阅读说明：本技术 一种基于预弯冷却技术的轻轨型钢轧制设备及工艺 (Light rail section steel rolling equipment and process based on pre-bending cooling technology ) 是由 曹召盼 韩晓丽 高路闯 王勇刚 孙若东 于 2021-09-18 设计创作，主要内容包括：本发明涉及轧制技术领域,提出了一种基于预弯冷却技术的轻轨型钢轧制设备及工艺,包括沿输送装置输送方向设置在机架上的导向装置和粗轧装置,导向装置包括第三伸缩件、导向板和导向滚轴,第三伸缩件均设置在机架上,位于输送装置两侧,导向板设置在第三伸缩件伸缩端,导向滚轴转动设置在导向板上,粗轧机构包括第一粗轧装置和第二粗轧装置,第一粗轧装置,滑动设置在机架上,位于导向装置沿输送装置输送方向后,第二粗轧装置,滑动设置在机架上,位于第一粗轧装置底部,第一粗轧装置和第二粗轧装置滑动方向与输送装置输送方向垂直。通过上述技术方案,解决了现有技术中的粗轧占地面积大和磨损导向结构问题。(The invention relates to the technical field of rolling, and provides light rail section steel rolling equipment and a process based on a pre-bending cooling technology. Through the technical scheme, the problems of large occupation area and abrasion guide structure in rough rolling in the prior art are solved.)

1. A light rail section steel rolling device based on a pre-bending cooling technology comprises a conveying device (2), a guiding device (3) and a rough rolling mechanism (4) which are all arranged on a rack, wherein the rough rolling mechanism (4) is located behind the guiding device (3) along the conveying direction of the conveying device (2), and the light rail section steel rolling device is characterized in that the guiding device (3) comprises

A plurality of third telescopic pieces (5) which are arranged on the frame and are positioned at two sides of the conveying device (2),

the guide plates (6) are arranged at the telescopic end of the third telescopic part (5), a clamping space is formed between the guide plates (6) positioned at two sides of the conveying device (2), after the guide plates (6) move along with the telescopic end, the light rail section steel is clamped or loosened by the clamping space,

a guide rolling shaft (7) which is rotatably arranged on the guide plate (6) and is used for contacting and guiding the light rail section steel,

the rough rolling mechanism (4) comprises

A first rough rolling device (8) which is arranged on the frame in a sliding way and is positioned behind the guide device (3) along the conveying direction of the conveying device (2),

and the second rough rolling device (9) is arranged on the rack in a sliding manner and is positioned at the bottom of the first rough rolling device (8), and the sliding directions of the first rough rolling device (8) and the second rough rolling device (9) are vertical to the conveying direction of the conveying device (2).

2. A rolling plant for light rail section steel based on the preflex cooling technique as claimed in claim 1, characterized in that said first roughing device (8) comprises

An upper plate (10) arranged on the frame in a sliding way,

a first roller (11) rotatably provided on the upper plate (10),

and the second roller (12) is rotatably arranged on the upper plate (10) and is positioned below the first roller (11), and the first roller (11) and the second roller (12) form a first rough rolling hole.

3. A rolling plant for light rail section steel based on the preflex cooling technique as claimed in claim 2, characterized in that said second roughing device (9) comprises

A lower plate (13) which is arranged on the frame in a sliding way and is positioned at the bottom of the upper plate (10),

a third roller (14) rotatably disposed on the lower plate (13),

and the fourth roller (15) is rotatably arranged on the lower plate (13) and is positioned below the fourth roller (15), and the third roller (14) and the fourth roller (15) form a second rough rolling hole.

4. A rolling plant of light rail section steel based on preflex cooling technology, characterized in that the first rough rolling holes comprise a first hole (16), a second hole (17) and a third hole (18), the second rough rolling holes comprise a fourth hole (19), a fifth hole (20) and a sixth hole (21), the axis of symmetry of the second hole (17) is perpendicular to the axis of symmetry of the first hole (16), the third hole (18) and the first hole (16) are parallel.

