KR20130017948A - Apparatus for cutting slab burr - Google Patents

Abstract

PURPOSE: A slab burr cutting device is provided to do not need an additional removal work after removing slab burrs and to minimize the number of maintenance works. CONSTITUTION: A slab burr cutting device comprises a shear beam(100), a cutting blade, balancing stoppers(500), guide bases(400), and a guide groove. The shear beam vertically moves and rotates in the lower part of a roller table where a slab is moved. The cutting blade is protruded from the exterior of the shear beam. The balancing stoppers are protruded from both sides of the exterior of the shear beam. The guide bases are arranged in both sides of the shear beam and have a flange horizontally extended toward thee shear beam. The guide grooves are formed on the guide bases to fit the balancing stoppers.

Description

Apparatus for cutting slab burr}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slab cutting snow removing device, and is a device for maintaining the balance of the slab cutting snow removing device and mitigating impact before and after slab cutting.

In general, slabs are semi-finished products which are materials for thick plate and hot rolling processes, and are manufactured in a block shape having a predetermined thickness and width by injecting liquid molten steel into a mold of a continuous casting machine and cooling and solidifying the slab.

These slabs are cut to a certain length while going through a torch cutting machine, and the cut slabs S are transferred to a subsequent process through a plurality of feed rolls. In subsequent processes, the slab is finalized into thick plates or hot steel sheets using equipment such as a thick plate mill or a hot mill.

In the cutting process of the slab S, since the metal slab S is cut by a high temperature / high pressure torch cutting machine using oxygen and gas, the lower surface of the cutting portion of the slab S is cut (burr); B) is fusion formed. If the cutting tongue (B) is not completely removed before the slab (S) is transferred to the subsequent process, the cutting tongue (B) may damage the equipment of the subsequent process or deteriorate the quality of the product manufactured through the subsequent process. There was a problem.

Therefore, in order to solve the above problems, before cutting the slab (S) cut with a torch cutting machine to a subsequent process, as shown in Korean Laid-Open Patent Publication 2002-0097349, the cutting blade (cutting knife) and the like is removed The process of removing the cutting tongue B formed in the slab using the apparatus is performed. The cutting blade (B) is pushed to the cutting blade to be removed by close or close to the cutting blade on the lower surface of the slab is horizontally conveyed.

That is, when the feed roller R is driven so that the slab S enters the slab cutting device through the feed roller table T, the cutting surface of the slab in the forward direction (hereinafter referred to as 'head') and The slab cutting tongue formed at the lower side of the slab's backward direction cut surface (hereinafter, referred to as a 'tail') is in close contact with the shear cap by raising the shear beam. When the share cap is in close contact with the slab cutting tongue (B) of the slab head and the tail lower portion, the feed roller (R) drives the forward or backward drive to remove the slab cutting tongue (B).

As the shear beam rises and closes to the slab, the feed roller cable is removed while driving forward and backward, but only when the facility management is made to maintain the balance before and after the shear beam up / down operation. During the beam ascending, there is no impact caused by hitting the bearing block of the shear beam and the upper surface of the guide base, which is the deck, so that the cutting snow is completely removed.

However, as shown in FIG. 1, which shows the side of the slab cutting tongue removing device, the shear beam 100 is raised, and the front and rear balance of the slab cutting tongue is not corrected by the cutting blade 101 as well as the deck-in during the shear beam rising. As the bearing block 110 hits the upper surface 410 of the guide base, an impact 10 is applied to the bearing block 110, which causes damage to the bearing block 110 due to fatigue accumulation in the facility. As a result, the cause of the share beam up-down failure is provided, and there are phenomena such as facility maintenance factors, emergency operation, and inefficient facility management, and thus, it is impossible to produce high quality products. In addition, since the cutting snow removal is not made smoothly at the time of the subsequent slab cutting snow removal, because the poor cutting snow removal slab is one after another, there is a problem that the cut snow removal bad slab needs to be partially repaired again.

Technical problem of the present invention relates to a slab cutting snow removing device for removing the cutting snow of the slab. In addition, the technical problem of the present invention is to maintain the balance before and after the shear beam up / down operation of the slab cutting snow removal apparatus. In addition, the technical problem of the present invention is to minimize the impact transmitted to the bearing block before and after the shear beam up / down operation of the slab cutting snow removal apparatus.

Embodiment of this invention is a slab cutting tongue removal apparatus which removes the cutting tongue of a slab, Comprising: The shear beam which raises and lowers and rotates up and down at the lower side of the roller table which a slab is moved, and protrudes from the outer diameter surface of the said shear beam. A cutting base, a balance maintaining stopper protruding from the outer diameter surfaces of both sides of the shear beam, a vertical body positioned at both sides of the shear beam, and a guide base having a top surface extending in the shear beam direction as a top surface; And a guide groove through which the flange region at a position corresponding to the balance maintaining stopper passes.

