KR0146801B1 - Apparatus for removing slab burr - Google Patents

Abstract

The present invention is to remove the cutting edge of the slab (Blade) with the blade (Blade) in the deburring machine, which is a performance correction facility, automatically remove the cutting edge placed on the blade to follow (後行) The present invention relates to an improved slab cutting automatic removal device for smoothly performing cutting operations of slab cutting.

The present invention is equipped with a pair of air cylinders immediately after the forward position of the lifting device, the operating rod of the air cylinder is equipped with a cutting tongue removing bar extending over the entire width of the slab, the air cylinder at the forward position of the lifting device It is operated to raise the cutting tongue removing bar when moving downward to the lowered position to provide a slab cutting tongue automatic removal device characterized in that the blow to remove the cutting tongue placed on the blade of the lifting device.

Description

Automatic slab cutting device

1 is an operating state diagram of a deburring machine showing the slab cutting snow removal process according to the prior art.

Figure 2 is a perspective view showing the overall structure of the slab cutting automatic removal device according to the present invention.

3 is a plan view of the slab cutting automatic removal device according to the invention mounted on the deburring machine.

Figure 4 is a side cross-sectional view showing the operating state of the automatic slab cutting device according to the present invention.

* Explanation of symbols for main parts of the drawings

5a, 5b: Air cylinder 7a, 7b: Operation rod

10: cutting snow removal bar 15a, 15b: fixed base

17a, 17b: vertical stand 20a, 20b: connecting rod

22a, 22b: Roller 30a, 30b: Air supply control device

33: bending portion 37: nozzle

40a, 40b, 40c: position detection sensor 120: lifting device

The present invention is to remove the cutting edge of the slab (Blade) with the blade (Blade) in the deburring machine, a performance correction facility, automatically removes the cutting edge placed on the blade to follow (행 行) The present invention relates to an improved slab cutting automatic removal device for smoothly performing cutting operations of slab cutting.

In general, a slab is cut as a gas torch when slabs are cut and produced to meet the demands of demand up to 230 mm thick, 820-2000 mm wide and 5500-12000 mm long. Do this. In this way, when the slab is cut as a gas torch, molten metal flows down from the cutting surface of the slab, thereby solidifying a burr. This cutting snow must be removed because it has a fatal adverse effect on the coil product during the rolling operation, this operation is performed in the deburring machine 100 as shown in FIG. The deburring machine 100 first stops the slab (S) reaches the slab cutting chamber removal position (Z) and stops, the clamp 112 of the clamping device 110 is lowered to rotate the slab (S) between the rotary roll (115). Fixed at, the lifting device 120 of the lower side of the slab (S) is operated to move from the standby position (120a) to the rising position (120b), the blade 125 formed on the upper surface of the lifting device 120 is slab In contact with the lower surface of (S), in this state the lifting device 120 moves from the raised position (120b) to the advanced position (120c) to remove the cutting tongue (P) formed on the lower surface of the slab (S). . In addition, a series of regular operations, which are moved downward from the forward position 120c to the lower position 120d and returned to the standby position 120a, are performed at the front end Sa and the rear end Sb of the slab S. Do the same for

However, the cutting tongue P of the slab S cut by the blade 125 in the process of moving from the raised position 120b to the advanced position 120c does not fall off from the blade 125 and is removed. The case that remains on the blade 125 is generated. In this case, when the cutting tongue of the trailing slab is removed, the cutting tongue placed on the blade may not be fixed to the bottom of the slab S so that the cutting tongue P may not be completely removed or partially removed. When the slab is not removed but the cutting edge is not removed, the slab is inserted into a hot stripping furnace (HOT STRIP MILL FURNACE) and rolled with a hot rolled coil and a cold rolled coil. It must be completely removed because it will cause a fatal adverse effect on the coil quality.

However, the confirmation of the removal of the cutting snow is not seen at all in the operator's view of the cab panel (PANEL) operation, and the confirmation of the cutting snow on the blade 125 is also not seen in the cab.

In addition, the closed-circuit monitor (MONITOR) cannot be installed due to the small space and high-temperature slab with repeated and detailed equipment operation, so that the operator can deburr the field to check and remove the cutting edge (P) on the blade 125. Since the machine 100 must be continuously checked for 24 hours and installed by pipes, there is a risk of workers getting stuck in facilities such as a worker's body or clothes due to burns or a narrow working space due to the high temperature of the slab. It is.

The present invention is to provide a slab cutting snow automatic removal device that is automatically operated to remove the cutting snow from the cutting blade is placed on the blade of the dungling machine as devised to solve the conventional problems as described above. There is this.