5. The light rail steel rolling equipment based on the pre-bending cooling technology as claimed in claim 3, characterized by further comprising

A plurality of first ear plates (22) which are respectively arranged at two sides of the upper plate (10),

a plurality of second ear plates (23) which are respectively arranged at two sides of the lower plate (13),

the first telescopic piece (24) is arranged on the second ear plate (23), the first ear plate (22) is arranged at the telescopic end of the first telescopic piece (24), the first telescopic piece (24) drives the upper plate (10) to lift up and down through the first ear plate (22),

the second extensible member (25) is arranged on the rack, the second ear plate (23) is arranged at the extensible end of the second extensible member (25), and the second extensible member (25) drives the lower plate (13) and the upper plate (10) to ascend and descend through the second ear plate (23).

6. The light rail steel rolling equipment based on the pre-bending cooling technology as claimed in claim 5, characterized by further comprising

A first driving part (26) arranged on the first lug plate (22) and used for driving the second roller (12) to rotate, wherein the second roller (12) drives the first roller (11) to rotate through gear engagement,

and the second driving piece (27) is arranged on the second lug plate (23) and drives the third roller (14) to rotate, and the third roller (14) drives the fourth roller (15) to rotate through gear engagement.

7. The light rail steel rolling equipment based on the pre-bending cooling technology as claimed in claim 1, characterized by further comprising

A slideway (28) arranged on the frame and positioned in the front of the guide device (3) along the conveying direction of the conveying device (2),

a slide block (29) which is arranged on the slide way (28) in a sliding way and is vertical to the conveying direction of the conveying device (2),

a fourth telescopic element (30) arranged on the slide block (29),

the flat plate (31) is arranged at the telescopic end of the fourth telescopic piece (30), the fourth telescopic piece (30) drives the flat plate (31) to stretch in the direction perpendicular to the sliding direction of the sliding block (29), and the flat plate (31) is located between conveying rollers of the conveying device (2).

8. The light rail steel rolling equipment based on the pre-bending cooling technology as claimed in claim 7, characterized by further comprising

And the positioning sensor (1) is arranged on the sliding block (29), is positioned in the middle of the flat plate (31), and is used for positioning the position of the flat plate (31) through the positioning sensor (1).

9. A rolling process of light rail section steel based on a pre-bending cooling technology, which uses the light rail section steel rolling equipment based on the pre-bending cooling technology as claimed in claim 1, and is characterized by comprising the following steps

A. The guide device (3) and the rough rolling mechanism (4) are sequentially arranged on the frame along the conveying direction of the conveying device (2);

B. the conveying device (2) drives the light rail section steel to be conveyed forwards and reach the guide device (3), the third telescopic piece (5) drives the light rail section steel to move through the guide rolling shafts (7), and the guide rolling shafts (7) on the two sides position and clamp the light rail section steel;

C. the conveying device (2) continues to convey the light rail section steel, the light rail section steel enters the first rough rolling device (8), and the first rough rolling device (8) performs rough rolling on the light rail for multiple times;

D. the first rough rolling device (8) slides away, the second rough rolling device (9) slides to be aligned with the light steel rail, the conveying device (2) conveys the light steel rail into the second rough rolling device (9), the light steel rail is repeatedly rough rolled for the second time through the second rough rolling device (9), then the conveying device (2) conveys the light steel rail into the finish rolling device, the first rough rolling device (8) and the second rough rolling device (9) descend, the first rough rolling device (8) is aligned with the next light steel rail section steel, and the next light steel rail section steel is roughly rolled.

