CN115121902A

CN115121902A - Automatic flame angle cleaning machine

Info

Publication number: CN115121902A
Application number: CN202210850309.4A
Authority: CN
Inventors: 胡毅; 李鹏; 李起舟; 梁可妮; 王舒逸; 梁库
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-09-30

Abstract

The invention relates to the technical field of continuous casting slabs of steel plants, 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 moving vehicle, a second transverse moving vehicle and an energy medium box, wherein two flame burners are arranged on vertical arms of the first transverse moving vehicle and the second transverse moving vehicle respectively, the two flame burners are arranged one above the other, the upper flame burners are matched with the corresponding upper corners of the slabs in shape, and the lower flame burners are matched with the corresponding lower corners of the slabs in shape; the gantry beam is provided with a vertical laser range finder, the opposite sides of the two vertical arms are respectively provided with a horizontal laser range finder, and the controller adjusts the left and right positions of the two cross sliding cars, the height of the upper flame burner and the moving speed of the steel billet to finish automatic angle clearing operation. The invention has the beneficial effects that: can realize once only cleaing away four angles, need not the tilting operation, improve production efficiency, practice thrift the energy, improve the automation level of steel mill production by a wide margin.

Description

Automatic flame angle cleaning machine

Technical Field

The invention relates to the technical field of continuous casting slabs in steel plants, in particular to an automatic flame angle cleaning machine.

Background

Slab continuous casting is a continuous casting/iron-making technique using slabs as main products. At present, most of domestic plate production raw materials are all produced by a slab caster, and a low-pulling-speed stage is involved in the continuous casting starting and stopping processes, the surface temperature of a casting blank is reduced to enter a third brittle interval in the low-pulling-speed stage, transverse crack defects are formed on the surface or under the surface after the casting blank enters a straightening area, particularly the corner crack phenomenon of the slab, and the production of the following procedures cannot be normally carried out. In order to solve the defect of corner crack of the plate blank, most production units adopt a finishing method, such as deep flame skinning, and need to manually hold a special tool for cleaning.

The utility model discloses a chinese utility model patent of application number 201020163372.3 discloses a can avoid limit portion surface crack's steel sheet, including the slab, the slab is the cuboid structure, and two corners of its upper surface sweep into the chamfer structure through flame treatment. The size range of one side of the chamfer structure close to the narrow surface is 40-50mm, and the size range of one side close to the intrados surface is 5-8 mm. The scheme solves the problem that cracks appear on the edge of the steel plate, but causes metal loss.

The Chinese invention patent with the application number of 202210104987.6 discloses a one-key type continuous casting slab four-corner thermal state cutting device and a method, and the technical scheme is as follows: the gas cutting part is arranged on the casting blank supporting and positioning and moving part, the electric appliance automatic control part is connected with the gas cutting part to perform steel billet centering and placing, guide wheel positioning and opening degree adjustment, cutting gun positioning adjustment and cutting gun flame adjustment, and finally, a one-key cutting process is started to realize the corner cutting treatment of the steel billets of the variety steel with cold rolling edge cracks before rolling. The method can eliminate the edge cracks of the plate blank before rolling and replace the function of a chamfering crystallizer.

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

Disclosure of Invention

The invention aims to provide an automatic flame angle cleaning machine, which overcomes the defects of the prior art, solves the problem of corner crack treatment of the plate blank existing in the steel mill at present, improves the automation level of steel mill production, 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 purpose, the invention adopts the following technical scheme:

an automatic flame corner cleaning machine is characterized by comprising a gantry beam, a track, a lifting bracket, a first cross sliding vehicle, a second cross sliding vehicle and a box capable of being clamped, wherein the gantry beam is arranged on the track, the first cross sliding vehicle and the second cross sliding vehicle are respectively connected with the gantry beam through a traveling mechanism, and guide wheels are respectively arranged on the first cross sliding vehicle and the second cross sliding vehicle and are in sliding connection with guide rails; a trench is arranged below the gantry beam, roller ways are arranged in the trench, a lifting bracket is arranged between every two adjacent roller ways, and the bottom of the lifting bracket is fixedly arranged on the base; the first transverse moving vehicle and the second transverse moving vehicle are connected with an energy medium box through pipelines, and a gas tank and an oxygen cylinder are arranged in the energy medium box; two flame burners are arranged on the vertical arms of the first transverse moving vehicle and the second transverse moving vehicle, the two flame burners are arranged one above the other, the upper flame burner corresponds to the upper corner position of the slab, and the lower flame burner has a shape corresponding to the lower corner 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 cross sliding cars, 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 angle clearing operation.

Further, at least one of the flame burners 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 the middle, two guide rods are arranged on two sides of the lifting oil cylinder respectively, two guide sleeves and two guide rod movably connected are correspondingly arranged on the base, and the lifting oil cylinder is embedded in the base.