In order to achieve the above object, the present invention, in the lifting device of the deburring machine for removing the cutting tongue of the slab in the soft water installation of the steel mill, in the device for removing the cutting tongue placed on the blade, the operating rod is provided and the vertical movement is A pair of air cylinders configured to be capable of cutting and a cutting tongue removing bar connected at both ends thereof to the pair of air cylinder operating rods, wherein the pair of air cylinders have a width direction of the slab immediately after the forward position of the lifting device 120; And the cutting tongue removing bar is positioned below the cutting tongue placed on the blade when the lifting device moves downward from the forward position to the lowering position, thereby rising and hitting the cutting tongue, and the lifting device is lowered from the lowering position. By providing a slab cutting automatic removal device configured to descend when returning to the standby position.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

2 and 3 show a slab cutting automatic removal device 1 according to the present invention. In the slab cutting automatic removal device, a pair of air cylinders 5a and 5b are positioned in an upright position immediately after the forward position 120c of the lifting device 120, and the air cylinders 5a and 5b are operated. The rod 7a, 7b is equipped with a cutting tongue removing bar 10 extending over the full width of the slab S, and the air cylinders 5a, 5b have lower ends as hinges 12a, 12b, respectively. It is rotatably connected to the upper surface of the holder (15a) (15b). The holders 15a and 15b are fixed to the floor and have a b-shaped cross section, respectively, to one side of the holders 15a and 15b. Vertical stages 17a and 17b having a cross section are formed, and body portions 6a and 6b of air cylinders 5a and 5b are fitted into the vertical stages 17a and 17b, and the air cylinders 5a. One end of the a-shaped connecting rods 20a and 20b extending to the diaphragms 16a and 16b of the holders 15a and 15b is rotatably connected to the upper portions of the body portions 6a and 6b of the 5b. The other end of the a-shaped connecting rod (20a) (20b) is fitted with a roller (22a, 22b) in the center to be in close contact with the plates (16a, 16b) of the fixing (15a) (15b), Both edges 24a and 24b of the a-shaped connecting rods 20a and 20b fitted with the rollers 22a and 22b are supported on brackets 26a and 26b protruding from the diaphragms 16a and 16b, respectively. have. Therefore, the air cylinders 5a and 5b are respectively Body portions 6a and 6b are fitted to the mold vertical stands 17a and 17b, and upper ends of the body portions 6a and 6b are connected by connecting rods 20a and 20b and rollers 22a and 22b. Since it is supported by the diaphragms 16a and 16b, it is possible to move the cutting tongue removing bar 10 connected to the operating rods 7a and 7b vertically while maintaining the upright state during normal operation. The air cylinders 5a and 5b are automatically supplied with air pressure to the body parts 6a and 6b of the air cylinders 5a and 5b, respectively, on one side of the holders 15a and 15b on which the air cylinders 5a and 5b are mounted. Air supply control device 30a, 30b is provided, which is an air cylinder 5a when the lifting device 120 of the deburring machine 100 moves downward from the forward position 120c to the lowered position 120d. Operate 5b to provide pneumatic pressure so that the cutting snow removal bar 10 moves upward from the lower position. Then, while the lifting device 120 returns from the lowered position 120d to the standby position 120a, the cutting snow removing bar 10 is moved downward.

In addition, the cutting tongue removing bar 10 is formed in the center portion is a bent portion 33 toward the lifting device 120 side, as shown in Figure 3, made of a hollow stainless pipe member, both ends The coolant pipe 35 is connected to supply the coolant to the inside, and the coolant is configured to be discharged to the outside through the plurality of nozzles 37 formed in the cutting snow removing bar 10. Reference numerals 40a, 40b, 40c are position detection sensors.

The present invention as described above, when the slab (S) is stopped in the slab cutting removal position of the deburring machine 100, the clamp 112 of the clamping device 110 is lowered to rotate the slab (S) rolls (115) Fixed between, the lifting device 120 is operated on the lower side of the slab (S) to move from the standby position (120a) to the lifted position (120b), the blade 125 formed on the upper surface of the lifting device 120 In contact with the lower surface of the slab (S), in this state the lifting device 120 moves from the raised position (120b) to the forward position (120c) to remove the cutting tongue (P) formed on the lower surface of the slab (S) do. Then, when moving downward from the forward position (120c) to the lower position (120d), the air cylinder (5a) (5b) is operated to cut the snow removal bar 10 in the direction opposite to the moving direction of the lifting device 120 ), The cutting tongue removing bar 10 having the bent portion 33 in the direction close to the lifting device 120 in this process is the blade of the lifting device 120 as shown in FIG. If the cutting tongue (P) is placed on the (125), it will be hit by falling from the lifting device 120.