10. The rolling process of light rail steel based on pre-bending cooling technology as claimed in claim 9, wherein the step C further comprises

Light-duty rail carries out rough rolling through first hole (16), second hole (17), third hole (18), fourth hole (19), fifth hole (20) and sixth hole (21) in proper order, before getting into second hole (17), fourth extensible member (30) drive dull and stereotyped (31) carry out the turn-ups with light-duty rail, make things convenient for light-duty rail to get into second hole (17), when getting into third hole (18), drive dull and stereotyped (31) turn-ups rail once more through fourth extensible member (30).

Technical Field

The invention relates to the technical field of rolling, in particular to light rail section steel rolling equipment and a light rail section steel rolling process based on a pre-bending cooling technology.

Background

The press working method is that the metal blank is passed through the gap between a pair of rotating rollers (various shapes), the material section is reduced and the length is increased due to the compression of the rollers, and the press working method is the most common production mode for producing steel products and is mainly used for producing section bars, plate materials and pipe materials. The method comprises two types of hot rolling and cold rolling, wherein a rolled piece is drawn between rotating rollers by friction force and subjected to compression for plastic deformation, and the metal has certain size, shape and performance through rolling. The steel rail steel is professional section steel used for manufacturing rails of locomotives, cranes and the like, the light rail section steel belongs to the steel rail steel, the light rail section steel is rolled through two steps of rough rolling and finish rolling, the rough rolling is to roll the light rail section steel into section steel with a preliminary shape, then the section steel is shaped through the finish rolling, in the prior art, the rough rolling needs to be repeated for many times, the rough rolling is generally single-layer spreading or sectional type use, and the occupied area is large; the guide structure when getting into rough rolling is two planes, is sliding friction between shaped steel and the guide structure, and in transportation process, shaped steel high temperature can aggravate guide structure wearing and tearing.

Disclosure of Invention

The invention provides a light rail section steel rolling device and a light rail section steel rolling process based on a pre-bending cooling technology, and solves the problems of large occupied area of rough rolling and abrasion guide structure in the related technology.

The technical scheme of the invention is as follows:

a light rail section steel rolling device based on a pre-bending cooling technology comprises a conveying device, a guiding device and a rough rolling mechanism which are all arranged on a rack, wherein the rough rolling mechanism is located behind the guiding device along the conveying direction of the conveying device, and the guiding device comprises

A plurality of third telescopic pieces which are arranged on the frame and positioned at two sides of the conveying device,

the guide plates are arranged at the telescopic end of the third telescopic part, a clamping space is formed between the guide plates positioned at the two sides of the conveying device, after the guide plates move along with the telescopic end, the light rail section steel is clamped or loosened by the clamping space,

the guide rolling shaft is rotatably arranged on the guide plate and is used for being in contact with the light rail section steel for guiding,

the rough rolling mechanism comprises

The first rough rolling device is arranged on the frame in a sliding manner and is positioned behind the guide device along the conveying direction of the conveying device,

and the second rough rolling device is arranged on the rack in a sliding manner and is positioned at the bottom of the first rough rolling device, and the sliding directions of the first rough rolling device and the second rough rolling device are vertical to the conveying direction of the conveying device.

As a further technical scheme, the first rough rolling device comprises

An upper plate which is arranged on the frame in a sliding way,

a first roller rotatably provided on the upper plate,

and the second roller is rotatably arranged on the upper plate and is positioned below the first roller, and the first roller and the second roller form a first rough rolling hole.

As a further technical solution, the second rough rolling device comprises

The lower plate is arranged on the frame in a sliding manner and is positioned at the bottom of the upper plate,

a third roller rotatably disposed on the lower plate,

and the fourth roller is rotatably arranged on the lower plate and is positioned below the fourth roller, and the third roller and the fourth roller form a second rough rolling hole.

As a further technical solution, the first rough rolling hole includes a first hole, a second hole and a third hole, the second rough rolling hole includes a fourth hole, a fifth hole and a sixth hole, an axis of a symmetry axis of the second hole is perpendicular to an axis of a symmetry axis of the first hole, and the third hole is parallel to the axis of the first hole.

