CN219358223U - Automatic flame corner cleaning machine - Google Patents

Abstract

The utility model relates to the technical field of continuous casting slabs in steel mills, in particular to an automatic flame corner cleaning machine which is characterized by comprising a gantry beam, a rail, a lifting bracket, a first transverse vehicle, a second transverse vehicle and an energy medium box, wherein two flame burners are arranged on the vertical arms of the first transverse vehicle and the second transverse vehicle, the two flame burners are arranged one above the other, the upper flame burner is matched with the slab in a corresponding upper angle shape, and the burner shape of the lower flame burner is matched with the slab in a corresponding lower angle shape; the vertical laser range finders are arranged on the gantry beam, the horizontal laser range finders are respectively arranged on the opposite sides of the two vertical arms, and the controller adjusts the left and right positions of the two transverse traveling vehicles, the height of the upper flame burner and the moving speed of the steel billet to finish automatic corner cleaning operation. The beneficial effects of the utility model are as follows: four corners can be cleaned at one time, steel turning operation is not needed, production efficiency is improved, energy is saved, and automation level of steel mill production is greatly improved.

Description

Automatic flame corner cleaning machine

Technical Field

The utility model relates to the technical field of continuous casting slabs in steel mills, in particular to an automatic flame corner cleaning machine.

Background

Continuous casting of slabs is a continuous casting/iron-making technology using slabs as main products. At present, most of domestic plate production raw materials are produced by slab continuous casting machines, and in the continuous casting start and stop processes, the low-pulling-speed stage is involved, so that the surface temperature of a casting blank is reduced to enter a third brittleness interval, transverse crack defects, especially slab corner cracking, are formed on the surface or under the skin after the casting blank enters a straightening area, and the production of the following procedures cannot be normally carried out. In order to solve the defect of slab corner cracking, most production units adopt finishing methods, such as deep flame peeling, and a special manual tool is needed for cleaning, and the finishing methods cause a large amount of energy and metal waste on one hand, influence hot charging and hot delivery on the other hand, cause great problems on production smooth operation and quality cost, and have the defects of severe operation environment, unstable quality and low efficiency.

The Chinese patent application No. 201020163372.3 discloses a steel plate capable of avoiding edge surface cracks, which comprises a plate blank, wherein the plate blank is of a cuboid structure, and two corners of the upper surface of the plate blank are purged into a chamfer structure through flame treatment. The dimension of the chamfer structure near one side of the narrow surface is 40-50mm, and the dimension of the chamfer structure near one side of the intrados is 5-8mm. The problem that the crack appears at steel sheet limit portion has been solved to this scheme, but has caused the metal loss.

The utility model of China patent application No. 202210104987.6 discloses a device and a method for hot cutting four corners of a continuous casting slab by one key, and the technical scheme is as follows: the gas cutting part is arranged on the casting blank supporting, positioning and moving part, the electric appliance automatic control part is connected with the gas cutting part, steel billets are centered and placed, the guide wheel is positioned and the opening degree is adjusted, the cutting gun is positioned and adjusted, the cutting gun flame is adjusted, and finally, a one-key cutting process is started, so that the angle cutting treatment is carried out on the steel billets of the variety steel with edge cracks generated by cold rolling before rolling. The method realizes the function of eliminating the crack at the edge of the plate blank before rolling and replacing the chamfer crystallizer.

The essence of the prior art is that the metal of the corner crack part of the slab is cut off in a chamfering way, and the defect is that the metal loss is large, if the cutting depth does not reach the deep corner crack, cracks still exist, so that a new crack source is formed in the subsequent rolling process, and the product quality is affected.

Disclosure of Invention

The utility model aims to provide an automatic flame corner cleaning machine, which overcomes the defects of the prior art, solves the problem of slab corner crack treatment existing in steel mills at present, improves the automation level of production of the steel mill, improves the working environment of workers, reduces the labor intensity of the workers, and improves the product quality and the production efficiency.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the automatic flame corner cleaning machine is characterized by comprising a gantry beam, a track, a lifting bracket, a first traversing carriage, a second traversing carriage and an energy medium box, wherein the gantry beam is arranged on the track, the first traversing carriage and the second traversing carriage are respectively connected with the gantry beam through travelling mechanisms, and guide wheels are respectively arranged on the first traversing carriage and the second traversing carriage and are in sliding connection with guide rails; a trench is arranged below the gantry beam, a roller way is arranged in the trench, a lifting bracket is arranged between adjacent roller ways, and the bottom of the lifting bracket is fixedly arranged on the foundation base; the first transverse trolley and the second transverse trolley are connected with a medium box through pipelines, and a gas tank and an oxygen bottle are arranged in the medium box; two flame burners are arranged on the vertical arms of the first transverse trolley and the second transverse trolley, the two flame burners are arranged one above the other, wherein the flame burner at the upper position corresponds to the upper angular position of the slab, and the flame burner at the lower position corresponds to the lower angular position of the slab; the lower flame burner is fixed with the position of the vertical arm, the upper flame burner can move up and down along the vertical arm, the vertical laser range finders are arranged on the gantry beam, the horizontal laser range finders are respectively arranged on the opposite sides of the two vertical arms, and the controller adjusts the left and right positions of the two traversing carts, the height of the upper flame burner and the moving speed of the steel billet through the data of the vertical laser range finders and the horizontal laser range finders to complete automatic corner cleaning operation.

