Flame cutting machine for slab continuous casting machine

Abstract

The utility model relates to a flame cutting machine for a slab continuous casting machine, which comprises two trolley tracks which are arranged in parallel at an interval and used for being erected above a blank discharging roller way of the slab continuous casting machine, and a connecting beam is connected between the two trolley tracks; the measuring roller is arranged on the connecting beam and is used for measuring the length of the continuous casting billet on the billet ejection roller way; the two sets of casting blank centering devices are oppositely arranged, can telescopically move in the length direction perpendicular to the trolley track and can abut against the two sides of the continuous casting blank correspondingly; and the cutting trolley is located between the two trolley tracks, the two ends of the cutting trolley are arranged on the two trolley tracks in a sliding mode, and the cutting trolley is used for cutting the continuous casting billets on the billet discharging roller way. According to the utility model, the continuous casting billet can be kept centered at the stop position, and the cutting rate of the continuous casting billet is improved.

Description

Technical Field

[0001] The utility model relates to the field of iron and steel metallurgy, in particular to a fire cutting machine used for a slab continuous casting machine. Background Art

[0002] The control of the billet cutting rate of the slab continuous casting machine is a key link in controlling the billet quality. When the billet stops at the stop position of the fire cutting machine, it will always be affected by factors such as friction and installation error, causing the continuous casting billet to shift at the stop position. This will cause the cut billet to be not a regular rectangle, reducing the continuous casting billet cutting rate. Utility Model Content

[0003] The utility model aims to provide a fire cutting machine for a slab continuous casting machine, which can keep the continuous casting slab centered at a stop position and improve the cutting rate of the continuous casting slab.

[0004] The purpose of the utility model is achieved in that a fire cutting machine for a slab continuous casting machine comprises:

[0005] Two trolley rails are arranged in parallel and at intervals, and are used to be erected above the billet discharge roller table of the slab continuous casting machine, and a connecting beam is connected between the two trolley rails;

[0006] Measuring roller, installed on the connecting beam, used to measure the length of the continuous casting billet on the billet discharge roller table;

[0007] Two sets of ingot centering devices are arranged opposite to each other, and both sets of ingot centering devices can be telescopically moved along the length direction perpendicular to the trolley track, and can respectively lean against the two sides of the continuous casting ingot;

[0008] The cutting trolley is located between the two trolley tracks, and its two ends are slidably arranged on the two trolley tracks, and is used for cutting the continuous casting billet on the billet discharge roller table.

[0009] In a preferred embodiment of the utility model, each group of ingot centering devices includes at least two centering mechanisms spaced apart along the length direction of the trolley track, the centering mechanism includes a push rod and a driving mechanism, the driving mechanism is connected to the push rod and can drive the push rod to telescopically move along the length direction perpendicular to the trolley track.

[0010] In a preferred embodiment of the present invention, a push plate is further provided at the end of the push rod.

[0011] In a preferred embodiment of the present invention, the driving mechanism is a hydraulic cylinder.

[0012] In a preferred embodiment of the present invention, each set of ingot centering devices includes two centering mechanisms.

[0013] In a preferred embodiment of the present invention, two groups of ingot centering devices are respectively arranged under two trolley tracks.

[0014] In a preferred embodiment of the utility model, the measuring roller includes a telescopic cylinder, a swing rod and a roller, one end of the telescopic cylinder is hinged to the connecting beam, and the other end is hinged to the first end of the swing rod, the rod body of the swing rod is hinged to the connecting beam and the hinge axis of the hinge is parallel to the length direction of the trolley track, the second end of the swing rod is connected to the roller, and the roller can be leaned against the side of the continuous casting billet.

[0015] In a preferred embodiment of the present invention, an encoder is provided on the roller.

[0016] In a preferred embodiment of the present invention, the telescopic cylinder is a pneumatic cylinder.

[0017] In a preferred embodiment of the present invention, the flame cutting machine for the slab continuous casting machine further comprises two sets of column structures, and each trolley track support is installed on the top of the corresponding column structure.

[0018] As described above, the fire cutting machine in the utility model can measure the length of the continuous casting billet by setting a measuring roller, so as to realize the cutting of continuous casting billets of different fixed lengths; when the continuous casting billet stops conveying and reaches the stop position, the stopping posture of the continuous casting billet can be centered and adjusted by setting two sets of billet centering devices, so that its center line is parallel to the center line of the billet discharge roller, so as to prevent the cut continuous casting billet from being a regular rectangle, thereby greatly improving the cutting rate of the continuous casting billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0020] Figure 1 : A top view schematic diagram of a fire cutting machine for a slab continuous casting machine provided by the utility model.