As a further step, also include

A plurality of first ear plates which are respectively arranged at two sides of the upper plate,

a plurality of second ear plates which are respectively arranged at two sides of the lower plate,

the first expansion piece is arranged on the second ear plate, the first ear plate is arranged at the expansion end of the first expansion piece, the first expansion piece drives the upper plate to lift up and down through the first ear plate,

the second extensible member is arranged on the rack, the second ear plate is arranged at the extensible end of the second extensible member, and the second extensible member drives the lower plate and the upper plate to ascend and descend through the second ear plate.

As a further technical proposal, the method also comprises

The first driving piece is arranged on the first lug plate and drives the second roller to rotate, the second roller drives the first roller to rotate through gear engagement,

and the second driving piece is arranged on the second lug plate and drives the third roller to rotate, and the third roller is driven to rotate by meshing of gears.

As a further technical proposal, the method also comprises

The slide way is arranged on the frame and positioned in the front of the guide device along the conveying direction of the conveying device,

the sliding block is arranged on the slideway in a sliding manner and is vertical to the conveying direction of the conveying device,

a fourth telescopic member arranged on the sliding block,

the fourth extensible member drives the flat plate to extend and retract in the direction perpendicular to the sliding direction of the sliding block, and the flat plate is located between the conveying rollers of the conveying device.

As a further technical proposal, the method also comprises

And the positioning sensor is arranged on the sliding block, is positioned in the middle of the flat plate and is used for positioning the position of the flat plate.

A light rail section steel rolling process based on a pre-bending cooling technology uses light rail section steel rolling equipment based on the pre-bending cooling technology and comprises the following steps

A. The guide device and the rough rolling mechanism are sequentially arranged on the rack along the conveying direction of the conveying device;

B. the conveying device drives the light rail section steel to be conveyed forwards and reach the guide device, the third telescopic piece drives the light rail section steel to move through the guide rolling shafts, and the guide rolling shafts on the two sides position and clamp the light rail section steel;

C. the conveying device continues to convey the light rail section steel, the light rail section steel enters the first rough rolling device, and the first rough rolling device performs rough rolling on the light rail for multiple times;

D. the first rough rolling device slides away, the second rough rolling device slides to be aligned with the light steel rail, the conveying device conveys the light steel rail into the second rough rolling device, the light steel rail is repeatedly rough rolled for the second time through the second rough rolling device, then the light steel rail is conveyed into the finish rolling device through the conveying device, the first rough rolling device and the second rough rolling device descend, the first rough rolling device is aligned with the next light rail section steel, and the next light rail section steel is roughly rolled.

As a further technical solution, the step C further comprises

Light-duty rail gets into first hole, second hole, third hole, fourth hole, fifth hole and sixth hole in proper order and carries out rough rolling, before getting into the second hole, and the fourth extensible member drives the flat board and carries out the turn-ups with light-duty rail, makes things convenient for light-duty rail to get into the second hole, when getting into the third hole, drives dull and stereotyped turn-ups rail once more through the fourth extensible member.

The working principle and the beneficial effects of the invention are as follows:

the light rail section steel belongs to rail steel, the rail steel is professional section steel, the light rail section steel needs to be subjected to two steps of rough rolling and finish rolling when being rolled, the rough rolling generally needs to be repeated for many times, and a rough rolled hole pattern structure is generally paved and unfolded, so that the floor area is large, and space utilization is not facilitated; light rail shaped steel enters rough rolling through a guide structure, the guide structure generally comprises two flat plates for guiding, high-temperature friction of the light rail shaped steel passes through the guide structure, and the guide structure is seriously abraded.