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

Furthermore, the walking 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 and is meshed with the rack on the guide rail.

Furthermore, the upper flame burner is installed on a lifting seat, the lifting seat is meshed with a lead screw arranged on the plumbing arm through internal threads and is in sliding connection with a polish rod arranged on the plumbing arm, a servo lifting motor is arranged at the top of the lead screw, and the two servo lifting motors are synchronously controlled through a servo motor controller.

Furthermore, the bottom parts of the two upright columns of the gantry beam are respectively provided with a traveling wheel, the traveling wheels are connected with a traveling servo motor, and the two traveling servo motors are synchronously controlled through a servo motor controller.

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

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

Compared with the prior art, the invention has the beneficial effects that:

1) four flame nozzles of the angle cleaner enter working positions simultaneously, four angles can be cleaned at one time, angular cracks are eliminated through burning or cutting, steel turning operation is not needed, production efficiency is effectively improved, energy is saved, the automation level of steel factory production is greatly improved, and production efficiency of products is improved. 2) The operation is carried out under full-automatic control, operators do not need to participate in the operation in a short distance, the operation environment of workers is obviously improved, and the labor intensity of the operators is reduced. 3) The product quality is improved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the automatic scarfing machine of the present invention;

FIG. 2 is a schematic diagram of a use state of an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention;

FIG. 4 is a schematic view of the arrangement of the flame burners on the drop arms in an embodiment of the invention;

FIG. 5 is a schematic view of the running gear of the embodiment of the invention;

FIG. 6 is a schematic structural view of a gantry beam walking wheel in the embodiment of the invention.

In the figure: 1-gantry beam, 2-track, 3-lifting bracket, 4-first transverse moving vehicle, 5-second transverse moving vehicle, 6-energy medium box, 7-traveling mechanism, 8-guide rail, 9-guide wheel, 10-trench, 11-roller bed, 12-base, 13-vertical arm, 14-vertical laser range finder, 15-horizontal laser range finder, 16-flame burner, 17-bracket beam, 18-guide rod, 19-lifting oil cylinder, 20-guide sleeve, 21-driving wheel, 22-lifting seat, 23-lead screw, 24-servo lifting motor, 25-traveling wheel, 26-traveling servo motor, 27-roller bed conveying line, 28-rotating vehicle, 29-corner clearing operation area, 30-billet, 31-rack, 32-main roller way slag removal groove, 33-polished rod, 34-servo motor and 35-blowing nozzle.

Detailed description of the invention

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention 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 invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

The components of embodiments of the present invention 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 present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

As shown in fig. 1-6, the structural schematic diagram of an embodiment of the automatic flame angle cleaner of the present invention includes a gantry beam 1, a track 2, a lifting bracket 3, a first traverse car 4, a second traverse car 5 and a box 6, wherein the gantry beam 1 can move along the track 2, the first traverse car 4 and the second traverse car 5 are respectively connected with the gantry beam 1 through a traveling mechanism 7, and the first traverse car 4 and the second traverse car 5 are respectively provided with a guide wheel 9 and are in sliding connection with a guide rail 8; a trench 10 is arranged below the gantry beam 1, roller ways 11 are arranged in the trench 10, a lifting bracket 3 is arranged between every two adjacent roller ways 11, and the bottom of the lifting bracket 3 is fixedly arranged on a base 12; the first cross travelling vehicle 4 and the second cross travelling vehicle 5 are connected with an energy medium box 6 through pipelines, and a gas tank and an oxygen cylinder are arranged in the energy medium box 6; the hanging arms 13 of the first transverse moving vehicle 4 and the second transverse moving vehicle 5 are respectively provided with two flame burners 16, the two flame burners 16 are arranged one above the other, wherein the upper flame burner 16 corresponds to the upper corner of the slab, and the lower flame burner 16 corresponds to the lower corner of the slab; the lower flame burner 16 and the vertical arm 13 are fixed in position, 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 cross sliding cars, the height of the upper flame burner 16 and the moving speed of the roller way 11 through data of the vertical laser range finders 14 and the horizontal laser range finders 15 to complete automatic angle clearing operation. The vertical laser range finder 14 is used for collecting the height of the upper surface of the steel billet 30 so as to adjust the height of the upper flame burner, and the horizontal laser range finder 15 is used for collecting the distance between the cross sliding vehicle and the side edge of the steel billet so as to adjust the positions of the two vertical arms.

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

Lifting bracket 3 includes bracket crossbeam 17, guide bar 18 and lift cylinder 19, bracket crossbeam 17 bottom is connected on lift cylinder 19's piston end in the middle, bracket crossbeam 17 top is equipped with the arch of narrowing, prevent to be damaged by high temperature, lift cylinder 19 both sides respectively are equipped with a guide bar 18, basic base 12 corresponds and is equipped with two uide bushing 20 and guide bar 18 swing joint, lift cylinder 19 inlays in basic base 12, bracket crossbeam 17's effect is with holding up steel billet 30, be convenient for operate four angles about controlling. The lifting interval of the lifting bracket 3 is 150-300 mm, and is adjusted according to the situation.

