A strand cutting device

Abstract

The utility model relates to cutting equipment field, concretely relates to a casting blank cutting device, sets up above continuous casting machine roller bed, including support platform, the upper end of support platform is slidly arranged with the fire cutting car, is provided with the moving mechanism between fire cutting car and support platform, is provided with the lifting mechanism on fire cutting car, the lifting mechanism is connected with fire cutting mechanism, is provided with the sliding slot on support platform, fire cutting mechanism extends to the below of support platform from the sliding slot, is provided with the iron powder tank and iron powder conveying unit on support platform, iron powder conveying unit iron powder tank connects, and iron powder conveying unit is provided with the hose connected with fire cutting mechanism. The utility model has can adjust the distance of fire cutting mechanism and casting blank, makes fire cutting gun can reach the best cutting effect, improves casting blank section quality.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment, specifically to a billet cutting device. Background Technology

[0002] Flame cutting of steel billets in continuous casting machines is a key process in steel production, directly affecting product quality and production efficiency. The working principle of flame cutting is as follows: After the flame cutting torch is ignited, the preheating flame heats the metal surface at the starting point to its ignition point. Then, combustion reaction begins in the cutting oxygen and propagates downwards. At the same time, the kinetic energy of the cutting oxygen blows away the molten slag, forming a continuous cut. To ensure a good flame cutting effect, the distance between the flame cutting torch and the billet is very important. Too much distance will affect the cutting effect. Continuous casting machines can usually produce billets of multiple sizes. Therefore, it is necessary to design a billet cutting device that can adjust the distance between the flame cutting torch and the billet according to the billet size. Summary of the Invention

[0003] The purpose of this invention is to provide a billet cutting device that can adjust the distance between the flame cutting torch and the billet according to the billet size, thereby ensuring a good cutting effect.

[0004] The technical solution adopted is as follows:

[0005] A billet cutting device is installed above the roller conveyor of a continuous casting machine. It includes a support platform, a cutting car is slidably mounted on the upper end of the support platform, a moving mechanism is provided between the cutting car and the support platform, a lifting mechanism is provided on the cutting car, the lifting mechanism is connected to the cutting mechanism, a chute is provided on the support platform, the cutting mechanism extends from the chute to the bottom of the support platform, an iron powder tank and an iron powder conveying unit are provided on the support platform, the iron powder conveying unit is connected to the iron powder tank, and the iron powder conveying unit is provided with a flexible hose connected to the cutting mechanism.

[0006] Preferably, the moving mechanism includes a drive motor, which is fixedly mounted on the fire-cutting car. The drive motor is equipped with gears, and a rack that meshes with the gears is provided on the support platform.

[0007] Preferably, the lifting mechanism includes a vertically extending hydraulic telescopic rod, and the upper end of the hydraulic telescopic rod is provided with a crossbeam connected to the fire-cutting mechanism.

[0008] Preferably, the upper end of the support platform is provided with two guide rails, and multiple V-shaped wheels are rotatably provided on both sides of the fire cutting car, with the V-shaped wheels slidingly arranged on the guide rails on the same side.

[0009] Preferably, a high-temperature laser ranging device is provided on the lower end face of the support platform.

[0010] Compared to existing technologies, the advantages are:

[0011] 1. Adjust the distance between the flame cutting mechanism and the billet according to the size of the billet so that the flame cutting torch can achieve the best cutting effect. The flame cutting mechanism mixes and sprays iron powder, which has the advantages of lowering the melting point and improving the cutting quality.

[0012] 2. The high-temperature laser rangefinder is used to monitor the distance between the billet and the support platform, and adjust the height of the fire-cutting mechanism according to the distance information. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a billet cutting device according to the present invention.

[0014] Figure 2 This is a front view schematic diagram of a billet cutting device according to this utility model.

[0015] Figure 3 This is a top view schematic diagram of a billet cutting device according to this utility model.

[0016] In the diagram: 1. Support platform; 2. Roller conveyor; 3. Fire cutting car; 4. Guide rail; 5. V-wheel; 6. Drive motor; 7. Gear; 8. Rack; 9. Hydraulic telescopic rod; 10. Iron powder tank; 11. Hoses; 12. High-temperature laser rangefinder; 13. Controller; 14. Fire cutting mechanism; 15. Slide chute. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:

[0018] Example 1: A billet cutting device includes a support platform 1, which is set above the roller table 2 of a continuous casting machine. The billet moves along the roller table 2 of the continuous casting machine. A hot cutting car 3 is slidably set on the upper end of the support platform 1. The hot cutting car 3 slides in the horizontal direction and the moving direction of the hot cutting car 3 is perpendicular to the moving direction of the billet. A moving mechanism is set between the hot cutting car 3 and the support platform 1. The moving mechanism provides power to the hot cutting car 3, so that the hot cutting car 3 moves back and forth above the support platform 1.

[0019] The fire-cutting car 3 is equipped with a lifting mechanism, which is connected to the fire-cutting mechanism 14. The lower end of the fire-cutting mechanism 14 is a nozzle. The support platform 1 is equipped with a slide 15. The fire-cutting mechanism 14 extends from the slide 15 to the bottom of the support platform 1. The lifting mechanism controls the fire-cutting mechanism 14 to move in the vertical direction.

[0020] The support platform 1 is equipped with an iron powder tank 10 and an iron powder conveying unit. The iron powder conveying unit is connected to the iron powder tank 10, and the iron powder conveying unit is equipped with a flexible hose 11 connected to the flame cutting mechanism 14. When cutting the billet, the iron powder conveying unit conveys the iron powder in the iron powder tank 10 to the flame cutting mechanism 14, which has the advantages of reducing the melting point and improving the cutting quality. The support platform 1 is equipped with a controller 13, which is connected to both the lifting mechanism and the moving mechanism.