The guide structure is designed into roller guide, the guide plate is driven to stretch through the telescopic piece, the guide roller is arranged on the guide plate, the light rail section steel is in contact with the guide roller when passing through the guide device, and the light rail section steel is in rolling friction with the guide roller when being conveyed, so that the friction force is reduced, and the abrasion of the guide device is further reduced; the rough rolling hole type structure is divided into an upper layer and a lower layer, the first rough rolling device and the second rough rolling device are arranged on the rack in a sliding mode, and are vertically lifted through the first rough rolling device and the second rough rolling device to be respectively aligned with the light rail section steel, so that the light rail section steel is rolled for multiple times.

The guide device and the rough rolling mechanism are sequentially arranged on the rack along the conveying direction of the conveying device, the guide device comprises a guide plate third telescopic part, a guide plate and guide rolling shafts, the third telescopic part is provided with a plurality of guide plates, the third telescopic part is arranged on the rack and positioned on two sides of the conveying device, the guide plates are arranged at the telescopic ends of the third telescopic part, a clamping space is formed between the guide plates, the guide rolling shafts are rotatably arranged on the guide plates and positioned in the clamping space, the third telescopic part drives the light rail section steel to move through the guide rolling shafts and positions and clamps the light rail section steel, rolling friction exists between the light rail section steel and the guide rolling shafts during conveying, the abrasion of the guide rolling shafts is reduced, the required force during conveying after the light rail section steel is positioned and clamped is further reduced, and the energy consumption is reduced; the rough rolling mechanism is divided into a first rough rolling device and a second rough rolling device, the second rough rolling device is positioned below the first rough rolling device, the first rough rolling device and the second rough rolling device are lifted to finish multiple times of rolling the light rail section steel, and the rough rolling mechanism is vertically arranged, so that the occupied area is reduced, and space resources are reasonably utilized.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the roughing mechanism of the present invention;

FIG. 3 is a schematic view of the structure of the guiding device of the present invention;

FIG. 4 is a cross-sectional view of a guide structure of the present invention;

in the figure: 1. positioning sensor, 2, conveying device, 3, guiding device, 4, rough rolling mechanism, 5, third telescopic part, 6, guiding plate, 7, guiding rolling shaft, 8, first rough rolling device, 9, second rough rolling device, 10, upper plate, 11, first roller, 12, second roller, 13, lower plate, 14, third roller, 15, fourth roller, 16, first hole, 17, second hole, 18, third hole, 19, fourth hole, 20, fifth hole, 21, sixth hole, 22, first lug plate, 23, second lug plate, 24, first telescopic part, 25, second telescopic part, 26, first driving part, 27, second driving part, 28, slideway, 29, slide block, 30, fourth telescopic part, 31 and flat plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.

As shown in fig. 1 to 4, the present embodiment proposes

A light rail section steel rolling device based on a pre-bending cooling technology comprises a conveying device 2, a guiding device 3 and a rough rolling mechanism 4 which are all arranged on a rack, wherein the rough rolling mechanism 4 is located behind the guiding device 3 along the conveying direction of the conveying device 2, and the guiding device 3 comprises

A plurality of third telescopic pieces 5 which are arranged on the frame and are positioned at the two sides of the conveying device 2,

the guide plates 6 are arranged at the telescopic end of the third telescopic part 5, a clamping space is formed between the guide plates 6 positioned at the two sides of the conveying device 2, after the guide plates 6 move along with the telescopic end, the light rail section steel is clamped or loosened by the clamping space,

a guide roller 7 which is rotatably arranged on the guide plate 6 and is used for contacting and guiding the light rail section steel,

the roughing mechanism 4 comprises

A first rough rolling device 8 which is arranged on the frame in a sliding way and is positioned behind the guiding device 3 along the conveying direction of the conveying device 2,

and the second rough rolling device 9 is arranged on the rack in a sliding manner and is positioned at the bottom of the first rough rolling device 8, and the sliding directions of the first rough rolling device 8 and the second rough rolling device are vertical to the conveying direction of the conveying device 2.

