KR20020006195A - confirmation apparatus for slab burr exclusion - Google Patents

Abstract

PURPOSE: An apparatus is provided which automatically confirms whether slab burr is removed or not on an online roller table at the rear side of a burr removal device for the burr that is formed at the lower part of the slab when cutting a slab produced from a continuous casting machine in a torch cutting machine. CONSTITUTION: In an apparatus for confirming whether slab burr is removed or not consisting of a slab deformation compensation device(A) compensating a deformation amount of a slab(300) so that whether a burr(400) is removed or not is confirmed, and a slab burr sensing device(B) confirming whether the burr(400) is removed or not, the slab deformation compensation device(A) comprises an air cylinder(7) operating a slab sensing roll(8) so that it is ascended or descended, sliding plates operating the slab sensing roll(8) so that it is smoothly ascended or descended, a bearing stand(1) and a cover(2) supporting a bearing block(3), a stopper(5) and a bolt member(5a) controlling an elevation of the slab sensing roll(8), and a base plate(6) on which the slab burr sensing device(B) is rested, and the slab burr sensing device(B) comprises sliding plates for smoothly ascending or descending a spring block(105) and a burr sensing roll(107) in which a spring is installed so that the burr sensing roll(107) is descended, a stand and a cover(101) supporting a support beam(103), a stopper(106) and a bolt member controlling an elevation of the burr sensing roll(107), and sensors sensing whether the burr is removed or not, and sensors controlling driving speeds of burr removal confirming devices and a roller(200).

Description

Confirmation apparatus for slab burr exclusion}

The present invention relates to a device for checking whether slab cutting tongue is removed, and more particularly, the slab cast in the steel making machine is a cutting tongue removing device (burr) formed by cutting the cutting tongue formed in the lower slab cutting surface when cutting in the torch cutting machine (burr) After removal by the removel device, the slab deformation compensation device and the slab cutting snow detection device are combined behind the cutting snow removal device to compensate for the amount of deformation of the slab by the slab deformation compensation device so as to accurately determine whether the cutting snow of the slab has been removed. The present invention relates to a device for automatically checking whether or not slab cutting snow is removed.

In general, the slab (cast) cast in the steel mill playing factory is cut in the torch cutting machine to a length of 5,500mm ~ 12,000mm according to the demand of the demand, the cutting edge 400 is formed essentially under the slab cutting surface After removal by the cutting snow removal device is transferred to the post-process.

However, the cutting tongue 400 formed essentially under the slab cutting surface is removed by the cutting tongue removing device, but the slab that is not completely removed according to the slab steel grade, the cutting snow removing device air pressure, and the state of the cutting snow removing device is removed. This product not only adversely affects the quality of the hot rolled steel plate or the surface of the thick plate during the rolling process after being charged to the furnace, but also adversely affects the quality. It will cause huge disruption to production. Therefore, the cutting tongue must be removed from the cutting tongue removing device, but if not removed, the prior art to check whether the removal of a plurality of sensing rods for detecting the cutting tongue 400 of the slab 300 as shown in FIG. In the presence of a cutting section of the slab according to the sensing unit 40 and the electrical signal provided from the sensing unit 40 having the 30 is in contact with the sensing rod 30 to operate the warning light 50 in the operating unit 60 It was a method of checking whether the cutting tongue was removed by turning on, but when the slab 300 was deformed downward, the cutting tongue was completely removed but the detection rod 30 was in contact with the sensing rod 30, thereby generating an incorrect signal that the cutting tongue was not removed. ) And the sensing rod 30 collides with the coil spring 70, so that there is a problem in that it is impossible to continuously and accurately check whether the cutting snow is removed.

Therefore, the present invention was devised to solve the above conventional problem,

The purpose of the present invention is to automatically check whether the slab cutting tongue is removed on the on-line roller table behind the cutting tongue removing device when cutting the slab produced in the steel making machine in the torch cutting machine.

1 is a perspective view of a conventional slab cutting snow removal detecting device.

