Flame cutting machine

Abstract

The utility model discloses a flame cutting machine, which belongs to the technical field of metallurgical equipment, aims to solve the problem that cold steel on a roller and a roller way beam is time-consuming and labor-consuming to clean, and comprises a rack (1), a flame cutting unit (2), a movable roller way (3) and a track baffle (4), a moving roller (31), a roller way beam (32) and a moving vehicle body (33) of the moving roller way (3) can move leftwards or rightwards and leave the position under the flame cutting unit (2), and a rail baffle (4) can cover a rail (34) and prevent cutting slag from being splashed on the rail (34). The cutting slag cannot be splashed and accumulated on the moving roller, the roller way beam, the moving vehicle body and the track, so that the adverse effects of the cutting slag and the granulated water can be avoided, the fault rate of the moving roller way is reduced, the labor intensity of workers for cleaning is reduced, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a fire cutting machine. Background Art

[0002] The continuous casting machine contains a fire cutter, and the cutting roller is below the ingot cut by the fire cutter. Since the roller is supported on the roller beam and a large amount of cutting slag is generated below when the fire cutter is in operation, a large amount of cold steel will accumulate after long-term cutting of the ingot and wrap the roller, making the roller unable to rotate normally. In addition, if there is too much cold steel or it is too high, it will also jam the cutting roller. During the production of the continuous casting machine, the high-temperature ingot cannot be repaired due to continuous output, affecting production. In order to solve the above problems, the cold steel on the roller and the roller beam must be cleaned regularly. Cleaning the cold steel is not only time-consuming and labor-intensive, but also belongs to high-altitude operation and is relatively dangerous. Utility Model Content

[0003] In order to solve the problem of time-consuming and labor-intensive cleaning of cold steel on the rollers and roller beams mentioned above, the utility model provides a fire cutting machine. When the fire cutting unit cuts the ingot, the moving rollers, roller beams and moving body can move to the left or right and leave directly under the fire cutting unit. The cutting slag will not splash and accumulate on the moving rollers, roller beams and moving body. The track baffle can cover the track and prevent the cutting slag from splashing on the track, thereby avoiding the adverse effects of cutting slag and granulated water, reducing the failure rate of the moving roller, reducing the labor intensity of workers' cleaning, and improving productivity.

[0004] The technical solution adopted by the embodiment of the utility model to solve the technical problem is:

[0005] A fire cutting machine comprises a frame and a fire cutting unit, the fire cutting machine also comprises a moving roller and a track baffle, the moving roller comprises a moving roller, a roller beam, a moving vehicle body and a track connected in sequence from bottom to top, the conveying direction of the moving roller is from back to front, the moving roller is located directly below the fire cutting unit, the track extends in the left and right directions, the moving roller, the roller beam and the moving vehicle body can move to the left or right and leave directly below the fire cutting unit, and the track baffle can cover the track and prevent cutting slag from splashing on the track.

[0006] The two tracks are spaced apart from each other, and the track baffle is a fixed structure. The track baffle is located between the fire cutting unit and the track. The track baffle is in a horizontal state, corresponds to the track one by one, and is located above the track.

[0007] The mobile vehicle body comprises a bottom plate, a bracket, an axle and wheels which are connected in sequence from top to bottom, a roller beam is fixed on the bottom plate, a track baffle is located between the bottom plate and the axle, and the wheels are located on the track.

[0008] The two tracks are arranged at intervals in front and behind, and the track baffle can move. The track baffle corresponds to the track one by one. When the moving roller, the roller beam and the moving vehicle body are located directly below the fire cutting unit, the two tracks are located between the two track baffles along the front and rear direction; when the moving roller, the roller beam and the moving vehicle body move to the left or right and leave directly below the fire cutting unit, the track baffle can be located between the fire cutting unit and the track.

[0009] When the moving rollers, roller beams and moving vehicle body are located directly below the fire cutting unit, the track baffle is in an upright or inclined state; when the moving rollers, roller beams and moving vehicle body move to the left or right and leave directly below the fire cutting unit, the track baffle can be in a horizontal or inclined state.

[0010] The outer side of the track baffle is connected with a hydraulic cylinder, the upper end of the track baffle is connected with a rotating shaft, the rotating shaft extends in the left and right directions, and the hydraulic cylinder can drive the track baffle to rotate around the rotating shaft.

[0011] Two hydraulic cylinders are connected to the outer side of the track baffle, and the two hydraulic cylinders are arranged at intervals up and down. The two hydraulic cylinders can drive the track baffle to rotate around a first axis, and the first axis extends in the left-right direction.

