Flame cutting machine with stable pressing function

Abstract

The flame cutting machine with the stable pressing function comprises a trolley chassis, and four wheels are arranged on the two sides of the trolley chassis in total. The device further comprises two rails, and the wheels are used for reciprocating along the rails. A to-be-cut steel billet is arranged below the rail, and the extending direction of the rail is the same as that of the to-be-cut steel billet A synchronous air cylinder is arranged at the position, between the two rails, of the trolley chassis, a telescopic rod of the synchronous air cylinder is vertically downward and points to a steel billet to be cut, the telescopic rod is connected with a pressing device, the pressing device comprises a pressing rod connected with the free end of the telescopic rod, and the bottom end of the pressing rod is connected with a horizontally-arranged abrasion-resistant pressing block. A cutting gun is further arranged on the trolley chassis, and a cutting nozzle of the cutting gun points to the surface of the steel billet. The pressing device solves the problem that a cutting surface is not flat enough due to the fact that a bending arm of an existing pressing device of the flame cutting machine is too small in area and cannot completely compact steel billets.

Description

[Technical Field]

[0001] This utility model belongs to the field of flame cutting technology, specifically relating to a flame cutting machine with a stable clamping function. [Background Technology]

[0002] The flame cutting machine uses a synchronous clamping device to move in sync with the hot billet, and a control system to cut the billet using a cutting carriage. The flame cutting machine is one of the most important pieces of equipment in a continuous casting machine. Stable operation and a smooth, non-bent cut are key performance indicators for the flame cutting machine, crucial for providing the required hot billet for subsequent rolling.

[0003] Existing flame cutting machines use gear and chain drives for transmission, while the clamping device is a cylinder-driven bending arm for synchronization and movement. The bending arm is essentially an arc-shaped plate that clamps the steel billet using its curved surface. If the front and rear rollers of the steel billet have protrusions or deformations, the billet will fluctuate during its movement. During the cutting process, the bending arm, due to its small area, cannot fully clamp the billet. Combined with the imprecise gear and chain drive, this results in an uneven cut surface, affecting subsequent cutting quality and ultimately failing to meet mill requirements, leading to billet quality problems. [Utility Model Content]

[0004] The purpose of this invention is to provide a flame cutting machine with a stable clamping function to solve the problem that the bending arm area of ​​the existing flame cutting machine clamping device is too small, which cannot fully compact the steel billet and causes the cutting surface to be not flat.

[0005] The present invention adopts the following technical solution: a flame cutting machine with stable clamping function, including a trolley chassis, four wheels on both sides of the trolley chassis; and two tracks, each wheel being used to move back and forth along the tracks;

[0006] A steel billet to be cut is placed below the track, and the track extends in the same direction as the steel billet.

[0007] A synchronizing cylinder is installed on the chassis of the trolley, located between two tracks. The telescopic rod of the synchronizing cylinder is vertically downward and points towards the steel billet to be cut. The telescopic rod is connected to a clamping device, which includes a pressure rod connected to the free end of the telescopic rod. The bottom end of the pressure rod is connected to a horizontally set wear-resistant clamping block.

[0008] The chassis of the small car is also equipped with a cutting gun, with the cutting nozzle pointing towards the surface of the steel billet;

[0009] The trolley chassis is used to adjust the cutting position by moving along the track; the pressure bar and wear-resistant clamping block are used to press down and clamp the surface of the steel billet after the trolley chassis reaches the cutting position; the cutting gun is used to cut the steel billet after the wear-resistant clamping block clamps it; the pressure bar and wear-resistant clamping block are used to lift up after the cutting action is completed so that the steel billet to be cut can continue to move forward.

[0010] Furthermore, a crossbeam is provided on the chassis of the trolley, the extension direction of the crossbeam is perpendicular to the extension direction of the steel billet to be cut, and a cutting gun that can move along the crossbeam is provided on the crossbeam.

[0011] Furthermore, several fixed rollers are installed below the steel billet on the side of the cutting position closer to the material receiving direction, and telescopic rollers are installed on the side of the cutting position closer to the material discharging direction. The telescopic rollers are connected to a telescopic hydraulic cylinder.

[0012] The beneficial effects of this invention are as follows: By using a synchronous cylinder to drive the pressure rod and wear-resistant clamping block in a face-down clamping method, the steel billet is clamped, avoiding the problem of incomplete clamping due to billet undulations, thus ensuring a smooth cut surface. Simultaneously, replacing the gear chain drive with a gear-to-gear transmission solves the problem of insufficient precision during transport, improves the stability of the flame cutting machine, enhances the quality of the billet cross-section, and provides high-quality products for stable mill production. [Attached Image Description]

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the usage status from the perspective of AA.

[0015] Among them, 1. Synchronous cylinder, 2. Wear-resistant clamping block, 3. Pressure rod, 4. Track, 5. Cutting gun, 6. Steel billet to be cut, 7. Wheel, 8. Telescopic rod, 9. Crossbeam, 10. Fixed roller, 11. Telescopic roller, 12. Telescopic cylinder.

Detailed Implementation Methods

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0017] This utility model provides a flame cutting machine with a stable clamping function, such as Figure 1 and Figure 2 As shown, the device includes a trolley chassis with four wheels 7 on both sides; it also includes two tracks 4, and each wheel 7 is used for reciprocating movement along the tracks 4; the transmission device of the wheels 7 is a gear transmission device. A steel billet 6 to be cut is placed below the tracks 4, and the extension direction of the tracks 4 is the same as that of the steel billet 6 to be cut.

