KR100775322B1 - An Apparatus for Cutting Scarfing Chip - Google Patents

Abstract

The present invention relates to a chipping chip removal device, and more particularly, by quickly performing a series of processes for automatically detecting and removing the state of the chip and the slab flowed on the cutting surface after the scraping operation, the chip removal operation quickly and easily The present invention relates to a scarfing chip removing device.

The technical configuration, the detection unit 120 for detecting the inclined state of the cut surface of the cast steel and the sensing unit 100 consisting of a burner 110 is installed to be spaced apart by heating the chip 410 and the cast steel 400; and the An operating part 200 fixed to the lower part of the sensing part 100 and provided with a cutting member 210 for removing the chip 410; and installed under the operating part 200, the operating part 200 and the sensing part. A base part 300 including a gear 331, a motor 336, an electromagnet 320, and a support plate 310 having insertion holes 311 and 312 into which the members are inserted to rotate the part 100; It consists of.

Accordingly, by automatically detecting and removing the chip formed on the cut surface of the cast, it becomes a scarfing chip removal device to eliminate the manual process and to work quickly and safely.

Detector, actuator, base, cutting member, detector, burner,

Description

Scarf Chip Removal Device {An Apparatus for Cutting Scarfing Chip}

1 is a state diagram showing a process state of a cast strip in which a conventional scarfing chip is generated;

2 is a working view showing a conventional scarfing chip removal method;

3 is an exploded perspective view showing a scarfing chip removal apparatus according to the present invention;

Figure 4 is an assembled perspective view showing the scarfing chip removal apparatus according to the present invention

5 is a side cross-sectional view of a burner showing a scarfing chip removing device according to the present invention.

Figure 6 (a) and (b) is a cross-sectional view showing an embodiment of a cutting member showing a scarfing chip removal apparatus according to the present invention, respectively

Figure 7 is a cross-sectional view of the detection unit showing the scarfing chip removal apparatus according to the present invention

Figure 8 is a state diagram according to the pressure change of the shim (Shim) and the nozzle according to the cast iron angle showing the scarfing chip removal apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ... detector 230 ... cylinder

110 Burner 240 Horizontal turntable

120 ... detector 300 ... base

130 ... cylinder 310 ... support plate                 

140 ... support 320 ... electromagnet

200 ... actuator 330 ... gear

210.Cutting member 333.Worm gear

220 ... transport member

The present invention relates to a scarf chip removal device, and more particularly, by automatically performing a series of processes for detecting and removing the state of the chip flowed on the cutting surface after the scraping operation, so as to quickly and easily remove the chip The present invention relates to a scarfing chip removing device.

In general, as shown in Figures 1 and 2, as a main process of the steelmaking process in the steel mill, continuous casting process for producing cast steel of a certain standard by drawing-cooled molten steel contained in the ladle through a rectangular mold (mold) In order to remove defects on the surface of the cast steel produced by the process must be followed by a scarfing (Scarfing).

The scarfing operation is a mold sprayed on the surface of the molten metal to prevent air bubbles or solidified from remaining inside the surface during the solidification process of the molten iron during the solidification of the molten steel to remain in contact with the air. It refers to the work of removing impurities such as powder from the surface.                         

When the scarfing is completed in this way, the cast steel 10 is transported along a roll table, in which the transport method is a wire rope 16 which draws a carriage 15 with a wheel and each carriage 15 by a motor 14. ) Is operated to the end of the roll table and the hydraulic cylinder (not shown) is operated to be located on the cross-transfer table 20, which is the workbench while lifting the cast 10, during which the cast 10 is twisted Eccentricity was frequent.

On the other hand, the work site is provided with a scarper machine 13 to remove the impurities by continuously melting and oxidizing the surface of the cast steel by spraying high-pressure oxygen in the preheated upper edge of the cast steel to perform the above scarfing operation. Doing.

However, due to the characteristics of the scarper machine, preheating starts from the upper edge of the slab in order to cause continuous molten oxidation reaction. Afterwards, the chip 11 that flows irregularly over a certain length is produced.

