Continuous casting billet straightening device

Abstract

The utility model belongs to the technical field of steelmaking production, and particularly discloses a continuous casting billet straightening device which comprises a conveying roller way and a lifting table, the lifting table is arranged on the side face of the conveying roller way, a pneumatic cylinder is fixedly connected to a conveying roller, and the lifting table comprises a table top, a frame, a base and a lifting fork arm used for controlling the height of the table top. A first installation seat is fixedly connected to the base, a first hydraulic cylinder is hinged to the first installation seat, the telescopic end of the first hydraulic cylinder is connected with a lifting fork arm, the lifting fork arm is connected to the upper end of the base, the frame is connected to the upper end of the lifting fork arm, and the table top is hinged to the frame. The hot casting blank and the bent cold casting blank which are cut off are stacked through the lifting table, the hot casting blank is used for heating the bent cold casting blank, and the bent casting blank is straightened through the weight of the casting blank.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking production technology, specifically to a straightening device for continuously cast billets. Background Technology

[0002] During the subsequent slow cooling and transportation process, continuously cast billets produced in steel plants are prone to bending due to uneven heat transfer between their upper and lower surfaces. Bending billets cannot be transported via roller conveyors and cannot smoothly enter the heating furnace, severely impacting on-site production rhythm and efficiency. A common method is manual secondary cutting to remove severely bent portions, sending the properly shaped parts to subsequent rolling processes. However, this method suffers from low efficiency, high labor intensity, and significant cutting losses.

[0003] CN104801574A discloses a device for straightening bent continuously cast billets. This device places the lifting hook of a crane on a lifting lug and moves it to the side of the bent continuously cast billet stack. The bent billet is then lifted to the center of a rectangular frame, with the bending direction facing away from the direction of the hydraulic jacks. The hydraulic jacks then apply pressure to straighten the billet to the required degree of bending, causing it to transition from elastic deformation to plastic deformation, thus restoring the billet to a straight state. This device is only suitable for straightening square billets and cannot be used on slabs. Utility Model Content

[0004] The purpose of this invention is to provide a continuous casting billet straightening device to solve the problem that existing billet straightening devices cannot straighten slabs.

[0005] To achieve the above objectives, the basic solution provided by this utility model is as follows: a continuous casting billet straightening device, including a conveyor roller and a lifting table, wherein the lifting table is disposed on the side of the conveyor roller, a pneumatic cylinder is fixedly connected to the conveyor roller, the lifting table includes a tabletop, a frame, a base and a lifting fork arm for controlling the height of the tabletop, a first mounting seat is fixedly connected to the base, a first hydraulic cylinder is hinged to the first mounting seat, the telescopic end of the first hydraulic cylinder is connected to the lifting fork arm, the lifting fork arm is connected to the upper end of the base, the frame is connected to the upper end of the lifting fork arm, and the tabletop is hinged to the frame.

[0006] The principle and beneficial effects of this utility model are as follows: The conveyor roller is installed after the cutting process of the billet continuous casting system. At this time, the billet has solidified and hardened, and cooled to 600-800℃, which can be used for heating and bending cold billets. Since compressed air can be quickly filled and discharged from the cylinder, the piston of the pneumatic cylinder can move quickly, thereby achieving rapid action. The hot billet on the conveyor roller can be quickly pushed down onto the table without stopping the operation of the conveyor roller. The hydraulic cylinder has a higher load capacity. The lifting fork arm is driven by the hydraulic cylinder to realize the lowering or raising of the lifting table, so that the table can complete the stacking of billets of different heights. The table rotates around the edge of the frame. The table rotates at a certain angle to facilitate the falling of the billet.

[0007] Option 2, a preferred embodiment of the basic option, includes a first fork arm and a second fork arm. A first mounting plate and a first slide rail are welded to the base, and a second mounting plate and a second slide rail are welded to the frame. The rotating end of the first fork arm is hinged to the first mounting plate, and the rotating end of the second fork arm is hinged to the second mounting plate. Slide rods are provided at the ends of both the first and second fork arms. The slide rods of the first fork arm and the second slide rail are slidably connected, and the slide rods of the second fork arm are slidably connected to the first slide rail. A support rod is fixedly connected to the first fork arm, and the support rod is hinged to the telescopic end of the first hydraulic cylinder. The first and second fork arms are also hinged. The first and second fork arms form a lever, amplifying the smaller force provided by the power unit, thereby enabling the lifting of heavier loads and maintaining a triangular structure throughout the lifting process. This ensures good stability and balance of the entire mechanism during lifting, preventing tilting or swaying.