Further, at least one flame burner is a gas welding torch or a gas cutting torch, and the gas is any one of acetylene, propane, natural gas and coal gas.

Further, the lifting bracket comprises a bracket beam, guide rods and a lifting oil cylinder, the bottom of the bracket beam is connected to the piston end of the lifting oil cylinder in a centered manner, the two guide rods are respectively arranged on two sides of the lifting oil cylinder, the base is correspondingly provided with two guide sleeves and movably connected with the guide rods, and the lifting oil cylinder is embedded in the base.

Further, the lifting interval of the bracket beam is 150-300 mm.

Further, the running mechanism comprises a guide wheel and a driving wheel, the driving wheel is connected with a servo motor, the rim of the driving wheel is matched with the guide rail, and the guide wheel is provided with a toothed rim which is meshed with a rack on the guide rail.

Further, the upper flame burner is installed on the lifting seat, the lifting seat is connected with a screw rod arranged on the vertical arm in a meshed manner through an internal thread and is in sliding connection with a polished rod arranged on the vertical arm, a servo lifting motor is arranged at the top of the screw rod, and the two servo lifting motors are synchronously controlled through a servo motor controller.

Further, travelling wheels are respectively arranged at the bottoms of the two upright posts of the gantry beam, the travelling wheels are connected with travelling servo motors, and the two travelling servo motors are synchronously controlled by a servo motor controller.

Further, a purging nozzle is arranged near the flame burner and is connected with an oxygen bottle or a compressed air machine.

Further, the servo motor controller is a Tadao A2 series servo motor controller.

Compared with the prior art, the utility model has the beneficial effects that:

1) Four flame burners of the corner cleaning machine enter the working position at the same time, so that four corners can be cleaned at one time, corner cracks are eliminated through burning or cutting, steel turning operation is not needed, the production efficiency is effectively improved, energy is saved, the automation level of steel mill production is greatly improved, and the production efficiency of products is improved. 2) The operation is performed under full-automatic control, no close-range participation of operators is needed, the operation environment of workers is obviously improved, and the labor intensity of operators is reduced. 3) The product quality is improved.

Drawings

FIG. 1 is a schematic view of an embodiment of an automatic flame corner cleaner of the present utility model;

FIG. 2 is a schematic diagram of the usage status of an embodiment of the present utility model;

FIG. 3 is a schematic view of a lifting bracket according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the arrangement of flame burners on a drop arm in an embodiment of the present utility model;

FIG. 5 is a schematic view of a running gear in accordance with an embodiment of the present utility model;

fig. 6 is a schematic view of a gantry beam walking wheel structure in an embodiment of the present utility model.

In the figure: the device comprises a 1-gantry beam, a 2-track, a 3-lifting bracket, a 4-traversing carriage I, a 5-traversing carriage II, a 6-energy medium box, a 7-travelling mechanism, a 8-guide rail, a 9-guide wheel, a 10-trench, a 11-roller way, a 12-base seat, a 13-vertical arm, a 14-vertical laser range finder, a 15-horizontal laser range finder, a 16-flame burner, a 17-bracket beam, a 18-guide rod, a 19-lifting oil cylinder, a 20-guide sleeve, a 21-driving wheel, a 22-lifting seat, a 23-lead screw, a 24-servo lifting motor, a 25-travelling wheel, a 26-travelling servo motor, a 27-roller way conveying line, a 28-rotating carriage, a 29-angle cleaning operation area, a 30-billet, a 31-rack, a 32-main roller way slag cleaning trench, a 33-polished rod, a 34-servo motor and a 35-purging nozzle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