[0012] The movable roller table also includes a driving device, which is connected to the movable vehicle body. The driving device can drive the movable roller, the roller table beam and the movable vehicle body to move leftward or rightward and leave directly below the fire cutting unit.

[0013] An introduction plate is arranged at the rear side of the moving roller. The introduction plate is in an inclined state. The rear end of the introduction plate is lower than the front end of the introduction plate. The introduction plate is connected and fixed to the roller beam.

[0014] The moving roller comprises an inner roller core and an outer roller sheet which are arranged inside and outside. The outer diameter of the outer roller sheet is larger than the outer diameter of the inner roller core. A plurality of outer roller sheets are arranged at intervals along the axial direction of the inner roller core.

[0015] The beneficial effects of the embodiments of the utility model are as follows: when the fire cutting unit cuts the ingot, the moving roller, the roller beam and the moving vehicle body can move to the left or right and leave directly under the fire cutting unit, and the cutting slag will not splash and accumulate on the moving roller, the roller beam and the moving vehicle body. The track baffle can cover the track and prevent the cutting slag from splashing on the track, thereby avoiding the adverse effects of cutting slag and granulated water, reducing the failure rate of the moving roller, reducing the labor intensity of workers' cleaning, and improving productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1It is a front view schematic diagram showing that the moving roller, roller table beam and moving vehicle body of the fire cutting machine of the utility model are all located directly below the fire cutting unit.

[0018] Figure 2 It is a top view schematic diagram showing that the moving roller, roller table beam and moving vehicle body of the fire cutting machine of the utility model are all located directly below the fire cutting unit.

[0019] Figure 3 It is a front view schematic diagram showing that the moving roller, roller table beam and moving vehicle body of the fire cutting machine of the utility model are all away from the bottom of the fire cutting unit.

[0020] Figure 4 It is a top view schematic diagram showing that the moving roller, roller table beam and moving vehicle body of the fire cutting machine of the utility model are all away from the bottom of the fire cutting unit.

[0021] Figure 5 It is an enlarged schematic diagram of the moving roller.

[0022] Figure 6 It is a schematic diagram of the track baffle being a fixed structure.

[0023] Figure 7 It is a schematic diagram of the track baffle rotating around the axis.

[0024] Figure 8 It is an enlarged schematic diagram of the moving roller.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Frame; 2. Fire cutting unit; 3. Moving roller; 4. Track baffle; 5. Hydraulic cylinder; 6. Front billet discharge roller; 7. Rear billet discharge roller; 8. Cast billet;

[0027] 31. Moving roller; 32. Roller beam; 33. Moving vehicle body; 34. Track; 35. Driving device; 36. Introducing plate;

[0028] 41. Rotating shaft;

[0029] 311, inner roller core; 312, outer roller sheet;

[0030] 331. Base plate; 332. Bracket; 333. Axle; 334. Wheel. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] In order to facilitate understanding and description, the following description of the present invention adopts an absolute position relationship. Unless otherwise specified, the directional word "upper" means Figure 1In the upper side direction, the locative word "down" means Figure 1 In the lower side direction, the locative word "left" means perpendicular to Figure 1 The paper surface of and pointing in the direction of the inner side of the paper surface, the locative word "right" means perpendicular to Figure 1 The paper surface of and pointing in the direction of the outer side of the paper surface, the locative word "front" means Figure 1 In the right side direction, the locative word "rear" means Figure 1 In the left side direction. The present utility model is described from the observation perspective of the reader or user, but the above locative words should not be understood or construed as limiting the protection scope of the present utility model. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine according to actual needs.

[0033] As Figures 1 to 4 Shown, a flame cutting machine according to an embodiment of the present utility model includes a frame 1 and a flame cutting unit 2. The flame cutting machine further includes a moving roller table 3 and a track baffle 4. The moving roller table 3 includes a moving roller 31, a roller table beam 32, a moving vehicle body 33, a track 34 and a track seat which are connected in sequence from bottom to top. The conveying direction of the moving roller table 3 is from rear to front. The moving roller table 3 is located directly below the flame cutting unit 2. The track 34 extends in the left-right direction. The moving roller 31, the roller table beam 32 and the moving vehicle body 33 can move left or right synchronously and leave directly below the flame cutting unit 2. The track baffle 4 can cover the track 34 and prevent cutting slag from splashing on the track 34.