[0008] Option 3, a preferred embodiment of the basic design, involves welding a second mounting base to the frame, hinged to a second hydraulic cylinder, and welding a connecting plate to the underside of the tabletop. The telescopic end of the second hydraulic cylinder is hinged to the connecting plate. The tabletop is rotated by the hydraulic cylinder, ensuring a stable operation without requiring operator proximity.

[0009] Option 4, a preferred embodiment of the basic option, features a stacking worktable on the side of the frame, with baffles welded to the side of the stacking worktable. The tabletop is flipped to transfer the billet to the stacking worktable, which ensures the bottom surface of the stacking worktable is level, preventing stress bending of the billet during cooling. The baffles prevent the billet from falling off the stacking worktable surface under gravity and also assist in neatly stacking the billets.

[0010] Option 5, a preferred embodiment of the basic option, involves a third hydraulic cylinder fixedly connected within the frame, with a push plate fixedly connected to the telescopic end of the third hydraulic cylinder. The third hydraulic cylinder rises and falls with the tabletop, applying pressure to the billets after each billet is stacked. The interaction between the push plate and the stop rod ensures the billets are stacked neatly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a continuous casting billet straightening device according to the present invention;

[0012] Figure 2 This is a top view of a continuous casting billet straightening device according to this utility model;

[0013] Figure 3 yes Figure 2 Sectional view at point A in the middle. Detailed Implementation

[0014] The present invention will be further described in detail below through specific embodiments:

[0015] The reference numerals in the accompanying drawings include: 1-Conveyor roller, 2-Lifting table, 3-Pneumatic cylinder, 4-Tabletop, 5-Frame, 6-Base, 7-Lifting fork arm, 8-First fork arm, 9-Second fork arm, 10-First mounting plate, 11-First slide rail, 12-Second mounting plate, 13-Second slide rail, 14-First mounting seat, 15-First hydraulic cylinder, 16-Second mounting seat, 17-Second hydraulic cylinder, 18-Connecting plate, 19-Stacking workbench, 20-Stop bar, 21-Third hydraulic cylinder, 22-Push plate, 23-Bent cold casting billet, 24-Hot casting billet, 25-Slide bar.

[0016] Example

[0017] like Figures 1 to 3As shown: A continuous casting billet straightening device includes a conveyor roller conveyor 1 and a lifting table 2. The lifting table 2 is located on the side of the conveyor roller conveyor 1. A pneumatic cylinder 3 is fixedly connected to the conveyor roller. The lifting table 2 includes a tabletop 4, a frame 5, a base 6, and lifting fork arms 7. A first mounting seat 14 is fixedly connected to the base 6. A first hydraulic cylinder 15 is hinged to the first mounting seat 14. The lifting fork arms 7 include a first fork arm 8 and a second fork arm 9. A first mounting plate 10 and a first slide rail 11 are welded to the base 6. A second mounting plate 12 and a second slide rail 13 are welded to the frame 5. The rotating end of the first fork arm 8 is hinged to the first mounting plate 10, and the rotating end of the second fork arm 9 is hinged to the second mounting plate 12. Slide rods are provided at the ends of the first fork arm 8 and the second fork arm 9. The slide rod of the first fork arm 8 is slidably connected to the second slide rail 13, the slide rod of the second fork arm 9 is slidably connected to the first slide rail 11, a support rod is fixedly connected to the first fork arm 8, the support rod is hinged to the telescopic end of the first hydraulic cylinder 15, the first fork arm 8 is hinged to the second fork arm 9, the tabletop 4 is hinged to the frame 5, a second mounting seat 16 is welded to the frame 5, a second hydraulic cylinder 17 is hinged to the second mounting seat 16, a connecting plate 18 is welded to the lower surface of the tabletop 4, the telescopic end of the second hydraulic cylinder 17 is hinged to the connecting plate 18, a stacking workbench 19 is provided on the side of the frame 5, a stop bar 20 is welded to the side of the stacking workbench 19, a third hydraulic cylinder 21 is fixedly connected inside the frame 5, and a push plate 22 is fixedly connected to the telescopic end of the third hydraulic cylinder 21.