Figure 2 is an exploded cross-sectional view of the slab deformation compensation device according to the present invention.

Figure 3 is an exploded cross-sectional view of the slab cutting snow detection apparatus according to the present invention.

Figure 4 is a front view of the slab deformation compensation device and the slab cutting snow detection device according to the present invention.

Figure 5 is a side view of the slab deformation compensation device and the slab cutting snow detection device according to the present invention.

Figure 6 is an air configuration for operating the slab cutting snow removal device according to the present invention.

Figure 7 is an operating state showing the device to check whether the slab cutting snow removal according to the present invention.

8 is a flowchart illustrating the operation of removing the slab cutting snow according to the present invention.

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

A: Slab deformation compensation device B: Slab cutting snow detection device

1100: Bearing stand 2101: Cover

3,102: bearing block 4a, 4b, 104a, 104b: sliding plate

5,106: stopper 103: support beam

105: spring block 107: cutting edge detection roll

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

Embodiment of the device for confirming the removal of slab cutting snow of the present invention,

Slab deformation compensation device (A) for compensating the amount of deformation of the slab 300 to confirm whether the cutting tongue 400 is removed and the slab cutting tongue detection device (8) to check whether the cutting tongue 400 is removed. In the confirmation device,

The slab deformation compensator (A) is a sliding plate (4a) for smooth operation during the up and down operation of the air cylinder (7) and the slab detection roll (8) to enable the slab detection roll (8) to operate up and down 4b);

A bearing stand 1 and a cover 2 supporting the bearing block 3;

A stopper (5) and a bolt member (5a) capable of adjusting the height of the slab sensing roll (8);

The slab cutting snow detection device (B) is made of a base plate 6,

The slab cutting snow detection device (B) is the slab cutting snow 400 of the spring block 105 and the cut snow detection roll 107 with a built-in spring 105a so that the cutting snow detection roll 107 can be lowered Sliding plates 104a and 104b for smooth operation during up and down operations;

A stand 100 and a cover 101 for blocking the support beam 103;

A stopper 106 and a bolt member 106a capable of adjusting the height of the cut snow detection roll 107;

It consists of a sensor (S1) (S2) for detecting whether the cutting snow is removed, the device for checking the removal of the cutting snow (①) (②) and a sensor (ⓐ) (ⓑ) (ⓒ) for controlling the driving speed of the roller 200. The bearing stand 1 is installed on both sides of the central part between the rear roller 200 and the roller of the cutting snow removing device, and the bearing block 3 to which the slab sensing roll 8 is coupled is mounted on both bearing stands 1. Inserted into and coupled with the air cylinder (7), the cover (2) is fixed on the bearing stand (1), the slab cutting snow detection device (B) is the base plate (6) of the slab deformation compensation device (A) It is fixed to the seat, when the slab detection roll 8 is in the lowered state, the height is lower than the roller 200, the two sets are installed so that the cutting snow detection roll 107 to face each other so as to detect the slab front part and the rear part, respectively. It is preferable.

2 is an exploded cross-sectional view of the slab deformation compensation device according to the present invention, Figure 3 is an exploded cross-sectional view of the slab cutting snow detection device according to the present invention, Figure 4 is a slab deformation compensation device and slab cutting snow detection device according to the present invention. 5 is a side view combined with the slab deformation compensation device and the slab cutting snow detection device according to the present invention, Figure 6 is an air configuration diagram for operating the slab cutting snow removal confirmation device according to the present invention. , FIG. 7 is an operational state diagram showing a device for removing slab cutting snow according to the present invention, and FIG. 8 is an operation flowchart of the device for checking whether slab cutting snow is removed according to the present invention.