[0018] A synchronizing cylinder 1 is installed on the chassis of the trolley, positioned between the two tracks 4. The telescopic rod 8 of the synchronizing cylinder 1 extends vertically downwards and points towards the steel billet 6 to be cut. The telescopic rod 8 is connected to a clamping device, which includes a pressure rod 3 connected to the free end of the telescopic rod 8. The bottom end of the pressure rod 3 is connected to a horizontally positioned wear-resistant clamping block 2. The pressure rod 3 and the wear-resistant clamping block 2 ensure complete clamping with the steel billet 6, unaffected by the undulations and fluctuations during the movement of the steel billet.

[0019] The chassis of the trolley is also equipped with a cutting gun 5, with the cutting nozzle of the cutting gun 5 pointing towards the surface of the steel billet.

[0020] The trolley chassis is used to move along the track 4 to adjust the cutting position; the pressure bar 3 and the wear-resistant clamping block 2 are used to press down and clamp the surface of the steel billet 6 after the trolley chassis reaches the cutting position; the cutting gun 5 is used to cut the steel billet 6 after the wear-resistant clamping block 2 clamps it; the pressure bar 3 and the wear-resistant clamping block 2 are used to lift up after the cutting action is completed so that the steel billet 6 to be cut can continue to move forward.

[0021] In some embodiments, a crossbeam 9 is provided on the chassis of the trolley, the extension direction of the crossbeam 9 being perpendicular to the extension direction of the steel billet 6 to be cut, and a cutting gun 5 that can move along the crossbeam 9 is provided on the crossbeam 9. After the steel billet 6 reaches the cutting position, the cutting gun 5 cuts the steel billet 6 to be cut by moving along the crossbeam 9.

[0022] In some embodiments, a plurality of fixed rollers 10 are provided below the steel billet 6 on the side of the cutting position closer to the material receiving direction, and a telescopic roller 11 is provided on the side of the cutting position closer to the material discharging direction. The telescopic roller 11 is connected to a telescopic hydraulic cylinder 12. Before cutting, the telescopic roller 11 avoids the cutting position; after cutting, the telescopic roller 11 moves towards the cutting position and supports the end of the remaining uncut section of the steel billet 6, thus completing the continuous movement of the steel billet 6 and preparing for the next cutting.

[0023] The method of using the flame cutting machine with stable clamping function according to this utility model is as follows:

[0024] The steel billet 6 is transported by rollers. When the steel billet 6 reaches the cutting position, the synchronous cylinder 1 is activated. Under the action of the synchronous cylinder 1, the pressure rod 3 and the wear-resistant clamping block 2 press the steel billet 6 downwards, and the cutting gun 5 is ignited at the same time to complete the cutting of the steel billet. After the cutting is completed, the synchronous cylinder 1 is retracted, and the pressure rod 3 and the wear-resistant clamping block 2 are retracted at the same time. Before cutting, the telescopic roller 11 avoids the cutting position; after cutting, the telescopic roller 11 moves towards the cutting position and supports the end of the remaining uncut section of the steel billet 6, thus completing the continuous movement of the steel billet 6 and preparing for the next cutting.

Claims

1. A flame cutting machine with a stable clamping function, characterized in that, It includes a small car chassis with four wheels (7) on both sides; it also includes two tracks (4), and each of the wheels (7) is used to move back and forth along the tracks (4); A steel billet (6) to be cut is provided below the track (4), and the extension direction of the track (4) is the same as that of the steel billet (6). A synchronous cylinder (1) is installed on the chassis of the trolley between the two tracks (4). The telescopic rod (8) of the synchronous cylinder (1) is vertically downward and points towards the steel billet (6) to be cut. The telescopic rod (8) is connected to a clamping device. The clamping device includes a pressure rod (3) connected to the free end of the telescopic rod (8). The bottom end of the pressure rod (3) is connected to a horizontally arranged wear-resistant clamping block (2). The trolley chassis is also equipped with a cutting gun (5), and the cutting nozzle of the cutting gun (5) points to the surface of the steel billet; The trolley chassis is used to adjust the cutting position by translating along the track (4); the pressure rod (3) and the wear-resistant clamping block (2) are used to press down and clamp the surface of the steel billet (6) after the trolley chassis reaches the cutting position; the cutting gun (5) is used to cut the steel billet (6) after the wear-resistant clamping block (2) clamps it; the pressure rod (3) and the wear-resistant clamping block (2) are used to lift up after the cutting action is completed so that the steel billet (6) to be cut can continue to move forward.

2. A flame cutting machine with stable clamping function as described in claim 1, characterized in that, A crossbeam (9) is provided on the chassis of the trolley. The extension direction of the crossbeam (9) is perpendicular to the extension direction of the steel billet (6) to be cut. A cutting gun (5) that can move along the crossbeam (9) is provided on the crossbeam (9).

3. A flame cutting machine with a stable clamping function as described in claim 1 or 2, characterized in that, Below the steel billet (6), on the side of the cutting position closer to the material receiving direction, there are multiple fixed rollers (10), and on the side of the cutting position closer to the material discharging direction, there is a telescopic roller (11), and the telescopic roller (11) is connected to a telescopic oil cylinder (12).

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