[0018] The implementation method of this embodiment is as follows: When a bent cold casting billet 23 needs to be straightened, the first hydraulic cylinder 15 is activated to drive the first fork arm 8, the first fork arm 8 drives the second fork arm 9 to be lifted, and the frame 5 is raised by the lifting fork arm 7 so that the tabletop 4 is flush with the conveyor roller 1. The pneumatic cylinder 3 is activated to push a section of the cut hot casting billet 24 onto the tabletop 4, and then the tabletop 4 is raised and lowered so that the tabletop 4 is flush with the stacking worktable 19. The second hydraulic cylinder 17 is activated to flip the tabletop 4 so that the hot casting billet 24 slides onto the stacking worktable 19.

[0019] The bent cold casting billet 23 is transported to the hot casting billet 24 by a crane and stacked.

[0020] After repeating the first step to push the hot-cast billet 24 onto the table 4, raise and lower the table 4 so that the table is flush with the top billet. Then, activate the second hydraulic cylinder 17 to flip the table and stack the hot-cast billet 24 onto the bent cold-cast billet 23. The bent cold-cast billet 23 is heated by the upper and lower hot-cast billets 24, and straightened by the gravity of the upper hot-cast billet 24. At this time, activate the third hydraulic cylinder 21 to push the push plate 22 so that the lower hot-cast billet 24 is aligned with the bent cold-cast billet 23. Repeat the above operation 2-4 times. Then, use a crane to lift a flat cold-cast billet and stack it onto the hot-cast billet 24 to prevent the top hot-cast billet 24 from bending due to uneven cooling.

[0021] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A straightening device for continuously cast billets, characterized in that, The system includes a conveyor roller (1) and a lifting table (2). The lifting table (2) is located on the side of the conveyor roller (1). A pneumatic cylinder (3) is fixedly connected to the conveyor roller (1). The lifting table (2) includes a tabletop (4), a frame (5), a base (6), and a lifting fork arm (7) for controlling the height of the tabletop (4). A first mounting seat (14) is fixedly connected to the base (6). A first hydraulic cylinder (15) is hinged to the first mounting seat (14). The telescopic end of the first hydraulic cylinder (15) is connected to the lifting fork arm (7). The lifting fork arm (7) is connected to the upper end of the base (6). The frame (5) is connected to the upper end of the lifting fork arm (7). The tabletop (4) is hinged to the frame (5).

2. The continuous casting billet straightening device according to claim 1, characterized in that... The lifting fork arm (7) includes a first fork arm (8) and a second fork arm (9). A first mounting plate (10) and a first slide rail (11) are welded on the base (6). A second mounting plate (12) and a second slide rail (13) are welded on the frame (5). The rotating end of the first fork arm (8) is hinged to the first mounting plate (10). The rotating end of the second fork arm (9) is hinged to the second mounting plate (12). The ends of the first fork arm (8) and the second fork arm (9) are provided with slide rods (25). The slide rods (25) of the first fork arm (8) and the second slide rail (13) are slidably connected. The slide rods (25) of the second fork arm (9) are slidably connected to the first slide rail (11). A support rod is fixedly connected to the first fork arm (8). The support rod is hinged to the telescopic end of the first hydraulic cylinder (15). The first fork arm (8) and the second fork arm (9) are hinged.

3. The continuous casting billet straightening device according to claim 1, characterized in that, A second mounting base (16) is welded onto the frame (5), and a second hydraulic cylinder (17) is hinged to the second mounting base (16). A connecting plate (18) is welded to the lower surface of the tabletop (4), and the telescopic end of the second hydraulic cylinder (17) is hinged to the connecting plate (18).

4. The continuous casting billet straightening device according to claim 1, characterized in that, The frame (5) has a stacking workbench (19) on its side, and a stop bar (20) is welded to the side of the stacking workbench (19).

5. A straightening device for continuously cast billets according to claim 4, characterized in that... A third hydraulic cylinder (21) is fixedly connected inside the frame (5), and a push plate (22) is fixedly connected to the telescopic end of the third hydraulic cylinder (21).

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