The walking 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 and meshed with a rack 31 on the guide rail 8, the rack 31 is used for avoiding the guide wheel from slipping, and the moving precision of the transverse moving vehicle is improved.

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

The bottom parts of two columns of the gantry beam 1 are respectively provided with a traveling wheel 25, the traveling wheels 25 are connected with a traveling servo motor 26, and the two traveling servo motors 26 are synchronously controlled by a servo motor controller. The servo motor controller is a Taida A2 series servo motor controller.

The embodiment of the invention has the following working flow description: the billet 30 is moved on the roller conveyor line 27 to a designated position in the corner clearance work area 29 by the rotating vehicle 28. When the steel billet runs onto 4-6 bracket cross beams 17 arranged at intervals of the roller way, the steel billet 30 stops moving, and the bracket cross beams 17 rise to lift the steel billet 30. The automatic flame angle cleaner enters a working initial position. The transverse moving vehicle 4 moves left and right on the cross beam 5 of the angle cleaning machine, the flame burners 16 move up and down on the slide ways 7 which are hung on the transverse moving vehicle, so that the flame burners 16 enter working positions, after the flame burners 16 are preheated, the walking servo motor 26 is started, the angle cleaning machine moves forward, the burners move along the length direction of a slab, the angle cleaning operation is continuously carried out, and the four burners 16 can synchronously clean the left, right, upper and lower four corners of a steel billet. After the steel billet is cleaned, the plate blank is put back to the roller way, moved out of the working position, and the angle cleaning machine returns to the initial position.

In the process of corner cleaning, in order to protect the bracket beam 17, after the flame burner leaves the billet, the bracket beam 17 at the rear is in a falling state. In order to remove the oxidation slag, the trench can be provided with a certain inclination and is communicated with the main roller way slag cleaning trench 32.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that all other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.

Claims

1. An automatic flame corner cleaning machine is characterized by comprising a gantry beam, a track, a lifting bracket, a first cross sliding vehicle, a second cross sliding vehicle and a box capable of being clamped, wherein the gantry beam is arranged on the track, the first cross sliding vehicle and the second cross sliding vehicle are respectively connected with the gantry beam through a traveling mechanism, and guide wheels are respectively arranged on the first cross sliding vehicle and the second cross sliding vehicle and are in sliding connection with guide rails; a trench is arranged below the gantry beam, roller ways are arranged in the trench, a lifting bracket is arranged between every two adjacent roller ways, and the bottom of the lifting bracket is fixedly arranged on the base; the first transverse moving vehicle and the second transverse moving vehicle are connected with an energy medium box through pipelines, and a gas tank and an oxygen cylinder are arranged in the energy medium box; two flame burners are arranged on the vertical arms of the first transverse moving vehicle and the second transverse moving vehicle, the two flame burners are arranged one above the other, the upper flame burner corresponds to the upper corner position of the slab, and the lower flame burner has a shape corresponding to the lower corner 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 cross sliding cars, 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 angle clearing operation.

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

3. The automatic flame scarfing machine of claim 1, wherein the lifting bracket comprises a bracket beam, a guide rod and a lift cylinder, the bottom of the bracket beam is centrally connected to the piston end of the lift cylinder, two sides of the lift cylinder are respectively provided with a guide rod, the base is correspondingly provided with two guide sleeves movably connected with the guide rod, and the lift cylinder is embedded in the base.

4. An automatic flame angle-clearing machine according to claim 3, characterized in that the lifting interval of the bracket beam is 150-300 mm.

5. The automatic scarfing machine of claim 1 wherein the traveling mechanism comprises a guide wheel and a drive wheel, the drive wheel is connected to a servo motor, the rim of the drive wheel is mated to the rail, and the guide wheel has a toothed rim that engages the rack on the rail.

6. The automatic flame angle cleaner of claim 1, wherein the upper flame burner is mounted on a lifting base, the lifting base is engaged with a lead screw arranged on the plumbing arm through internal threads and is slidably connected with a polish rod arranged on the plumbing arm, a servo lifting motor is arranged at the top of the lead screw, and the two servo lifting motors are synchronously controlled through a servo motor controller.

7. The automatic flame angle cleaner as claimed in claim 1, wherein the two columns of the gantry beam are respectively provided with a traveling wheel at the bottom, the traveling wheels are connected with a traveling servo motor, and the two traveling servo motors are synchronously controlled by a servo motor controller.

8. The automatic flame scarfing machine of claim 1, wherein a purging nozzle is provided near the flame burner, and the purging nozzle is connected to an oxygen cylinder or a compressed air machine.

9. The automatic flame angle cleaner of claim 1, wherein the servo motor controller is a Taida A2 series servo motor controller.