The slab deformation compensator (A) of the slab cutting tongue removal device (1) (2) is located at the center inside the bearing stand (1) to operate the slab detection roll (8) up and down as shown in FIG. The air cylinder (7) is seated and the bearing block (3) is coupled to the top of the air cylinder (7), the rotation is prevented to smoothly operate the upper and lower slab detection roll (8) and wear of the bearing block (3) Possible sliding plate 4a is coupled to both sides of the bearing block 3 and grooved sliding plate 4b is fitted to the inner side of the bearing stand 1 in order to prevent the slab detection roll 8 from falling off and play. The stopper 5 and the bolt member 5a, which are fixed and adjust the height of the slab detection roll 8, are inserted into the holes drilled in the cover 2 to be fixed to the fixing bolt 2a on the bearing stand 1, The slab cutting device (B) can be The base plate 6 is welded to the lower surface of the arresting block 3.

And the slab cutting snow detection device (B) is a spring block 102 with a spring 105a built in the center of the stand 100 so that the cutting snow detection roll 107 can be operated up and down, as shown in FIG. ) Is fixed by the bolt 105b, the support beam 103 is coupled to the spring block 102, and the upper and lower smooth operation of the cutting detection roll 107 and the wear of the support beam 103 are prevented. A rotatable sliding plate 104a is coupled to both sides of the support beam 103, and a grooved sliding plate 104b is provided on the inner side of the stand 100 to prevent separation and play of the cutting detection roll 107. The stopper 106 and the bolt member 106a which are fixedly coupled and adjust the height of the cutting snow detection roll 107 are inserted into the holes drilled in the cover 101 and are fixed by the fixing bolt 101a on the upper part of the stand 100. Fixed bearing block 102 with cut-away detection roll 107 Support beam 103 is mounted on the top surface is fixed by a fixing bolt (102a), the slab cutting installation sensing apparatus (B) configured as above is fixed secured to the base plate 6 of the slab deformation compensation unit (A).

The slab cutting snow removal device (1) (2) is configured as described above is a bearing stand (1) on both sides of the central portion between the roller and the roller behind the snow removal device as shown in Figure 4 and 5 ), Respectively, and insert the bearing block (3) with the slab sensing roll (8) into both bearing stands (1) to engage with the air cylinder (7) and secure the cover (2) on top of the bearing stand (1). The slab cutting snow detection device (B) is seated and fixed to the base plate (6) of the slab deformation compensation device (A), and when the slab detection roll (8) is in the lowered state, the height is installed lower than the roller (200) and the slab front part and Two sets are installed so that the cutting-edge sensing rolls 107 face each other so that the tail parts can be detected respectively.

Then, the sensors (S10, S11, S20, S21) for detecting the up and down of the slab detection roll (8), the sensors (S1, S2) for detecting whether the cutting snow is removed, the sensors for detecting the slab (ⓐ, ⓑ, ⓒ ), And configure. Accordingly, when the slab 300 is detected by the slab detection sensors (ⓐ, ⓑ, ⓒ), a detection signal is generated to operate the slab cutting tongue removal device (①, ②) automatically and accurately and safely. To check.

Referring to the operation and effects of the device to determine whether the slab cutting snow removal having the configuration as described above are as follows.

Slab cutting tongue removal device (①, ②) is installed between the roll 200 and the roll for transporting the slab 300 behind the cutting tongue removing device, as shown in Figure 7 and 8 from the player The slab 300 cut in the torch cutting machine after casting is removed from the cutting tongue removing device by removing the cutting edge of the front surface of the slab 300 and transferred at a constant speed by the rollers 200, and the front surface of the slab is detected by the slab detection sensor (ⓐ). When it is detected, the solenoid valve 500 is operated to raise the slab detection roll 8 of the slab cutting tongue removal device ① and at the same time, the slab 300 is decelerated and transferred to the cutting tongue detecting roll 107. When the cutting snow detection roll 107 is lowered by the amount of contact, the sensor (S1) is sensed so that the slab front cutting snow 400 is not removed, and transmits a detection signal to the correction PLC, and the correction PLC corrects the P / C. in When the slab line is changed by B / C and the front surface of the slab is detected by the detection sensor (ⓒ), the solenoid valve 500 is activated to lower the slab detection roll (8) of the slab cutting removal device (①). And at the same time the slab 300 is transported at a constant speed.