1-6, the embodiment of the automatic flame corner cleaning machine comprises a gantry beam 1, a track 2, a lifting bracket 3, a first traversing carriage 4, a second traversing carriage 5 and a medium box 6, wherein the gantry beam 1 can move along the track 2, the first traversing carriage 4 and the second traversing carriage 5 are respectively connected with the gantry beam 1 through a running mechanism 7, and guide wheels 9 are respectively arranged on the first traversing carriage 4 and the second traversing carriage 5 and are in sliding connection with a guide rail 8; a trench 10 is arranged below the gantry beam 1, a roller way 11 is arranged in the trench 10, a lifting bracket 3 is arranged between adjacent roller ways 11, and the bottom of the lifting bracket 3 is fixedly arranged on a foundation base 12; the first transverse trolley 4 and the second transverse trolley 5 are connected with the energy medium box 6 through pipelines, and a gas tank and an oxygen tank are arranged in the energy medium box 6; two flame burners 16 are arranged on the vertical arms 13 of the first traversing carriage 4 and the second traversing carriage 5, and the two flame burners 16 are arranged one above the other, wherein the flame burner 16 at the upper position corresponds to the upper corner of the slab, and the flame burner 16 at the lower position corresponds to the lower corner of the slab; the lower flame burner 16 is fixed with the position of the vertical arm 13, the upper flame burner 16 can move up and down along the vertical arm 13, the vertical laser range finders 14 are arranged on the gantry beam 1, the horizontal laser range finders 15 are respectively arranged on the opposite sides of the two vertical arms 13, and the controller adjusts the left and right positions of the two traversing vehicles, the height of the upper flame burner 16 and the moving speed of the roller table 11 through the data of the vertical laser range finders 14 and the horizontal laser range finders 15 to finish automatic corner cleaning operation. The vertical laser rangefinder 14 is used for collecting the height of the upper surface of the billet 30 so as to adjust the height of the upper flame burner, and the horizontal laser rangefinder 15 is used for collecting the distance between the transverse trolley and the side edge of the billet so as to adjust the positions of the two vertical arms.

The blowing nozzle 35 is arranged near the flame burner 16, the shape of the gas nozzle is a single hole or an arc narrow gap, the gas nozzle is connected with a gas pipe and an oxygen pipe, the burning melting or cutting effect can be realized, and the blowing nozzle 35 is used for blowing off oxidizing slag. When the heating area of the flame burner 16 reaches a molten state, oxygen blowing is performed, so that the steel is combusted in a pure oxygen environment to form oxide slag, and then the oxide slag is blown away, thereby achieving the purpose of removing corner cracks.

The lifting bracket 3 comprises a bracket beam 17, guide rods 18 and a lifting oil cylinder 19, the bottom of the bracket beam 17 is centrally connected to the piston end of the lifting oil cylinder 19, the top of the bracket beam 17 is provided with a narrowed bulge, the bracket beam is prevented from being damaged by high temperature, two sides of the lifting oil cylinder 19 are respectively provided with one guide rod 18, the foundation base 12 is correspondingly provided with two guide sleeves 20 which are movably connected with the guide rods 18, the lifting oil cylinder 19 is embedded in the foundation base 12, the bracket beam 17 has the function of supporting a steel billet 30, and the operation on the left, right, upper and lower corners is facilitated. The lifting interval of the lifting bracket 3 is 150-300 mm, and the lifting interval is adjusted according to conditions.

The running mechanism 7 comprises a guide wheel 9 and a driving wheel 21, the driving wheel 21 is connected with a servo motor 34 through a belt, the rim of the driving wheel 21 is matched with the guide rail 8, the guide wheel 9 is provided with a toothed rim which is meshed with a rack 31 on the guide rail 8, and the rack 31 has the function of avoiding the slipping of the guide wheel and aims at improving the moving precision of the traversing carriage.

The upper flame burner 16 is arranged on the lifting seat 22, the lifting seat 22 is in meshed connection with the screw rod 23 on the vertical arm 13 through internal threads, and is in sliding fit with the polished rod 33 on the vertical arm 13, the top of the screw rod 23 is provided with the servo lifting motor 24, and the two servo lifting motors 24 are synchronously controlled by a servo motor controller, so that the synchronous lifting of the left flame burner 16 and the right flame burner 16 is realized.

The bottoms of the two upright posts of the gantry beam 1 are respectively provided with a travelling wheel 25, the travelling wheels 25 are connected with travelling servo motors 26, and the two travelling servo motors 26 are synchronously controlled by a servo motor controller. The servo motor controller is a Taida A2 series servo motor controller.

