A segmented shearing device capable of reducing damage to hot-rolled steel plates
By optimizing the design of the split shear table guard plate, support rollers, and roller conveyor, the problem of scratches caused by guard plate warping during hot-rolled steel plate production was solved, thus reducing surface damage to the steel plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG HANYE SPECIAL STEEL CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-19
AI Technical Summary
During the production of hot-rolled steel plates, the shearing table guard plates of the segmented shears are prone to warping and deformation due to long-term thermal expansion and mechanical stress. This causes the steel plates to rub against the guard plates during transportation, resulting in scratches and affecting product quality.
The design adopts a split shear plate design, with a deformation zone between adjacent small plates to allow for thermal expansion and reduce plate warping. Combined with the design of support rollers and roller conveyors, the steel plate conveying path is optimized, reducing the contact area between the plates and the steel plates.
It effectively reduces scratches on the steel plate caused by the shearing table guard plate, improves the surface quality of hot-rolled steel plates, and reduces the degree of damage during shearing.
Smart Images
Figure CN224372922U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of machining, and in particular to a segmentation shearing device that can reduce damage to hot-rolled steel plates. Background Technology
[0002] In the production process of hot-rolled steel plates, segment shears are used to cut steel plates into the required lengths. In the existing technology, during the steel cutting process, the edges of the shear table guard plate are prone to warping and deformation due to long-term thermal expansion and mechanical stress. This causes friction between the steel plate and the guard plate during transportation, scratching the bottom of the steel plate and affecting product quality. Utility Model Content
[0003] To address the shortcomings of existing technologies, this application provides a segmented shearing device that can reduce damage to hot-rolled steel plates. In this embodiment, a split shearing table guard plate is provided, with a deformation zone between the small guard plates that allows for thermal deformation. When two small guard plates expand due to heat, the gap between them allows for expansion and extension, thereby reducing the occurrence of arching and warping of the shearing table guard plates. This improves the edge warping of the shearing table guard plates and reduces the degree of scratching on the steel plate during shearing.
[0004] The above-mentioned objective of this application is achieved through the following technical solution:
[0005] A segmented shearing device that can reduce damage to hot-rolled steel plates includes a shearing machine, a feed roller group, and a discharge roller group, wherein the feed roller group and the discharge roller group are respectively arranged on the feed side and the discharge side of the shearing machine.
[0006] The shearing machine includes a shearing table and a machine body. The machine body is mounted on the shearing table. There is an operating space between the top plane of the shearing table and the machine body for steel plates to pass through and be cut. A shearing assembly that can move relative to the shearing table is mounted on the machine body. A shearing table guard plate is mounted on the top of the shearing table. The shearing table guard plate includes at least two small guard plates. The top planes of the at least two small guard plates are on the same plane. There is a deformation zone between two adjacent small guard plates for thermal deformation of the small guard plates.
[0007] Optionally, a number of rollers are provided on the side of the shear table near the feed side of the shearing machine. The central axes of the rollers are collinear and the central axes of the rollers are parallel to the top plane of the shear table. With the bottom of the shear table as the bottom reference, the height of the top cutting plane of the rollers is higher than the height of the top plane of the small guard plate.
[0008] Optionally, the feed roller assembly includes several feed roller tracks arranged in a linear array, wherein, with the bottom of the shear table as the bottom reference, the height of the tangent plane at the top of several feed roller tracks is higher than the height of the top plane of the small guard plate.
[0009] Optionally, the tangent plane at the top of the feed roller track of the nearest support roller in the feed roller group is coplanar with the tangent plane at the top of the support roller.
[0010] Optionally, the height of the top cutting plane of some of the feed roller tracks in the feed roller group gradually increases in the direction close to the shearing machine.
[0011] Optionally, the discharge roller assembly includes several linearly arrayed discharge roller tracks, wherein, with the bottom of the shear table as the bottom reference, the height of the tangent plane at the top of several discharge roller tracks is higher than the height of the top plane of the small guard plate.
[0012] Optionally, the tangent planes at the top of several discharge roller conveyors are coplanar.
[0013] Optionally, it also includes a clamping device that can move relative to the scissor table. The clamping device is located on the top of the scissor table and is mounted on the machine body. The clamping device includes a long steel plate and several press feet. The press feet are movably connected to the machine body, and the bottom of the press feet is fixed to the long steel plate. The bottom plane of the long steel plate is parallel to the top plane of the small guard plate.
[0014] Optionally, a U-shaped plate is also installed at the bottom of the long steel plate, with the long steel plate located inside the U-shaped plate.
[0015] Optionally, the top of the U-shaped plate is threaded with an installation strip. In the assembled state, the long steel plate is inside the U-shaped plate, and the installation strip is threaded to the U-shaped plate. The bottom of the installation strip is in close contact with the top of the long steel plate.