[0021] Figure 2 : A side view schematic diagram of a fire cutting machine for a slab continuous casting machine provided by the utility model.

[0022] Figure 3 : It is a schematic diagram of the end of the fire cutting machine for the slab continuous casting machine provided by the utility model.

[0023] Figure 4 :for Figure 3 A magnified view of the structure in the middle.

[0024] Description of Figure Numbers:

[0025] 1. Trolley track; 11. Connecting beam; 12. Column;

[0026] 2. Measuring roller; 21. Telescopic cylinder; 22. Swing rod; 23. Roller;

[0027] 3. Cutting trolley; 31. Drag chain and medium supply system;

[0028] 4. Ingot centering device; 41. Centering mechanism; 411. Push rod; 412. Driving mechanism; 413. Push plate;

[0029] 5. Billet discharging roller; 51. Billet discharging roller;

[0030] 6. Continuous casting billet. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0032] like Figures 1 to 4 As shown, this embodiment provides a flame cutting machine for a slab continuous casting machine, comprising:

[0033] Two trolley rails 1 are arranged in parallel and at intervals, and are used to be erected above the billet discharge roller 5 of the slab continuous casting machine, and a connecting beam 11 is connected between the two trolley rails 1;

[0034] The measuring roller 2 is arranged on the connecting beam 11 and is used to measure the length of the continuous casting billet 6 on the billet discharge roller table 5;

[0035] Two sets of ingot centering devices 4 are arranged opposite to each other. Both sets of ingot centering devices 4 can be telescopically moved along the length direction perpendicular to the trolley track 1, and can respectively lean against the two sides of the continuous casting ingot 6;

[0036] The cutting trolley 3 is located between the two trolley rails 1 , and its two ends are slidably arranged on the two trolley rails 1 , and is used for cutting the continuous casting billet 6 on the billet discharge roller 5 .

[0037] The length direction of the trolley track 1 is parallel to the conveying direction of the continuous casting billet 6, the length direction of the connecting beam 11 is perpendicular to the length direction of the trolley track 1, and along the conveying direction of the continuous casting billet 6, the billet centering device 4 is located in front of the measuring roller 2; Figure 1 In the orientation shown in the figure, the length direction of the trolley track 1 is arranged along the left-right direction, the continuous casting billet 6 is transported from left to right, and the billet centering device 4 is located on the right side of the measuring roller 2; the billet discharge roller 5 includes a plurality of billet discharge rollers 51 arranged in parallel and spaced apart, each billet discharge roller 51 is located between two trolley tracks 1, and the length direction of the billet discharge roller 51 is perpendicular to the length direction of the trolley track 1. Each billet discharge roller 51 can be started or stopped individually, and is used to transport the continuous casting billet 6 to the stop position or to transport the cut billet to the next process.

[0038] During operation, press Figure 1In the position shown in the figure, the continuous casting billet 6 is conveyed from left to right. After the billet head of the continuous casting billet 6 contacts the measuring roller 2 under the conveyance of the billet discharge roller 5 of the continuous casting machine, the measuring roller 2 starts to measure the length of the continuous casting billet 6. When the length reaches the preset length, the continuous casting billet 6 stops conveying, and the continuous casting billet 6 reaches the stop position. Then, the two sets of billet centering devices 4 are extended and pressed against both sides of the width direction of the continuous casting billet 6, so that the position of the continuous casting billet 6 can be corrected so that its center line is parallel to the center line of the entire billet discharge roller 5. Then, the cutting trolley 3 is moved to a suitable position to cut the continuous casting billet 6.

[0039] Therefore, the fire cutting machine in this embodiment can measure the length of the continuous casting billet 6 by setting the measuring roller 2, so as to realize the cutting of the continuous casting billet 6 of different fixed lengths; when the continuous casting billet 6 stops conveying and reaches the stop position, the two sets of billet centering devices 4 are set to adjust the stop posture of the continuous casting billet 6 so that its center line is parallel to the center line of the billet discharge roller 5, thereby preventing the cut continuous casting billet 6 from being a regular rectangle, thereby greatly improving the cutting rate of the continuous casting billet 6.