At this time, the coolant is supplied to the inside of the cutting snow removing bar 10 is injected to the outside through the nozzle 37, which is to prevent the deformation of the cutting snow removing bar 10 due to the high temperature of the slab (S). . In addition, as described above, the cutting tongue removing bar 10 from which the cutting tongue P is removed from the blade 125 of the lifting device 120 has the lifting device 120 moved from the lowered position 120d to the standby position 120a. As soon as it returns, it descends to its original position and keeps in the standby state. On the other hand, the cutting blade (P) attached to the lower surface of the slab (S) in the operation process as described above the blade 125 during the movement process from the raised position (120b) to the advanced position (120c) of the lifting device 120 When this is removed, the slab S can also be moved forward simultaneously with the forward movement of the lifting device 120.

This is a case where the deburring machine 100 is malfunctioning, and in this case, not only the position detecting sensors 40a and 40b for detecting the cut-off position Z, but also the position detecting sensor 40c for detecting excessive forward positions. As the excessive forward position of the slab S is detected, the operation of the air supply control devices 30a and 30b is stopped at the same time as the detection of the slab S of the position detecting sensor 40c and the cutting snow removing bar 10 is removed. Is controlled in advance to stop the rise of the air, but this control sequence is ignored so that the air supply control devices 30a and 30b are activated and the cutting tongue removing bar 10 is raised to hit the lower surface of the slab S. In this case, the air cylinders 5a and 5b as shown by the dotted lines in FIG. 4 so as to prevent breakage of the cutting tongue removing bar 10 and the air cylinders 5a and 5b by excessive impact force with the slab S. The diaphragm 16 of the fixing stand 15a, 15b centering on the hinge 12a, 12b provided in the lower end part. a) It is inclined to 16b side, and in this case, the body parts 6a and 6b of the air cylinders 5a and 5b are The rollers 22a and 22b, which are removed from the vertical risers 17a and 17b, respectively, and are mounted on the a-shaped connecting rods 20a and 20b, are rotated upward along the diaphragms 16a and 16b to move the air cylinders. The tilting of 5a) and 5b is operated.

According to the present invention as described above, when the slab is moved to the cutting tongue removing position of the deburring machine to remove the cutting tongue, when the cutting tongue is placed on the blade of the lifting device, while the lifting device is moved downward from the forward position to the lowered position A blow is made by the cutting snow removal bar which is lifted up by the air cylinder, and is dropped and removed from the lifting device. Therefore, when the cutting snow removal work of the following slab is not cut on the blade of the lifting device because the cutting snow does not exist, a good cutting snow removal work is made, the quality of the slab and the rolling coil is maintained accordingly To get the effect.

Claims (3)

In the apparatus for removing the cutting tongue (P) placed on the blade 125 in the lifting device 120 of the deburring machine 100 for removing the cutting tongue (P) of the slab (S) in the performance of the steel mill, Cutting rods having both ends connected to the pair of air cylinders 5a and 5b and the pair of air cylinder actuating rods 7a and 7b which are provided with actuating rods 7a and 7b and are configured to be movable up and down. A bar 10, wherein the pair of air cylinders 5a and 5b are mounted at a distance in the width direction of the slab S immediately after the advancing position 120c of the lifting device 120, and The cutting tongue removing bar 10 is positioned below the cutting tongue P placed on the blade 125 when the lifting device 120 moves downward from the forward position 120c to the lowering position 120d, and then lifts up the cutting tongue. Striking (P), and the lifting device 120 is configured to descend upon return from the lowered position (120d) to the standby position (120a) Automatic slab cutting removal device characterized in that. The air cylinder (5a) (5b) is a lower end portion is hinged (12a) (12b) is rotatably connected to the upper surface of the b-shaped holder (15a) (15b), the holding member (15a) ( On one side of 15b) Type vertical stands 17a and 17b are provided to fit the body parts 6a and 6b of the air cylinder, and one side end of the a-shaped connecting rods 20a and 20b to the upper part of the body parts 6a and 6b. Is rotatably connected, and the rollers 22a and 22b are supported by the diaphragms 16a and 16b at the other end of the a-shaped connecting rods 20a and 20b, so that the slab moves upwards. When hitting (S), the air cylinders 5a and 5b are tilted to the diaphragm 16a and 16b to prevent breakage of the cutting tongue removing bar 10 and the air cylinders 5a and 5b. Automatic slab cutting device characterized in that. According to claim 1, wherein the cutting tongue removing bar 10 is made of a hollow pipe member, a bent portion 33 toward the lifting device 120 side is formed in the center, coolant pipe 35 is formed at both ends The slab cutting snow automatic removal device, characterized in that configured to be discharged to the outside through a plurality of nozzles (37) connected to the outside.