[0034] When the flame cutting unit cuts the billet, the moving roller 31, the roller table beam 32 and the moving vehicle body 33 can move left or right and leave directly below the flame cutting unit 2. Cutting slag will not splash and accumulate on the moving roller 31, the roller table beam 32 and the moving vehicle body 33. The track baffle 4 can cover the track 34 and prevent cutting slag from splashing on the track 34, thereby avoiding the adverse effects of cutting slag and granulated water, reducing the failure rate of the moving roller table, reducing the labor intensity of workers for cleaning, and improving productivity.

[0035] In this embodiment, two tracks 34 are arranged at intervals front and rear and are mirror images of each other. Two track baffles 4 are also arranged at intervals front and rear and are mirror images of each other. As Figure 6 Shown, the track baffle 4 can be a fixed structure, that is, the track baffle 4 cannot move or rotate. The track baffle 4 is located between the flame cutting unit 2 and the track 34. The track baffle 4 is in a horizontal state. The track baffle 4 corresponds to the track 34 one by one. The track baffle 4 is located above the track 34. The track baffle 4 always covers the track 34. The track baffle 4 is fixedly connected to the frame 1 or the track seat through a mounting bracket.

[0036] As Figure 5As shown, the mobile vehicle 33 includes a bottom plate 331, a bracket 332, an axle 333 and a wheel 334 connected in sequence from top to bottom, the roller beam 32 is fixed on the bottom plate 331, the track baffle 4 is located between the bottom plate 331 and the axle 333, and the wheel 334 is located on the track 34, and the wheel 334 can move along the track 34. The installation position and structure of the track baffle 4 and the bracket 332 need to ensure that the track baffle 4 can neither prevent the mobile vehicle 33 from leaving the right below the tempering cutting unit 2, nor prevent the mobile vehicle 33 from returning to the right below the tempering cutting unit 2.

[0037] Or, if Figure 1 , Figure 3 and Figure 7 As shown, the track baffle 4 can be a movable structure, that is, the track baffle 4 can move (move and / or rotate). When the moving roller 31, the roller beam 32 and the moving vehicle body 33 are located directly below the fire cutting unit 2, the two tracks 34 are located between the two track baffles 4 along the front-to-back direction. At this time, the track baffle 4 does not cover the track 34; when the moving roller 31, the roller beam 32 and the moving vehicle body 33 move to the left or right and leave directly below the fire cutting unit 2, the track baffle 4 can be located between the fire cutting unit 2 and the track 34. At this time, the track baffle 4 covers the track 34, which can prevent cutting slag from splashing on the track 34.

[0038] The track baffle 4 is a movable structure, which is further described below: the track baffle 4 can rotate, and when the moving roller 31, the roller beam 32 and the moving vehicle body 33 are located directly below the fire cutting unit 2, the track baffle 4 is in an upright state or an inclined state; when the moving roller 31, the roller beam 32 and the moving vehicle body 33 move to the left or right and leave directly below the fire cutting unit 2, the track baffle 4 can be in a horizontal state or an inclined state. The structure of the track baffle 4 should ensure that the track baffle 4 does not collide with the track 34 during the rotation process.

[0039] For example, Figure 7 As shown, the outer side of the track baffle 4 is connected to a hydraulic cylinder 5 (the front side of the front track baffle 4 is connected to a hydraulic cylinder 5, and the rear side of the rear track baffle 4 is connected to a hydraulic cylinder 5), and the upper end of the track baffle 4 is connected to a rotating shaft 41, which extends in the left and right directions. The hydraulic cylinder 5 can drive the track baffle 4 to rotate around the rotating shaft 41. The cylinder barrel of the hydraulic cylinder 5 is connected (hinged) to the frame 1 or the track seat through a mounting bracket, the piston rod of the hydraulic cylinder 5 is connected (hinged) to the track baffle 4, and the rotating shaft 41 is connected to the frame 1.

[0040] Or, if Figures 1 to 4As shown, two hydraulic cylinders 5 are connected to the outside of the track baffle 4 (two hydraulic cylinders 5 are connected to the front side of the front track baffle 4, and two hydraulic cylinders 5 are connected to the rear side of the rear track baffle 4). The two hydraulic cylinders 5 are arranged at intervals up and down, and the two hydraulic cylinders 5 can drive the track baffle 4 to rotate around the first axis, and the first axis extends in the left and right direction. The cylinder barrel of the hydraulic cylinder 5 is connected (hinged) to the frame 1 or the track seat through the mounting bracket, and the piston rod of the hydraulic cylinder 5 is connected (hinged) to the track baffle 4. The telescopic length of the piston rod of the lower hydraulic cylinder 5 is greater than the telescopic length of the piston rod of the upper hydraulic cylinder 5, so that the two hydraulic cylinders 5 can drive the track baffle 4 to rotate around the first axis.