[0040] In the specific implementation, refer to Figure 1 , Figure 3 and Figure 4 Each group of ingot centering devices 4 includes at least two centering mechanisms 41 spaced apart along the length direction of the trolley track 1. The centering mechanism 41 includes a push rod 411 and a driving mechanism 412. The driving mechanism 412 is connected to the push rod 411 and can drive the push rod 411 to telescopically move along the length direction perpendicular to the trolley track 1.

[0041] The specific number of centering mechanisms 41 depends on the needs. For example, in the present embodiment, each group of ingot centering devices 4 includes two centering mechanisms 41, and the two groups of ingot centering devices 4 include a total of four centering mechanisms 41. The above-mentioned driving mechanism 412 can, for example, adopt a hydraulic cylinder. Driven by the hydraulic cylinder, the continuous casting ingot 6 can be pushed by four push rods 411 so that its center line is parallel to the center line of the ingot discharge roller 5, so as to improve the ingot cutting rate.

[0042] The end of the push rod 411 is preferably provided with a push plate 413, and the centering effect is better by using the plate surface of the push plate 413 to contact the side of the continuous casting billet 6. The two sets of billet centering devices 4 are preferably respectively arranged under the two trolley tracks 1 to save more space.

[0043] More preferably, refer to Figure 3 The measuring roller 2 includes a telescopic cylinder 21, a swing rod 22 and a roller 23. One end of the telescopic cylinder 21 is hinged to the connecting beam 11, and the other end is hinged to the first end of the swing rod 22. The rod body of the swing rod 22 is hinged to the connecting beam 11 and the hinge axis of the hinge is parallel to the length direction of the trolley track 1. The second end of the swing rod 22 is connected to the roller 23, and the roller 23 can be pressed against the side of the continuous casting billet 6.

[0044] The hinged position of the swinging rod 22 and the connecting beam 11 is arranged near the first end of the swinging rod 22, and the entire swinging rod 22 can swing around the hinge axis, so that the roller 23 at the second end of the swinging rod 22 can be close to or away from the continuous casting billet 6. Before the billet head of the continuous casting billet 6 arrives, the swinging rod 22 is driven by the telescopic cylinder 21 to swing and adjust the roller 23 to a suitable position to ensure that it can contact the side of the continuous casting billet 6. When the billet head of the continuous casting billet 6 arrives, the wheel surface of the roller 23 contacts the side of the continuous casting billet 6, and the length of the continuous casting billet 6 can be measured. Generally, an encoder is provided on the roller 23 to facilitate the measurement of the length of the continuous casting billet 6.

[0045] Generally, the measuring roller 2 is located in the middle of the connecting beam 11 and is suspended above the continuous casting billet 6. The telescopic cylinder 21 can be a pneumatic cylinder, which drives the swing rod 22 to swing, so that the continuous casting billet 6 can be attached to the side of the continuous casting billet 6 in different widths to measure the length of the continuous casting billet 6, which has stronger adaptability. The measured length of the measuring roller 2 can be used to position the cutting trolley 3 to achieve the cutting of billets of different fixed lengths.

[0046] Furthermore, the flame cutting machine for the slab continuous casting machine also includes two sets of column structures, and each trolley track 1 is supported and installed on the top of the corresponding column structure.

[0047] The column structure is used to support the trolley track 1. Each group of column structures may include at least two columns 12 arranged at intervals along the length direction of the trolley track 1. For example, in this embodiment, each group of column structures includes two columns 12. When arranging, the position of the above-mentioned ingot centering device 4 should avoid the columns 12 and the roller beams, roller motors and other facilities of the billet discharge roller 5, and the positions of each column 12 should avoid the roller crossbeams, roller motors and other facilities of the billet discharge roller 5 of the continuous casting machine; the elevation of the above-mentioned trolley track 1 is related to the cutting gun position of each cutting trolley 3, and it is necessary to ensure that the gun position of the cutting trolley 3 can cut the continuous casting billets 6 of different thicknesses and cross-sections, and the length of the trolley track 1 should also be sufficient to ensure that the continuous casting billets 6 of different fixed sizes can be cut.

[0048] The number of the above-mentioned cutting trolleys 3 is determined according to needs, and generally two cutting trolleys 3 are arranged. The fire cutting machine for the slab continuous casting machine will also include a drag chain and a medium supply system 31, which is connected to the cutting trolley 3 and is used to supply oxygen, fuel gas, compressed air and electricity to each cutting trolley 3. Each cutting trolley 3 travels on the trolley track 1, and can locate the length of the continuous casting slab 6 through the measuring roller 2, ignite and realize the cutting operation of the casting slab through the drag chain and the medium supply system 31. The specific structure and cutting process of the cutting trolley 3 are prior art and will not be repeated here.