[0016] In summary, this application has the following beneficial technical effects:
[0017] This embodiment of the application uses a split shearing plate design, with a deformation zone between the small plates that allows for thermal deformation. When the two small plates expand due to heat, the gap between them allows for the expansion and extension of the small plates, thereby reducing the occurrence of arching and warping of the shearing plate. This improves the edge warping of the shearing plate and reduces the degree of scratching on the steel plate when it passes through it, thus reducing surface scratches during shearing. Attached Figure Description
[0018] Figure 1 This is a top view schematic diagram of one embodiment of this application;
[0019] Figure 2 This is a perspective view of one embodiment of this application;
[0020] Figure 3 This is a side view schematic diagram of one embodiment of this application.
[0021] Reference numerals: 10. Shearing machine; 11. Shearing table; 12. Shearing table guard plate; 13. Small guard plate; 14. Deformation zone; 15. Machine body; 16. Support roller;
[0022] 20. Clamping device; 21. Presser foot; 22. Long steel plate; 23. U-shaped plate; 24. Mounting strip;
[0023] 30. Feed roller assembly; 31. Feed roller conveyor;
[0024] 40. Discharge roller assembly; 41. Discharge roller track. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0026] To better understand the technical solutions presented in the embodiments of this application, a brief introduction to existing segmented shearing devices will be given first.
[0027] In the production process of hot-rolled steel plates, segment shears are used to cut steel plates into the required lengths. In the existing technology, during the steel cutting process, the edge of the shear table guard plate is prone to warping and deformation due to long-term thermal expansion and mechanical stress. This causes the steel plate to rub against the guard plate during the conveying process, scratching the bottom of the steel plate and affecting product quality.
[0028] Meanwhile, improper setting of the elevation of the roller conveyor in front of the shear table and the elevation of the swing roller conveyor can also cause the steel plate to come into contact with the shear table, exacerbating the problem of the shear table guard plate scratching the bottom of the steel plate during the transmission of the steel plate on the roller conveyor.
[0029] In addition, during the process of segmented shearing of steel plates, it is necessary to use clamping feet to hold the steel plates down to prevent them from moving during shearing. Because hot steel plates have low hardness, the individual clamping feet set above the segmented shearing table have small areas, which can cause the steel plates to be damaged by the clamping feet.
[0030] To solve the above-mentioned technical problems, this application provides a segmented shearing device that can reduce damage to hot-rolled steel plates, including a shearing machine 10, a feed roller group 30 and a discharge roller group 40, wherein the feed roller group 30 and the discharge roller group 40 are respectively arranged on the feed side and the discharge side of the shearing machine 10.
[0031] The shearing machine 10 includes a shearing table 11 and a machine body 15. The machine body 15 is mounted on the shearing table 11. There is an operating space between the top plane of the shearing table 11 and the machine body 15 for steel plates to pass through and be cut. A shearing assembly that can move relative to the shearing table 11 is mounted on the machine body 15. A shearing table guard plate 12 is mounted on the top of the shearing table 11. The shearing table guard plate 12 includes at least two small guard plates 13. The top planes of the at least two small guard plates 13 are on the same plane. There is a gap between two adjacent small guard plates 13. The aforementioned gap is a deformation zone 14 for the small guard plates 13 to undergo thermal deformation.
[0032] The following section will provide further details based on specific usage scenarios.
[0033] During use, the operator places the steel plate to be cut onto the feed roller group 30. The feed roller group 30 moves the steel plate to the feed port on the feed side of the shearing machine 10. The shearing component installed on the base of the shearing machine 10 moves downward toward the steel plate to cut the steel plate. Subsequently, the cut steel plate leaves the shearing machine 10 and enters the discharge roller group 40 under the pushing action of the subsequent steel plate, and is transferred to the next processing area.
[0034] During the above process, the steel plate will come into contact with the shear plate guard plate 12 of the shear table 11. Due to the high temperature of the hot-rolled steel plate, the shear plate guard plate 12 will expand due to heat. When the shear plate guard plate 12 is fixed on the shear table 11 with a limited number of fixed points, it will be restricted by the shape and position of the fixed points. The thermally expanded shear plate guard plate 12 will warp and deform, thereby scraping against the steel plate when the steel plate passes through, causing damage to the surface of the steel plate. In this embodiment, the shear plate guard plate 12 is set in a split manner, which includes at least two small guard plates 13. This embodiment uses the case of two small guard plates 13 as an example for illustration. Of course, the principle of setting multiple small guard plates 13 is the same as that of two small guard plates 13.
[0035] After the two small guard plates 13 expand due to heat, there is a gap between them, and they do not contact each other. When the two small guard plates 13 expand due to heat, the gap between them allows the small guard plates 13 to expand and extend, thereby reducing the occurrence of arching and warping of the shearing table guard plate 12. This improves the warping of the edges of the shearing table guard plate 12. In this way, when the steel plate passes through the steel, the degree of scratching on the steel plate by the shearing table guard plate 12 is reduced, and the surface scratches of the steel plate are reduced during shearing.
