preferably, the rolling support 2013 is disposed between two rolling contacts 2011, and the two rolling contacts 2011 are connected by the rolling support 2013, so that the roll body 201 forms a complete structure.

On the other hand, it is considered that if only the rolling contact part 2011 is provided, the top end of the rolling contact part 2011 may press against the outer wall of the side edge 102 of the steel strip 1 in the actual rolling process, so that roll marks occur on the outer wall of the side edge 102 of the steel strip 1, and the quality of the rolled steel strip 1 is affected. Therefore, the roll body 201 further comprises a non-rolling contact part 2012 arranged close to the rolling contact part 2011, the non-rolling contact part 2012 extends along the side edge 102 of the steel strip 1 and is gradually far away from the side edge 102 of the steel strip 1, meanwhile, the rolling contact part 2011 and the non-rolling contact part 2012 are both in an arc structure, and the contour line of the rolling contact part 2011 is connected with the contour line of the non-rolling contact part 2012 to form a smooth curve, so that roll marks can be prevented from being generated on the steel strip 1 on the basis of reducing the risk of scratching the steel strip 1.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roll for rolling of a steel strip comprising a roll body, characterized in that the roll body comprises a rolling contact portion configured to contact only a partially rolled outer zone of a side edge of the steel strip immediately adjacent to a rolling deformation zone of the steel strip.

2. The roll according to claim 1, characterized in that there are two rolling contacts, two of which correspond one to one with the sides of the strip.

3. The roll of claim 2 wherein the roll body further comprises a roll support for supporting the strip, the roll support being disposed between two of the roll contacts, the two roll contacts being connected by the roll support.

4. The roll of claim 1 wherein the roll body further comprises a non-rolling contact portion disposed proximate the rolling contact portion, the non-rolling contact portion extending along and progressively away from the side edge of the strip.

5. The roll according to claim 1, further comprising a roll shaft, wherein the roll body is sleeved on the outer wall of the roll shaft and rotates coaxially with the roll shaft, and the roll shaft is in transmission connection with an external driving device.

6. The roll of claim 5 wherein the roll body is integrally formed with the roll shaft.