[0021] Example 2: A billet cutting device includes a support platform 1, which is set above the roller conveyor 2 of a continuous casting machine. The billet moves along the roller conveyor 2 of the continuous casting machine. A cutting car 3 is slidably set on the upper end of the support platform 1. The cutting car 3 slides in the horizontal direction and the direction of movement of the cutting car 3 is perpendicular to the direction of movement of the billet. Two guide rails 4 are set on the upper end of the support platform 1. Multiple V-shaped wheels 5 are rotatably set on both sides of the cutting car 3. The V-shaped wheels 5 are slidably set on the guide rails 4 on the same side to make the movement of the cutting car 3 more stable.

[0022] A moving mechanism is provided between the fire-cutting car 3 and the support platform 1. The moving mechanism includes a drive motor 6, which is fixedly mounted on the fire-cutting car 3. The drive motor 6 is equipped with a gear 7, and the support platform 1 is equipped with a rack 8 that meshes with the gear 7. The drive motor 6 drives the gear 7 to rotate, and the movement of the fire-cutting car 3 is realized through the meshing of the gear 7 and the rack 8. The moving mechanism provides power to the fire-cutting car 3, so that the fire-cutting car 3 moves back and forth above the support platform 1.

[0023] The fire-cutting car 3 is equipped with a lifting mechanism, which is connected to the fire-cutting mechanism 14. The lower end of the fire-cutting mechanism 14 is a nozzle. The support platform 1 is equipped with a slide 15. The fire-cutting mechanism 14 extends from the slide 15 to the bottom of the support platform 1. The lifting mechanism controls the fire-cutting mechanism 14 to move in the vertical direction. The lifting mechanism includes a vertically extending hydraulic telescopic rod 9. The upper end of the hydraulic telescopic rod 9 is equipped with a crossbeam connected to the fire-cutting mechanism 14. The hydraulic telescopic rod 9 is connected to an external hydraulic station and hydraulic control system.

[0024] The support platform 1 is equipped with an iron powder tank 10 and an iron powder conveying unit. The iron powder conveying unit is connected to the iron powder tank 10, and the iron powder conveying unit is equipped with a flexible hose 11 connected to the flame cutting mechanism 14. When cutting the billet, the iron powder conveying unit conveys the iron powder in the iron powder tank 10 to the flame cutting mechanism 14, which has the advantages of reducing the melting point and improving the cutting quality. The lower end face of the support platform 1 is equipped with a high-temperature laser rangefinder 12. The high-temperature laser rangefinder 12 is used to monitor the distance between the billet and the support platform 1 and adjust the height of the flame cutting mechanism 14 according to the distance information. The support platform 1 is equipped with a controller 13, which is connected to the high-temperature laser rangefinder 12, the lifting mechanism, and the moving mechanism.

[0025] The working principle is as follows:

[0026] The billet is conveyed along the roller conveyor 2 of the continuous casting machine to the bottom of the support platform 1. The pneumatic clamp of the continuous casting machine holds the billet and positions it. The moving mechanism moves the cutting car 3 to the end of the chute 15. The high-temperature Jinan Iron and Steel distance measuring device measures the distance between the support platform 1 and the billet and transmits the data to the controller 13. The controller 13 controls the lifting mechanism to adjust the height difference between the cutting mechanism 14 and the billet. After adjusting to the optimal height difference, the cutting mechanism 14 is ignited. At the same time, the iron powder conveying unit conveys the iron powder in the iron powder tank 10 to the cutting mechanism 14. The moving mechanism drives the cutting car 3 to move and cut the billet. After the cutting is completed, the cutting mechanism 14 is extinguished and the moving mechanism drives the cutting car 3 to reset.

[0027] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A billet cutting device, disposed above the roller conveyor (2) of a continuous casting machine, characterized in that: The system includes a support platform (1), a fire-cutting car (3) is slidably mounted on the upper end of the support platform (1), a moving mechanism is provided between the fire-cutting car (3) and the support platform (1), a lifting mechanism is provided on the fire-cutting car (3), the lifting mechanism is connected to the fire-cutting mechanism (14), a chute (15) is provided on the support platform (1), the fire-cutting mechanism (14) extends from the chute (15) to the bottom of the support platform (1), an iron powder tank (10) and an iron powder conveying unit are provided on the support platform (1), the iron powder conveying unit is connected to the iron powder tank (10), and the iron powder conveying unit is provided with a hose (11) connected to the fire-cutting mechanism (14).

2. The billet cutting device as described in claim 1, characterized in that: The moving mechanism includes a drive motor (6), which is fixedly mounted on the fire cutting car (3). The drive motor (6) is equipped with a gear (7), and a rack (8) that meshes with the gear (7) is mounted on the support platform (1).

3. The billet cutting device as described in claim 1, characterized in that: The lifting mechanism includes a vertically extending hydraulic telescopic rod (9), and the upper end of the hydraulic telescopic rod (9) is provided with a crossbeam connected to the fire cutting mechanism (14).

4. The billet cutting device as described in claim 1, characterized in that: The upper end of the support platform (1) is provided with two guide rails (4), and multiple V-shaped wheels (5) are rotatably provided on both sides of the fire cutting car (3). The V-shaped wheels (5) are slidably arranged on the guide rails (4) on the same side.

5. The billet cutting device as described in claim 1, characterized in that: A high-temperature laser ranging device (12) is provided on the lower end face of the support platform (1).

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