Since the chip 11 is rolled over and overlapped with the surface of the coil in the rolling process, which is a post-process, it cuts a large portion of the rolled coil so that the quality is reduced and the production rate is reduced due to a decrease in the real rate. do.

In order to prevent this, as shown in Figure 2, the operator is removed by the air tools 12, such as chisels, hammers, shovels, and compressed air to move to the post-process and this series of work is carried out by manual, The chip removal work is a risk of safety accidents such as delay of working time and difficulty of weighting cast iron, and of course, burns due to work close to high temperature cast, face injury due to scattering of chip fragments, and eye damage. There were various problems with the lighting.

The present invention is to improve the above-described various problems, the purpose of which is to prevent the manual removal of the chip of the head portion of the cast steel and to perform the operation regardless of the twisted cast steel, as well as to prevent various risks The task is to provide a scarfing chip removal device that is quick and easy.

As a technical configuration of the present invention for achieving the above object, in the scarfing chip removal apparatus,

A detector configured to detect an inclined state of the cut surface of the cast steel, and a burner spaced apart from each other by heating the chip and the cast steel;

An operating unit including a cutting member fixed to the lower part of the sensing unit and removing a chip, a transfer member inserted and moving along a guide rail, and a support plate on which a cylinder for operating the transfer member is fixed;

And a base part formed on the lower part of the operating part, the base part including a gear, a motor, an electromagnet, and a supporting plate having an insertion hole into which the members are inserted to rotate the operating part and the sensing part. To provide a scarfing chip removal device, characterized in that configured to remove.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing a scarfing chip removal apparatus according to the present invention; Figure 4 is an assembled perspective view showing a scarfing chip removal apparatus according to the present invention; Figure 5 shows a scarfing chip removal apparatus according to the present invention 6 (a) and 6 (b) are cross-sectional views showing an embodiment of a cutting member showing a scarfing chip removing device according to the present invention; and FIG. 7 is a scarfing chip according to the present invention. Figure 8 is a cross-sectional view of the detection unit showing the removal device; and Figure 8 is a state diagram according to the pressure change of the shim and the nozzle according to the slab angle showing the scarfing chip removal apparatus according to the present invention; Sensing unit 100 for detecting the operation, the operation unit 200 is installed on the lower end of the detection unit 100 to perform the cutting operation of the chip 410, the detection unit 100 and the operation unit 200 ) Is installed at the bottom of the operating unit 200 to rotate from the top The base portion 300 is included.

As shown in FIGS. 3 to 4, the sensing unit 100 includes a support piece 140 having a support height of a predetermined height perpendicular to the left and right sides below the horizontal support plate, and in front of the support piece 140. It is positioned and operated by the burner 110 and the cylinder 125 installed in front of the burner 110 is installed to move in a forward and backward direction connected to the cylinder 130 and detect the inclined state of the cast steel 400 The detection unit 120 is installed so as to.

The support piece 140 is provided with a guide rail 141 at regular intervals so that the burner 110 moves forward and backward on the upper surface of the support piece 140, and pins the cylinder 130 at the rear. The bracket 142 is formed to be fixed to 143.

As shown in FIG. 5, the burner 110 installed on the upper surface of the support piece 140 is supplied with fuel gas and oxygen in a width direction on a front surface thereof to form a gas nozzle 114 to ignite a flame. An accommodating groove 113 is formed at the lower end of the gas nozzle 114 to accommodate the detection unit 120. A coupling hole 111 is formed at the rear thereof to engage the cylinder, and a bottom thereof corresponds to the guide rail 141. Guide groove 112 is formed.