The light rail section steel belongs to rail steel, the rail steel is professional section steel, the light rail section steel needs to be subjected to two steps of rough rolling and finish rolling when being rolled, the rough rolling generally needs to be repeated for many times, and a rough rolled hole pattern structure is generally paved and unfolded, so that the floor area is large, and the space utilization is not utilized; light rail shaped steel enters rough rolling through a guide structure, the guide structure generally comprises two flat plates for guiding, high-temperature friction of the light rail shaped steel passes through the guide structure, and the guide structure is seriously abraded.

The guiding structure is designed into roller guiding, the guide plate is driven to stretch through the telescopic piece, the guide roller is arranged on the guide plate, the light rail section steel is in contact with the guide roller when passing through the guiding device, rolling friction is adopted between the light rail section steel and the guide roller when the light rail section steel is conveyed, friction force is reduced, and abrasion of the guiding device is further reduced; the rough rolling hole type structure is divided into an upper layer and a lower layer, the first rough rolling device and the second rough rolling device are arranged on the rack in a sliding mode, and are vertically lifted through the first rough rolling device and the second rough rolling device to be respectively aligned with the light rail section steel, so that the light rail section steel is rolled for multiple times.

The guiding device 3 and the roughing mechanism 4 are sequentially arranged on the rack along the conveying direction of the conveying device 2, the guiding device comprises a third telescopic part 5 of a guiding plate, a guiding plate 6 and guiding rollers 7, the third telescopic part 5 is provided with a plurality of parts which are arranged on the rack and positioned on two sides of the conveying device 2, the guiding plate 6 is arranged at the telescopic end of the third telescopic part 5, a clamping space is formed between the guiding plates 6, the guiding rollers 7 are rotatably arranged on the guiding plate 6 and positioned in the clamping space, the third telescopic part 2 drives the light rail section steel to move through the guiding rollers 7 and positions and clamps the light rail section steel, rolling friction is formed between the light rail section steel and the guiding rollers 7 during conveying, the abrasion of the guiding rollers 7 is reduced, the force required during conveying after the light rail section steel is positioned and clamped is further reduced, and the energy consumption is reduced; the rough rolling mechanism 4 is divided into a first rough rolling device 8 and a second rough rolling device 9, the second rough rolling device 9 is located below the first rough rolling device 8 and is lifted up and down through the first rough rolling device 8 and the second rough rolling device 9, multiple times of rolling of the light rail section steel is completed, the rough rolling mechanism 4 is vertically arranged, occupied area is reduced, and space resources are reasonably utilized.

Further, the first rough rolling device 8 includes

An upper plate 10, which is arranged on the frame in a sliding way,

a first roller 11 rotatably provided on the upper plate 10,

and the second roller 12 is rotatably arranged on the upper plate 10 and is positioned below the first roller 11, and the first roller 11 and the second roller 12 form a first rough rolling hole.

In the embodiment, a first rough rolling mode of the first rough rolling device 8 is provided, specifically, the upper plate 10 is slidably arranged on the frame, the first roller 11 and the second roller 12 are rotatably arranged on the upper plate 10, the second roller 12 is located below the first roller 11, a first rough rolling hole is formed between the second roller 12 and the first roller 11, the first rough rolling hole is used for rough rolling of the light rail section steel, and the light rail section steel is subjected to rough rolling for the first time on the first rough rolling hole.

Further, the second rough rolling device 9 comprises

A lower plate 13, which is arranged on the frame in a sliding way and is positioned at the bottom of the upper plate 10,

a third roller 14 rotatably provided on the lower plate 13,

and the fourth roller 15 is rotatably arranged on the lower plate 13 and is positioned below the fourth roller 15, and the third roller 14 and the fourth roller 15 form a second rough rolling hole.