[0036] In summary, the embodiments of this application utilize a split shearing plate 12, with a deformation zone 14 between the small plates 13 for thermal deformation. When the two small plates 13 expand due to heat, the gap between them allows for the expansion and extension of the small plates 13, thereby reducing the occurrence of arching and warping of the shearing plate 12. This improves the edge warping of the shearing plate 12 and reduces the degree of scratching on the steel plate when it passes through the shearing plate, thus reducing surface scratches on the steel plate during shearing.
[0037] As a feasible specific implementation of the present application, a plurality of rollers 16 are provided on the side of the shear table 11 near the feed side of the shearing machine 10. The central axes of the plurality of rollers 16 are collinear and the central axes of the plurality of rollers 16 are parallel to the top plane of the shear table 11. With the bottom of the shear table 11 as the bottom reference, the height of the top cutting plane of the rollers 16 is higher than the height of the top plane of the small guard plate 13.
[0038] In a specific application scenario, by installing a drag wheel on the side of the shear table 11 near the feed side, with its top cutting plane higher than the top plane of the small guard plate 13, the steel plate will not touch the edge of the shear table guard plate 12 near the drag wheel when passing through. In this way, the upturning edge of the shear table guard plate 12 will not scratch the steel plate, further reducing the degree of scratching of the steel plate by the shear table guard plate 12 and reducing the surface scratches of the steel plate during shearing.
[0039] In one feasible implementation of this application embodiment, the feed roller group 30 includes a plurality of feed roller tracks 31 arranged in a linear array. With the bottom of the shear table 11 as the bottom reference, the height of the cutting plane at the top of the plurality of feed roller tracks 31 is higher than the height of the top plane of the small guard plate 13. Thus, before the steel plate enters the shearing machine 10, the height of the steel plate is already higher than the position of the top plane of the small guard plate 13, which further reduces the size of the possible contact area between the steel plate and the small guard plate 13, further reduces the degree of scratching of the steel plate by the shear table guard plate 12, and reduces the scratches on the surface of the steel plate during shearing.
[0040] In one feasible implementation of this application embodiment, the top tangent plane of the feed roller track 31 of the feed roller group 30 near the support roller 16 is coplanar with the top tangent plane of the support roller 16. Since the hot-rolled steel plate itself has good flexibility, it is easy to bend and deform when the hot-rolled steel plate is suspended for a long time. When the top tangent plane of the feed roller track 31 near the support roller 16 is coplanar with the top tangent plane of the support roller 16, the bending and deformation of the hot-rolled steel plate can be reduced, and the size of the possible contact area between the steel plate and the small guard plate 13 is further reduced, which further reduces the degree of scratching of the steel plate by the shearing table guard plate 12 and reduces the scratches on the surface of the steel plate during shearing.
[0041] In one feasible implementation of this application embodiment, the height of the top cutting plane of a plurality of feed roller tracks 31 in the feed roller group 30 gradually increases in the direction close to the shearing machine 10. By setting the feed roller group 30 with gradually increasing height, the steel plate can pass through the steel more smoothly, further reducing the degree of scratching of the steel plate by the shearing table guard plate 12 and reducing the scratches on the surface of the steel plate during shearing.
[0042] As a feasible specific implementation of this application, the discharge roller group 40 includes a plurality of linearly arrayed discharge roller tracks 41. With the bottom of the shear table 11 as the bottom reference, the height of the cutting plane at the top of the plurality of discharge roller tracks 41 is higher than the height of the top plane of the small guard plate 13. In this way, when the steel plate passes through, the steel plate directly enters the discharge roller group 40 after leaving the drag roller. The contact area between the steel plate and the edge of the shear table guard plate 12 near the discharge side of the shear machine 10 is smaller, thereby improving the situation of the edge of the shear table guard plate 12 lifting. When the steel plate passes through, the degree of scratching of the steel plate by the shear table guard plate 12 is reduced, and the scratches on the surface of the steel plate are reduced during shearing.
[0043] In one feasible implementation of this application embodiment, the cutting planes at the top of several discharge roller conveyors 41 are coplanar. In this way, the cut steel plate can leave the shearing machine 10 smoothly, further reducing the size of the possible contact area between the steel plate and the small guard plate 13, further mitigating the degree of scratching of the steel plate by the shearing table guard plate 12, and reducing the scratches on the surface of the steel plate during shearing.