As shown in FIG. 7, the detection unit 120 installed at the front of the burner 110 includes a detection lever 121 rotatable from side to side to detect a twisted inclination of the cast steel 400, and the detection lever 121. ) Shim (129) having a bearing (122a, 122b) is rotated to form a rotating shaft and inserted into the upper and lower parts, and the shim (129) and the lower bearing (122b) is built into An arm 123 having an insertion hole 124 formed therein, an air nozzle 126 inserted into both sides of the arm 123 to adjust pressure, and connected to one side of a rear surface of the arm 123 and the arm 123. ) Is composed of an air cylinder 230 for moving back and forth, and is inserted into the receiving groove 113.

Here, the shim 129, the bearing (122a) (122b) is coupled up and down and has a shaft (129a) having a groove (129c) on the top surface, and installed in 180 ° left and right while having an outer diameter larger than the axis in the center It consists of a half moon-shaped pressure control piece (129b) having a cross section perpendicular to the point passing through the injection zone of the air nozzle.

The operation unit 200 fixed to the lower portion of the detection unit 100, the horizontal rotary plate 240 is fixed to the upper surface of the guide rail 241 at a predetermined interval, and the connecting bar in front of the horizontal rotary plate 240 ( A cutting member 210 interconnected by 212 and formed of a plurality of cutters 210a and 210b to remove the chip 410 and an insertion groove 226 in front of the cutting member 210 may be inserted. It is formed and connected to the conveying member 220 and the rear of the conveying member 220 formed with a guide groove 227 at the bottom to move forward and backward along the guide rail 241 to the conveying member 220 The cylinder 230 is fixed to the fixing bracket 242 formed on the upper surface of the horizontal rotating plate 240 to be moved by the pin 243 to move in the front, rear direction.

The cutting member 210, a blade is formed on the front surface and the through hole 211 is formed so that the connection bar 212 penetrates the left and right sides of the main body, respectively, the rear surface of the insertion groove 226 of the transfer member 220 A plurality of inner cutters 210a formed to protrude so as to be inserted into the upper portion, the limit switch 223 installed on one side of the transfer member 220, and the limit switch bar 228 protruding so as to react to the outside of the left and right sides. It consists of the cutter 210b.

The transport member 220 into which the cutting member 210 is inserted has a storage space of the cutting member 210 having an open front, and a spring to insert the rear surface of the cutting member 210 into the front of the storage space. An insertion hole 226 having a built-in 222 is formed, and a through hole 224 is formed at one side of the rear surface thereof so that the limit switch bar 228 formed at the rear side of the outer cutter 210b passes therethrough. The limit switch 223 is attached to one side of the rear surface so as to sense the limit switch bar 228.

The base part 300 installed below the operation part 200 is formed of a horizontal support plate 310 having two insertion grooves 311 and 312 formed on an upper surface thereof, and the insertion groove 311 is operated. Gear 330 coupled to the bottom of the horizontal rotating plate 240 with a screw 334 to rotate the unit 200 and the sensing unit 100, the worm gear 333 and the drive motor 336 and the reducer connected thereto A 335 is inserted and installed, and a short axis 332 is vertically formed at the bottom of the insertion groove 311 to be coupled with the hollow 331 formed in the gear 330, and the insertion groove 312 is rotated. The electromagnet 320 is installed to stop the horizontal rotating plate 240 is inserted.

In addition, the horizontal rotating plate 240 is made of ferrous metal to react to the magnetism of the electromagnet 320 or adhere the ferrous metal to the bottom.

Referring to the operation and effect of the present invention made of such a configuration as follows.

After the scarfing operation, the cast steel is transferred to a cross feed where chip removal is performed.

When the cast steel 400 arrives at the test position, the sensing unit 100 starts to operate to detect the twist of the cast steel 400. The operation process is as follows.

As air is supplied to the cylinder 130 of the sensing unit 100, the arm 123 connected to the end and the sensing lever 121 protrude from the receiving groove 113 in which the sensing unit 100 is accommodated and is in close contact with the cast steel 400. .