Then, after removing the slab cutting edge and being transported at a constant speed by the rollers 200, the solenoid valve 500a is operated while the slab trailing edge is out of the slab detection sensor ⓑ to check whether the slab cutting edge is removed (②). When the slab detection roll 107 is in contact with the cutting edge detection roll 107 is lowered by the amount of contact, so that the sensor (S2) is detected, it is determined that the slab trailing edge (400) has not been removed to correct the detection signal to the PLC. And the slab line is changed by sending it to the correction P / C at the correction PLC and B / C at the correction P / C. When the trailing end of the slab is out of the slab detection sensor (ⓒ), the solenoid valve 500a is operated to cut the slab. The slab detection roll (8) of the removal confirmation device (②) is lowered and at the same time the slab 300 is removed in order to check whether the slab cutting snow removal is carried out.

If the solenoid valve 500 (500a) is operated to raise and lower the slab detection roll (8), but if the up and down sensors (S10, S11, S20, S21) are not detected, an alarm occurs and the slab is deformed downward. As the slab detection roll 8 descends by the amount of deformation in contact with the slab detection roll 8, the cutting snow detection roll 107 also descends along the cutting slab, so that the cutting snow removal can be accurately and safely removed.

In addition, since the cutting edge is not removed or the slab is deformed downward and contacted with the slab detecting roll 8, the air pressure which is immediately increased is released through the relief valve 501, thereby alleviating the impact and reducing the slab deformation compensator A. In order to adjust the slab detection roll 8 up and down speed, and to prevent unbalance and impact, speed regulating valves 502a, 502b, 502c and 502d are provided.

As described above, according to the present invention, the slab cast from the player is removed by the cutting tongue removing device formed essentially under the slab cutting surface when cutting in the torch cutting machine, but the slab deformation compensation device determines whether the slab is completely removed. It is possible to accurately and safely confirm by the equipped device to check whether the slab cutting snow is removed, thereby improving the post-processing quality, and preventing the accident of the equipment, thereby achieving the effect of significantly improving the operation stability and work productivity.

Claims (1)

Slab deformation compensation device (A) for compensating the amount of deformation of the slab 300 to confirm whether the cutting tongue 400 is removed and the slab cutting tongue detection device (8) to check whether the cutting tongue 400 is removed. In the confirmation device, The slab deformation compensator (A) is a sliding plate (4a) for smooth operation during the up and down operation of the air cylinder (7) and the slab detection roll (8) to enable the slab detection roll (8) to operate up and down 4b); A bearing stand 1 and a cover 2 supporting the bearing block 3; A stopper (5) and a bolt member (5a) capable of adjusting the height of the slab sensing roll (8); The slab cutting snow detection device (B) is made of a base plate 6, The slab cutting snow detection device (B) is the slab cutting snow 400 of the spring block 105 and the cut snow detection roll 107 with a built-in spring 105a so that the cutting snow detection roll 107 can be lowered Sliding plates 104a and 104b for smooth operation during up and down operations; A stand 100 and a cover 101 for blocking the support beam 103; A stopper 106 and a bolt member 106a capable of adjusting the height of the cut snow detection roll 107; It consists of a sensor (S1) (S2) for detecting whether the cutting snow is removed, the device for checking the removal of the cutting snow (①) (②) and a sensor (ⓐ) (ⓑ) (ⓒ) for controlling the driving speed of the roller 200. Bearing stands 1 are respectively installed on both sides of the central part between the rear roller 200 and the roller of the cutting snow removing device, and the bearing blocks 3 to which the slab detection rolls 8 are coupled are attached to the bearing stands 1 on both sides. Inserted and coupled to the air cylinder (7), the cover (2) is fixed on the bearing stand (1), the slab cutting snow detection device (B) to the base plate (6) of the slab deformation compensation device (A) When the slab detection roll 8 is lowered, the height of the slab detection roll 107 is lower than the roller 200, so that the two sets of cutting installation detection rolls 107 are installed to face each other. Device for checking whether the slab cutting snow is removed.