Description of workflow in the embodiment of the utility model: the billet 30 is moved on the roller conveyor line 27 by the turning carriage 28 to a specified position in the chamfering work zone 29. When the billet steel runs on 4-6 bracket beams 17 arranged at intervals of the roller way, the billet steel 30 stops moving, and the bracket beams 17 are lifted up to hold up the billet steel 30. The automatic flame corner cleaning machine enters a working starting position. The transverse trolley 4 moves left and right on the transverse beam 5 of the corner cleaning machine, the flame burner 16 moves up and down on the sliding way 7 of the transverse trolley, so that the flame burner 16 enters a working position, after the flame burner 16 is preheated, the walking servo motor 26 is started, the corner cleaning machine moves forwards, the burner moves along the length direction of a slab, the corner cleaning operation is continuously carried out, and the four burners 16 can synchronously clean the left, right, upper and lower corners of the slab. After the billet is cleaned, the slab is put back into the roller way, the working position is moved out, and the angle cleaning machine returns to the initial position.

In the corner cleaning process, in order to protect the bracket beam 17, the bracket beam 17 at the rear is in a falling state after the flame burner leaves the billet. To remove the oxidized slag, the pit may be provided with a slope and communicate with the main runner slag removal pit 32.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that, based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Claims (9)

1. The automatic flame corner cleaning machine is characterized by comprising a gantry beam, a track, a lifting bracket, a first traversing carriage, a second traversing carriage and an energy medium box, wherein the gantry beam is arranged on the track, the first traversing carriage and the second traversing carriage are respectively connected with the gantry beam through travelling mechanisms, and guide wheels are respectively arranged on the first traversing carriage and the second traversing carriage and are in sliding connection with guide rails; a trench is arranged below the gantry beam, a roller way is arranged in the trench, a lifting bracket is arranged between adjacent roller ways, and the bottom of the lifting bracket is fixedly arranged on the foundation base; the first transverse trolley and the second transverse trolley are connected with a medium box through pipelines, and a gas tank and an oxygen bottle are arranged in the medium box; two flame burners are arranged on the vertical arms of the first transverse trolley and the second transverse trolley, the two flame burners are arranged one above the other, wherein the flame burner at the upper position corresponds to the upper angular position of the slab, and the flame burner at the lower position corresponds to the lower angular position of the slab; the lower flame burner is fixed with the position of the vertical arm, the upper flame burner can move up and down along the vertical arm, the vertical laser range finders are arranged on the gantry beam, the horizontal laser range finders are respectively arranged on the opposite sides of the two vertical arms, and the controller adjusts the left and right positions of the two traversing carts, the height of the upper flame burner and the moving speed of the steel billet through the data of the vertical laser range finders and the horizontal laser range finders to complete automatic corner cleaning operation.

2. The automatic flame corner cleaning machine according to claim 1, wherein at least one flame burner is a gas welding torch or a gas cutting torch, and the gas is any one of acetylene, propane, natural gas and coal gas.

3. The automatic flame corner cleaning machine according to claim 1, wherein the lifting bracket comprises a bracket beam, guide rods and a lifting oil cylinder, the bottom of the bracket beam is centrally connected to the piston end of the lifting oil cylinder, one guide rod is arranged on each of two sides of the lifting oil cylinder, two guide sleeves are correspondingly arranged on the base seat and are movably connected with the guide rods, and the lifting oil cylinder is embedded in the base seat.

4. The automatic flame corner cleaning machine according to claim 3, wherein the lifting interval of the bracket beam is 150-300 mm.

5. An automatic flame corner cleaning machine according to claim 1, wherein the running mechanism comprises a guide wheel and a driving wheel, the driving wheel is connected with a servo motor, the rim of the driving wheel is matched with the guide rail, and the guide wheel is provided with a toothed rim which is meshed with a rack on the guide rail.

6. The automatic flame corner cleaning machine according to claim 1, wherein the upper flame burner is mounted on a lifting seat, the lifting seat is connected with a screw rod arranged on a vertical arm in a meshed manner through an internal thread and is in sliding connection with a polish rod arranged on the vertical arm, a servo lifting motor is arranged at the top of the screw rod, and the two servo lifting motors are synchronously controlled through a servo motor controller.

7. The automatic flame corner cleaning machine according to claim 1, wherein walking wheels are respectively arranged at the bottoms of two upright posts of the gantry beam, the walking wheels are connected with walking servo motors, and the two walking servo motors are synchronously controlled by a servo motor controller.

8. An automatic flame corner cleaning machine according to claim 1, wherein a purge nozzle is arranged near the flame burner, and the purge nozzle is connected with an oxygen bottle or a compressed air machine.

9. The automatic flame angle cleaner of claim 6, wherein the servo motor controller is a table A2 series servo motor controller.