As shown in FIG. 8 (b), if the cast steel 400 is not twisted, the angle of the sensing lever 121 and the shim 129 connected thereto is maintained so as to maintain 90 °. Since the pressure of the air supplied through the installed pressure regulator 128 does not change, the pressure switch 127 does not operate, and the motor 336 of the base unit 300 connected thereto does not operate, so that the operation unit 200 rotates. It will not be.

However, as shown in Fig. 8A or 8C. If the slab 400 is in a twisted state, the sensing lever 121 is rotated by the twisted angle in the process of being in close contact with the cutting surface of the slab 400 and the shim 129 connected thereto is also the same. Will rotate at an angle.

The rotated shim 129, the front of the nozzle 126 on one side is opened to bring a sudden pressure drop, and at this time the pressure switch 127 of the lowered pressure is activated, the motor 336 is rotated to The rotational force is transmitted to the worm gear 333 through the reducer 335 to rotate the gear 330 and slowly rotate the operating unit 200 about the short axis 332.

The sensing unit 100 connected thereto also rotates along the rotating operation unit 200, and the left and right pressures are maintained in the same state as the initial state while the angle difference between the sensing lever 121 and the cutting surface of the cast steel 400 is removed. When the contact of the pressure switch 127 is cut off and the motor 336 is stopped and at the same time, the current is supplied to the electromagnet 320 of the base 300 to fix the magnet 240 which rotates slowly while being magnetized. .

On the other hand, when the cast piece 400 in the opposite direction, the sensing unit 100 is operated as described above and the shim 129 is rotated in the opposite direction, so that the pressure switch 127 of the opposite side is activated and the motor 336 is reversed to be fixed while eliminating the angle difference with the cast (400).

As described above, when the motor 336 is not driven, that is, when the torsion is not detected, the chip removing operation is performed.

If the twist of the cast steel 400 is not detected, the air is supplied to the suction side of the cylinder 125 in reverse to accommodate the arm 123 and the detection lever 121 in an initial state, and the rear of the burner 110. The solenoid valve 131 for supplying air to the cylinder 130 located at is opened while the air is supplied to the cylinder and the burner 110 is advanced while the cylinder 130 is operated.

As shown in FIG. 5, when the burner 110 moves forward, the solenoid valve 112 for supplying gas and oxygen is opened and ignited to intensively heat the upper portion of the cast steel 400.

In this case, the ends of the chip 410 are melted and removed, and the chips having a predetermined height are spaced apart from each other by a difference in the degree of thermal expansion with the slab 400 to be easily cut by the cutting member 210.                     

As described above, when the chip 410 is sufficiently spaced apart from the cast steel 400, the solenoid valve 131 operates to the suction side of the cylinder 130 of the sensing unit 100 to move the burner 110 back to the initial position. At the same time, the solenoid valve 231 is opened and the cylinder 230 is operated so that the transfer main body 220 moves along the guide rail 241.

As the transfer member 220 is advanced, the end of the cutting member 210 installed in front of the transfer member 220 comes into contact with the cutting surface of the cast member, and is mounted in the insertion hole 226 of the transfer member 220. Spring 222 is in close contact with the cutting member 210 to the cutting surface with a suitable pressure.

In this case, the limit switch bar 228 formed at the end of the cutting member 210a has a through hole of the limit switch 224 formed on the rear surface of the transfer member 220 according to the contact strength between the slab 400 and the cutting member 210. At the time of drawing out of 224, the limit switch 223 installed at the rear of the transfer member 220 senses and blocks the solenoid valve 231 to stop the transfer member 220.

As shown in Figure 6 (a) to 6 (b), when the limit switch 223 is operated, the hydraulic pressure is cut off to the cylinder (not shown) installed in the cross-feed carriage 20 and the carriage 15 is lowered The supporting slab 400 was also lowered, so that the cutting members 210 which were in contact with the cutting surface of the slab scraped down the lower slab 400 at a uniform pressure.

In this process, the chip 410 covering the slab cut surface and flowing down is completely separated.

When the chip 410 is removed, the repulsive force generated in each cutting member 210 is blocked by the connection bar 212 penetrating the main body of the cutting member.