In this embodiment, a rough rolling mode of the second rough rolling device 9 is provided, specifically, the lower plate 13 is slidably disposed on the rack and located at the bottom of the upper plate 10, the third roller 14 and the fourth roller 15 are rotatably disposed on the lower plate 13, a second rough rolling hole is formed between the third roller 14 and the fourth roller 15, after the rough rolling of the first rough rolling hole is completed, the upper plate 10 drives the first roller 11 and the second roller 12 to ascend, the lower plate 13 drives the third roller 14 and the fourth roller 15 to ascend, the second rough rolling hole is in positioning fit with the light rail section steel to perform a second rough rolling, after the second rough rolling is completed, the light rail section steel is conveyed to the finish rolling device, the upper plate 10 and the lower plate 13 descend, and the first rough rolling hole is in positioning fit with the next light rail section steel to sequentially circulate to complete the rough rolling of the light rail section steel.

Further, the first rough rolling holes comprise a first hole 16, a second hole 17 and a third hole 18, the second rough rolling holes comprise a fourth hole 19, a fifth hole 20 and a sixth hole 21, the axis of symmetry of the second hole 17 is perpendicular to the axis of symmetry of the first hole 16, and the third hole 18 and the first hole 16 are parallel.

In the embodiment, in order to enable the light rail section steel to form a certain shape during rough rolling, the first rough rolling hole comprises a first hole 16, a second hole 17 and a third rough rolling hole 18, the second rough rolling hole comprises a fourth hole 19, a fifth hole 20 and a sixth hole 21, the light rail section steel sequentially passes through the first hole 16, the second hole 17, the third hole 18, the fourth hole 19, the fifth hole 20 and the sixth hole 21 and is formed step by step, the axis of the symmetry axis of the second hole 17 and the axis of the symmetry axis of the first hole 18 are perpendicular, and during rolling, the deformation condition caused by the matching problem between the first roller 11 and the second roller 12 during rolling along the same direction is avoided.

Further, also comprises

A plurality of first ear plates 22 respectively arranged at both sides of the upper plate 10,

a plurality of second ear plates 23 respectively arranged at both sides of the lower plate 13,

a first expansion piece 24 arranged on the second ear plate 23, the first ear plate 22 arranged on the expansion end of the first expansion piece 24, the first expansion piece 24 drives the upper plate 10 to move up and down through the first ear plate 22,

and the second telescopic piece 25 is arranged on the rack, the second ear plate 23 is arranged at the telescopic end of the second telescopic piece 25, and the second telescopic piece 25 drives the lower plate 13 and the upper plate 10 to ascend and descend through the second ear plate 23.

In the embodiment, a first rough rolling device 8 and a second rough rolling device 9 lifting mode are provided, specifically, first otic placode 22 has a plurality of, the setting is in upper plate 10 both sides, second otic placode 23 has a plurality of, the setting is in hypoplastron 13 both sides, first extensible member 24 sets up on second otic placode 23, first otic placode 22 sets up at the flexible end of first extensible member 24, first extensible member 24 drives upper plate 10 lift through first otic placode 22, second extensible member 25 sets up in the frame, second otic placode 23 sets up at the flexible end of second extensible member 25, second extensible member 25 drives hypoplastron 13 through second otic placode 23 and goes up and down, during hypoplastron 13 goes up and down, it goes up and down to drive upper plate 10 through first extensible member 24.

Further, also comprises

A first driving member 26, which is arranged on the first ear plate 22 and drives the second roller 12 to rotate, the second roller 12 drives the first roller 11 to rotate through gear engagement,

and the second driving piece 27 is arranged on the second lug plate 23 and drives the third roller 14 to rotate, and the third roller 14 drives the fourth roller 15 to rotate through gear engagement.

In this embodiment, in order to enable the first rough rolling device 8 and the second rough rolling device 9 to rotate separately without interfering with each other, specifically, the first driving member 26 is disposed on the first ear plate 22 to drive the second roller 12 to rotate, the second roller 12 drives the first roller 11 to rotate through gear engagement, the second driving member 27 is disposed on the second ear plate 23 to drive the third roller 14 to rotate, and the third roller 14 drives the fourth roller 15 to rotate through gear engagement; the first roughing device 8 and the second roughing device 9 have their own drives and do not interfere with each other.