[0044] As a feasible specific implementation of this application, it also includes a clamping device 20 that can move relative to the shear table 11. The clamping device 20 is located on the top of the shear table 11 and is mounted on the machine body 15. The clamping device 20 includes a long steel plate 22 and a plurality of pressure feet 21. The plurality of pressure feet 21 are movably connected to the machine body 15, and the bottom of the plurality of pressure feet 21 is fixed to the long steel plate 22. The bottom plane of the long steel plate 22 is parallel to the top plane of the small guard plate 13. By setting the long steel plate 22 at the bottom of the plurality of independent pressure feet 21, the pressure of the clamping device 20 on the steel plate per unit area is reduced, thereby further reducing the surface scratches of the steel plate during shearing.
[0045] In some possible implementations of the embodiments of this application, a U-shaped plate 23 is also installed at the bottom of the long steel plate 22, with the long steel plate 22 located inside the U-shaped plate 23. The outer edge of the U-shaped plate 23 is rounded. In this way, when the steel plate passes through steel or is under pressure, the U-shaped plate 23 can further reduce surface scratches on the steel plate during shearing. An installation strip 24 is threadedly connected to the top of the U-shaped plate 23. In the assembled state, the long steel plate 22 is located inside the U-shaped plate 23, and the installation strip 24 is threadedly connected to the U-shaped plate 23. The bottom of the installation strip 24 is in close contact with the top of the long steel plate 22.
[0046] It should be noted that, regardless of whether the technical solution of the embodiments of this application is adopted, the steel plate needs to be corrected in shape after shearing in order to make the steel plate flat.
[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A segmented shearing device for reducing damage to hot-rolled steel plates, characterized in that, It includes a shearing machine (10), a feed roller group (30) and a discharge roller group (40), with the feed roller group (30) and the discharge roller group (40) respectively located on the feed side and the discharge side of the shearing machine (10); The shearing machine (10) includes a shearing table (11) and a machine body (15). The machine body (15) is mounted on the shearing table (11). There is an operating space between the top plane of the shearing table (11) and the machine body (15) for steel plates to pass through and be cut. A shearing assembly that can move relative to the shearing table (11) is mounted on the machine body (15). A shearing table guard plate (12) is mounted on the top of the shearing table (11). The shearing table guard plate (12) includes at least two small guard plates (13). The top planes of the at least two small guard plates (13) are on the same plane. There is a deformation zone (14) between two adjacent small guard plates (13) for thermal deformation of the small guard plates (13).
2. The segmented shear device for reducing damage to a hot rolled steel sheet of claim 1, wherein, A number of rollers (16) are provided on the side of the shear table (11) near the feed side of the shear machine (10). The central axes of the rollers (16) are collinear and the central axes of the rollers (16) are parallel to the top plane of the shear table (11). With the bottom of the shear table (11) as the bottom reference, the height of the top cutting plane of the rollers (16) is higher than the height of the top plane of the small guard plate (13).
3. The segmented shear device of claim 2, wherein, The feed roller group (30) includes several feed roller channels (31) arranged in a linear array. With the bottom of the shear table (11) as the bottom reference, the height of the cutting plane at the top of several feed roller channels (31) is higher than the height of the top plane of the small guard plate (13).
4. A segmentation shearing device for reducing damage to hot-rolled steel plates according to claim 3, characterized in that, The top tangent plane of the feed roller track (31) of the feed roller group (30) close to the support roller (16) is coplanar with the top tangent plane of the support roller (16).
5. The segmented shear device of claim 4, wherein, The height of the top cutting plane of several feed roller tracks (31) in the feed roller group (30) gradually increases in the direction close to the shearing machine (10).
6. The segmented shear device of claim 2, wherein, The discharge roller group (40) includes several linearly arrayed discharge roller tracks (41). With the bottom of the shear table (11) as the bottom reference, the height of the cutting plane at the top of several discharge roller tracks (41) is higher than the height of the top plane of the small guard plate (13).
7. The segmented shear device of claim 6, wherein, The tangent planes at the top of several discharge roller conveyors (41) are coplanar.
8. The segmented shear device of claim 2, wherein, It also includes a clamping device (20) that can move relative to the scissor table (11). The clamping device (20) is located on the top of the scissor table (11) and is mounted on the machine body (15). The clamping device (20) includes a long steel plate (22) and several press feet (21). The press feet (21) are movably connected to the machine body (15). The bottom of the press feet (21) is fixed to the long steel plate (22). The bottom plane of the long steel plate (22) is parallel to the top plane of the small guard plate (13).
9. The segmented shear apparatus of claim 2, wherein, A U-shaped plate (23) is also installed at the bottom of the long steel plate (22), with the long steel plate (22) located inside the U-shaped plate (23).
10. The segmented shear device of claim 9, wherein, The top of the U-shaped plate (23) is threaded with an installation strip (24). In the assembled state, the long steel plate (22) is inside the U-shaped plate (23), and the installation strip (24) is threaded with the U-shaped plate (23). The bottom of the installation strip (24) is in close contact with the top of the long steel plate (22).