[0049] More specifically, the specific operation of the fire cutting machine is as follows:

[0050] Before the billet head of the continuous casting billet 6 reaches the measuring roller 2 under the conveyance of the billet roller 5, the swing rod 22 of the measuring roller 2 first swings to a suitable position to ensure that it can contact the side of the continuous casting billet 6. The continuous casting billet 6 continues to run to a suitable position and stops. Under the hydraulic drive of the billet centering device 4, the push rods 411 of the four centering mechanisms 41 extend to correct the position of the billet, and then the four push rods 411 retract. The billet running distance information measured by the measuring roller 2 is transmitted to the cutting trolley 3. The cutting trolley 3 starts to stop at a suitable position based on the billet length information and the measurement information of the measuring roller 2. Oxygen, fuel gas and other media are transported to the cutting gun of the cutting trolley 3 through the drag chain and the medium supply system 31 to start cutting the billet. After the billet cutting is completed, the cutting trolley 3 returns to the standby position. The billet rollers 51 in the billet roller 5 of the continuous casting machine are started in groups to transport the continuous casting billet 6 to the next process.

[0051] In summary, the fire cutting machine in this embodiment has a simple and compact layout, complete functions, environmental protection and energy saving, and is mature and stable; by setting the billet centering device 4, the stopping posture of the continuous casting billet 6 at the cutting position can be controlled and adjusted, and the billet centering during billet cutting can be achieved, which can significantly improve the cutting rate of the cutting machine; the billet centering device 4 is arranged under the trolley track 1, which saves a lot of space; the measuring roller 2 adopts a swingable swing rod 22 structure, which can be suitable for continuous casting billets 6 of different widths, and has stronger adaptability.

[0052] The above is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A flame cutting machine for a slab continuous casting machine, characterized in that: include: Two trolley rails are arranged in parallel and at intervals, and are used to be erected above the billet discharge roller of the slab continuous casting machine, and a connecting beam is connected between the two trolley rails; A measuring roller, arranged on the connecting beam, used for measuring the length of the continuous casting billet on the billet discharge roller; Two sets of ingot centering devices are arranged opposite to each other, and both sets of ingot centering devices can be telescopically moved along the length direction perpendicular to the trolley track, and can respectively abut against two sides of the continuous casting ingot; The cutting trolley is located between the two trolley rails, and its two ends are slidably arranged on the two trolley rails, and is used for cutting the continuous casting billet on the billet discharge roller table.

2. The flame cutting machine for a slab continuous casting machine according to claim 1, characterized in that: Each group of the ingot centering devices includes at least two centering mechanisms spaced apart along the length direction of the trolley track. The centering mechanisms include a push rod and a driving mechanism. The driving mechanism is connected to the push rod and can drive the push rod to telescopically move along the length direction perpendicular to the trolley track.

3. The flame cutting machine for a slab continuous casting machine according to claim 2, characterized in that: A push plate is also provided at the end of the push rod.

4. The flame cutting machine for a slab continuous casting machine according to claim 2, characterized in that: The driving mechanism is a hydraulic cylinder.

5. The flame cutting machine for a slab continuous casting machine according to claim 2, characterized in that: Each set of the strand centering devices comprises two of the centering mechanisms.

6. The flame cutting machine for a slab continuous casting machine according to claim 1, characterized in that: The two groups of the ingot centering devices are respectively arranged below the two trolley rails.

7. The flame cutting machine for a slab continuous casting machine according to claim 1, characterized in that: The measuring roller includes a telescopic cylinder, a swing rod and a roller. One end of the telescopic cylinder is hinged to the connecting beam, and the other end is hinged to the first end of the swing rod. The rod body of the swing rod is hinged to the connecting beam and the hinge axis at the hinge is parallel to the length direction of the trolley track. The second end of the swing rod is connected to the roller, and the roller can be pressed against the side of the continuous casting billet.

8. The flame cutting machine for a slab continuous casting machine according to claim 7, characterized in that: An encoder is arranged on the roller.

9. The flame cutting machine for a slab continuous casting machine according to claim 7, characterized in that: The telescopic cylinder is a pneumatic cylinder.

10. The flame cutting machine for a slab continuous casting machine according to claim 1, characterized in that: The fire cutting machine for the slab continuous casting machine also includes two groups of column structures, and each of the trolley rail supports is installed on the top of the corresponding column structure.

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