On the other hand, when the cast steel 400 is completely lowered on the cross feed table 20, the air flows in the reverse direction of the solenoid valve 231 and the cylinder 230 is sucked, thereby moving the conveying member 220 for the first time Rewind to the position of and wait for the next operation.

As described above, a chip removal process in which 30% of the entire process is required by the manual process by removing the chip 410 generated on the cutting surface of the scarfing completed slab 400 in the process of moving to the cross transfer table 20. In short time and at the same time, the automation speed is improved, the work speed is improved, the work load is eliminated, and the safety accident by the scattering chip is prevented.

Thus, according to the scarfing chip removal apparatus according to the present invention, by performing a series of processes to automatically detect and preheat and remove the state of the chip and the slab flowed to the slab cutting surface after the scarfing operation, according to the automation Work load is eliminated, work time is shortened, work is easy and safe chip removal work is excellent effect.

While the invention has been shown and described with respect to particular embodiments, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (5)

Scarf chip removal device, A detector 100 configured to detect an inclined state of the cut surface of the cast piece, and a burner 110 spaced apart from each other by heating the chip 410 and the cast piece 400; A cutting member 210 fixed to the lower portion of the sensing unit 100 and removing the chip 410, a transfer member 220 into which the cutting member 210 is inserted and moved along the guide rail 241; An operation part 200 including a support plate 240 to which the cylinder 230 for operating the transfer member 220 is fixed; The insertion groove 311 is installed below the operating unit 200 and the gear 331 and the motor 336 and the electromagnet 320 and the members are inserted to rotate the operating unit 200 and the sensing unit 100. Scarf chip removal device, characterized in that configured to automatically detect and remove the chip formed in the head portion including a base portion 300 consisting of a support plate 310 formed) (312). The method of claim 1, wherein the detection unit 120, A sensing lever 121 rotatable from side to side to detect the twisted inclination of the cast steel 400; A shim 129 having bearings 122a and 122b coupled to the sensing lever 121 and rotating while forming a rotation shaft and inserted into upper and lower portions thereof; An arm 123 having an insertion groove 126 having a stepped portion for embedding the shim 129 and the lower bearing 122b; Air nozzles 126 and pressure switches 127 and pressure regulators 128 inserted into both sides of the arm 123 to sense pressure; And Scarring chip removal device, characterized in that consisting of; air cylinder (125) connected to one side of the rear of the arm (123) to move the arm 123 before and after. The method of claim 2, wherein the shim 129, A shaft 129a having a bearing coupled up and down and having a groove 129c formed on an upper surface thereof; And a half moon-shaped pressure regulating piece 129b having a cross section perpendicular to a point passing through the injection region of the air nozzle 126 installed at 180 ° left and right while having a larger outer diameter than the shaft 129a at the center thereof. Scarping chip removal device. The method of claim 1, wherein the cutting member 210, A plurality of inner cutters are formed on the front surface and through holes 211 are formed to penetrate the right and left sides of the main body 212, and the rear surface protrudes to be inserted into the insertion groove 26 of the transfer member 220. 210a; Scarf chip removal device characterized in that consisting of; the left and right outer cutter (210b) formed by protruding long limit switch bar 228 and the reaction to the limit switch 223 installed on one side of the transfer member 220; . The method of claim 1, wherein the base portion 300, A horizontal support plate 310 having two insertion grooves 311 and 312 formed on an upper surface thereof; Gear 330 is installed in the insertion groove 311 and screwed to the bottom of the horizontal rotating plate 240 of the operating unit 200 to rotate the operating unit 200 and the sensing unit 100 and here Connected worm gears 333 and drive motors 336 and reduction gears 335; A short axis 332 vertically formed to be coupled to the hollow 331 formed at the center of the gear 330 at a bottom surface of the insertion groove 311; Scarf chip removal device, characterized in that made in the insertion groove 312, the electromagnet 320 is installed to stop the rotating horizontal rotating plate 240.

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