[0041] In this embodiment, if Figures 1 to 4 As shown, the movable roller table 3 also includes a driving device 35, which is connected to the movable body 33. The driving device 35 can drive the movable roller 31, the roller beam 32 and the movable body 33 to move leftward or rightward and leave the area directly below the fire cutting unit 2. The driving device 35 can be a hydraulic cylinder, and the driving device 35 is connected to the movable body 33.

[0042] like Figure 5 As shown, in order to facilitate the entry of the dummy bar into the moving roller 3, an introduction plate 36 can be provided at the rear side of the moving roller 31. The introduction plate 36 is in an inclined state, and the rear end of the introduction plate 36 is lower than the front end of the introduction plate 36. The introduction plate 36 is connected and fixed to the roller beam 32. Figure 8 As shown, in order to better dissipate heat, the movable roller 31 may include an inner roller core 311 and an outer roller sheet 312 arranged inside and outside, the axis of the inner roller core 311 coincides with the axis of the outer roller sheet 312, the outer diameter of the outer roller sheet 312 is larger than the outer diameter of the inner roller core 311, and multiple outer roller sheets 312 are arranged at intervals along the axial direction of the inner roller core 311.

[0043] In addition, the fire cutting machine further comprises a front blank discharge roller 6 and a rear blank discharge roller 7, wherein the front blank discharge roller 6 is located at the front of the fire cutting machine and the rear blank discharge roller 7 is located at the rear of the fire cutting machine. In the front-to-back direction, the moving roller 31 of the moving roller 3 is located between the front blank discharge roller 6 and the rear blank discharge roller 7. The structures and positions of the front blank discharge roller 6 and the rear blank discharge roller 7 are the same as those in the prior art.

[0044] The working process of the fire cutting machine will be described below by taking the track baffle 4 of the fire cutting machine as a movable structure and cutting a large round billet as an example.

[0045] The billet discharge direction of the fire cutting machine is from back to front. When the large round billet continuous casting machine delivers the dummy rod or recovers the dummy rod, the moving roller 31, the roller beam 32 and the moving vehicle body 33 are all located directly below the fire cutting unit 2. The moving roller 31 forms a transportation channel with the front billet discharge roller 6 and the rear billet discharge roller 7. The moving roller 31, the front billet discharge roller 6 and the rear billet discharge roller 7 jointly support and transport the dummy rod, which is convenient for the transportation of the dummy rod. At this time, the hydraulic cylinder 5 is in a retracted state, the track baffle 4 is in an upright state, and along the front and rear directions, the two tracks 34 are located between the two track baffles 4, and the track baffle 4 does not cover the track 34.

[0046] When the large round billet continuous casting machine completes the removal of the dummy rod and the dummy rod passes through the moving roller table 3, before the billet 8 enters the moving roller table 3, the driving device 35 moves the moving roller 31, the roller beam 32 and the moving vehicle body 33 to the left or right and leave the bottom of all the fire cutting units 2. The fire cutting machine contains a plurality of independent fire cutting units 2, which are arranged at intervals in the left and right directions and can move forward and backward. Then, the piston rod of the hydraulic cylinder 5 extends, and the track baffle 4 rotates to be located between the fire cutting unit 2 and the track 34. The track baffle 4 is in an inclined state. At this time, the track baffle 4 covers the track 34. The track baffle 4 is in a protective state, which can prevent the cutting slag generated by the fire cutting unit 2 cutting the billet 8 from splashing on the track 34.

[0047] Since the large round billet (cast billet 8) has a large cross-section, for example, the cross-section diameter is above 450 mm, it does not need the support of the moving roller 31 and can be directly cantilevered from the rear billet discharge roller 7 to the front billet discharge roller 6. After the large round billet (cast billet 8) enters the fire cutting machine, the fire cutting unit 2 moves to the required position to cut the billet 8. When the fire cutting unit 2 cuts the billet 8, the moving roller 31, the roller beam 32 and the moving vehicle body 33 have left the bottom of the fire cutting unit 2, and the generated cutting slag will not splash and accumulate on the moving roller 31, the roller beam 32 and the moving vehicle body 33. The track baffle 4 can cover the track 34 and prevent the cutting slag from splashing on the track 34, thereby avoiding the adverse effects of cutting slag and granulated water, reducing the failure rate of the moving roller, reducing the labor intensity of workers cleaning, saving the maintenance time of the moving roller, and improving productivity. The fire cutting machine is suitable for switching large-section (diameter 400mm-1000mm) ingots, and the fire cutting machine can also be called a fire cutting machine suitable for cutting large-section ingots.