Further, also comprises

A slide way 28 arranged on the frame and positioned in front of the guide device 3 along the conveying direction of the conveying device 2,

a slide block 29 which is arranged on the slide way 28 in a sliding way and is vertical to the conveying direction of the conveying device 2,

a fourth telescopic element 30, arranged on the slider 29,

and the flat plate 31 is arranged at the telescopic end of the fourth telescopic piece 30, the fourth telescopic piece 30 drives the flat plate 31 to stretch and retract in the sliding direction of the vertical sliding block 29, and the flat plate 31 is positioned between the conveying rollers of the conveying device 2.

In this embodiment, in order to turn up the light rail section steel, specifically, the slide 28 is disposed on the rack, and is located in front of the guide device 3 along the conveying direction of the conveying device 2, the slide block 29 slides on the slide 28, the fourth extensible member 30 is disposed on the slide block 29, the fourth extensible member 30 drives the flat plate 31 to move up and down in the vertical conveying direction, the slide block 29 drives the flat plate 31 to slide in the lifting direction of the vertical flat plate 31 through the fourth extensible member 30, when the light rail section steel needs to be turned up, the guide device 3 releases the light rail section steel, the width of the contact between the flat plate 31 and the bottom of the light rail section steel is less than half of the width of the light rail section steel, the fourth extensible member 30 drives the flat plate 31 to move up, the flat plate 31 pushes the light rail section steel to turn up, then the flat plate 31 moves down, and the light rail section steel is turned up.

Further, also comprises

And the positioning sensor 1 is arranged on the slide block 29 and positioned in the middle of the flat plate 31, and the position of the flat plate 31 is positioned by the positioning sensor 1.

In this embodiment, the positioning sensor 1 is disposed on the slider 29 and located in the middle of the flat plate 31, the positioning sensor 1 is used for detecting the light rail section steel, and when the light rail section steel is detected, the flat plate 31 stops sliding and starts to ascend to push the light rail section steel to complete flanging.

A light rail section steel rolling process based on a pre-bending cooling technology uses light rail section steel rolling equipment based on the pre-bending cooling technology and comprises the following steps

A. The guide device 3 and the rough rolling mechanism 4 are sequentially arranged on the frame along the conveying direction of the conveying device 2;

B. the conveying device 2 drives the light rail section steel to be conveyed forwards and reach the guide device 3, the third telescopic part 5 drives the light rail section steel to move through the guide rolling shafts 7, and the guide rolling shafts 7 on the two sides position and clamp the light rail section steel;

C. the conveying device 2 continues to convey the light rail section steel, the light rail section steel enters the first rough rolling device 8, and the first rough rolling device 8 roughly rolls the light rail for multiple times;

D. the first rough rolling device 8 ascends, the second rough rolling device 9 slides to be aligned with the light steel rail, the conveying device 2 conveys the light steel rail into the second rough rolling device 9, the light steel rail is repeatedly rough rolled for the second time through the second rough rolling device 9, then the light steel rail is conveyed into the finish rolling device through the conveying device 2, the first rough rolling device 8 and the second rough rolling device 9 descend, the first rough rolling device 8 is aligned with the next light rail section steel, and the next light rail section steel is roughly rolled.

As a further technical proposal, the step C also comprises

Light-duty rail gets into first hole 16, second hole 17, third hole 18, fourth hole 19, fifth hole 20 and sixth hole 21 in proper order and carries out rough rolling, before getting into second hole 17, fourth extensible member 30 drives dull and stereotyped 31 and carries out the turn-ups with light-duty rail, makes things convenient for light-duty rail to get into second hole 17, when getting into third hole 18, drives dull and stereotyped 31 turn-ups rail once more through fourth extensible member 30.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.