[0048] The above is only a specific embodiment of the utility model, and it cannot be used to limit the scope of the utility model. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the utility model should still fall within the scope of the utility model. In addition, the technical features of the utility model can be freely combined with each other, with technical features and technical solutions, with technical solutions and with embodiments.

Claims

1. A fire cutting machine, comprising a frame (1) and a fire cutting unit (2), characterized in that: The fire cutting machine further comprises a moving roller (3) and a track baffle (4); the moving roller (3) comprises a moving roller (31), a roller beam (32), a moving vehicle body (33) and a track (34) connected in sequence from bottom to top; the conveying direction of the moving roller (3) is from back to front; the moving roller (3) is located directly below the fire cutting unit (2); the track (34) extends in the left-right direction; the moving roller (31), the roller beam (32) and the moving vehicle body (33) can move to the left or right and leave directly below the fire cutting unit (2); the track baffle (4) can cover the track (34) and prevent cutting slag from splashing on the track (34).

2. The flame cutting machine according to claim 1, characterized in that: The two rails (34) are arranged at intervals in front and behind, the rail baffle (4) is a fixed structure, the rail baffle (4) is located between the fire cutting unit (2) and the rail (34), the rail baffle (4) is in a horizontal state, the rail baffle (4) corresponds to the rail (34) one by one, and the rail baffle (4) is located above the rail (34).

3. The flame cutting machine according to claim 2, characterized in that: The mobile vehicle body (33) comprises a bottom plate (331), a bracket (332), an axle (333) and wheels (334) which are connected in sequence from top to bottom. The roller beam (32) is fixed on the bottom plate (331), the track baffle (4) is located between the bottom plate (331) and the axle (333), and the wheels (334) are located on the track (34).

4. The flame cutting machine according to claim 1, characterized in that: The two rails (34) are arranged at intervals in front and back, and the rail baffle (4) can move. The rail baffle (4) corresponds to the rails (34) one by one. When the moving roller (31), the roller beam (32) and the moving vehicle body (33) are located directly below the fire cutting unit (2), the two rails (34) are located between the two rail baffles (4) along the front-back direction; when the moving roller (31), the roller beam (32) and the moving vehicle body (33) move to the left or right and leave directly below the fire cutting unit (2), the rail baffle (4) can be located between the fire cutting unit (2) and the rails (34).

5. The flame cutting machine according to claim 4, characterized in that: When the moving roller (31), the roller beam (32) and the moving vehicle body (33) are located directly below the fire cutting unit (2), the track baffle (4) is in an upright state or an inclined state; when the moving roller (31), the roller beam (32) and the moving vehicle body (33) move to the left or right and leave directly below the fire cutting unit (2), the track baffle (4) can be in a horizontal state or an inclined state.

6. The flame cutting machine according to claim 4, characterized in that: The outer side of the track baffle (4) is connected to a hydraulic cylinder (5), the upper end of the track baffle (4) is connected to a rotating shaft (41), the rotating shaft (41) extends in the left-right direction, and the hydraulic cylinder (5) can drive the track baffle (4) to rotate around the rotating shaft (41).

7. The flame cutting machine according to claim 4, characterized in that: Two hydraulic cylinders (5) are connected to the outer side of the track baffle (4), and the two hydraulic cylinders (5) are arranged at an interval up and down. The two hydraulic cylinders (5) can drive the track baffle (4) to rotate around a first axis, and the first axis extends in the left-right direction.

8. The flame cutting machine according to claim 1, characterized in that: The movable roller table (3) further comprises a driving device (35), which is connected to the movable vehicle body (33). The driving device (35) can drive the movable roller (31), the roller table beam (32) and the movable vehicle body (33) to move leftward or rightward and leave the area directly below the fire cutting unit (2).

9. The flame cutting machine according to claim 1, characterized in that: An introduction plate (36) is arranged at the rear side of the moving roller (31). The introduction plate (36) is in an inclined state. The rear end of the introduction plate (36) is lower than the front end of the introduction plate (36). The introduction plate (36) is connected and fixed to the roller beam (32).

10. The flame cutting machine according to claim 1, characterized in that: The movable roller (31) comprises an inner roller core (311) and an outer roller sheet (312) which are arranged inside and outside. The outer diameter of the outer roller sheet (312) is larger than the outer diameter of the inner roller core (311). A plurality of outer roller sheets (312) are arranged at intervals along the axial direction of the inner roller core (311).

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