The balance maintaining stopper may include a stopper body having one surface and the other surface, a through hole penetrating through one surface and the other surface of the stopper body body, and a through hole formed on the one surface, and the outer diameter surface of the share beam and the body body. It includes a bolt for fastening the other side of the screw.

Further, a cushioning body for alleviating the impact of contact with the flange when the bearing block is raised is provided in the flange region at a position corresponding to the bearing block.

The shock absorbing body includes a shock absorbing body having a columnar body having an upper surface and a lower surface, a clamp for coupling the shock absorbing body with the upper surface of the flange, a bar-shaped piston projecting from the shock absorbing body, and a bottom of the piston. A shock absorbing bumper coupled to the surface and having a larger area than the bottom surface, and surrounding the outer diameter of the piston, and a spring having an elastic force between the lower surface of the buffer body and the shock absorbing bumper.

According to the embodiment of the present invention, the balance can be maintained unchanged before and after the shear beam up / down operation of the slab cutting device by providing the balance stops at both outer diameters of the shear beam. In addition, by providing a buffer body, the impact of the guide base and the bearing block can be alleviated before and after the shear beam up / down operation of the slab cutting device. In addition, according to the embodiment of the present invention, the management of the slab cutting snow removing device is made smoothly to extend the life of the equipment, it is possible to completely remove the slab cutting snow. It also eliminates the need for additional removal after slab removal, minimizing emergency pre-blocking and maintenance work. It can also have the effect of producing high quality products and improving post-process quality.

1 is a view showing a state that a conventional shear beam is impacted by contacting the flange of the guide base.
2 is a view showing a state of removing the cutting snow using the slab cutting snow removal apparatus according to an embodiment of the present invention.
Figure 3 is an illustration showing an exploded view of the slab cutting snow removal apparatus according to an embodiment of the present invention.
Figure 4 is a view showing a cross-sectional view in the X direction of the slab cutting snow removal apparatus according to an embodiment of the present invention.
5 is a view showing a cross-sectional view in the Y direction of the slab cutting snow removal apparatus according to an embodiment of the present invention.
6 is a diagram illustrating a balance maintaining stopper according to an embodiment of the present invention.
7 is a view illustrating a state in which a balance maintaining stopper is combined with a share beam according to an embodiment of the present invention.
8 is a view showing a buffer according to an embodiment of the present invention.
9 is a diagram illustrating a state in which the share beam is raised to achieve balance maintenance and shock relaxation according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. Wherein like reference numerals refer to like elements throughout.

2 is a view showing a state of removing the cutting snow using the slab cutting snow removal apparatus according to an embodiment of the present invention, Figure 3 is an exploded view of the slab cutting snow removal apparatus according to an embodiment of the present invention. Figure 4 is a view showing a cross-sectional view in the X direction of the slab cutting snow removal apparatus according to an embodiment of the present invention, Figure 5 is a cross-sectional view in the Y direction of the slab cutting snow removal apparatus according to an embodiment of the present invention. It is an illustration.

Hereinafter, the description below will be described with reference to the 'slab' as the object to be cut, but may include all of the semi-finished billet (bloom), bloom (bloom) and the like manufactured in various shapes through the playing process.

The slab cutting tongue removing device (deburrer) is a device for removing the cutting tongue which is formed to protrude on the lower surface of the cutting portion of the slab (S), prior to the description of the embodiment of the present invention, will briefly describe the driving state of the cutting tongue removing device. . As shown in FIG. 2, when the feed roller R is driven so that the slab S enters the slab cutting device through the feed roller 200, the cutting surface of the slab in the forward direction (hereinafter, referred to as “head”). And the slab cutting tongue formed at the lower side of the cutting direction side cutting surface (hereinafter referred to as 'tail') of the slab is in close contact with the cutting blade (share cap) 101. The cutting blade 101 is raised or lowered as the shear beam 100, which is a piston support container, and the plurality of pistons 102 formed in the shear beam are raised or lowered. The share beam 100 is vertically raised or lowered along the guide base 400 by the bellows vertical cylinder 300 formed at one side and the other side in the longitudinal direction. When the cutting blade 101 is in close contact with the slab cutting tongue (B) of the slab head and the tail lower, the slab cutting tongue (B) is removed while the feed roller 200 is driven forward or backward.

Referring to FIG. 3, the cutting tongue removing device includes a shear beam 100 that is moved up and down and rotates from the lower side of the roller cable to which the slab is moved, and a cutting blade 101 protruding from the outer diameter surface of the shear beam 100. ), The body chain balance stopper 500 protruding from the outer diameter surfaces of both sides of the share beam 100, located on both sides of the share beam and vertically guiding the share beam 100 vertically and horizontally extending in the share beam direction. And a guide groove 401 through which a flange area at a position corresponding to the balance maintaining stopper 500 passes.

In detail, the share beam 100 is a columnar body having an outer diameter surface, and moves up and down on the lower side of the roller table to which the slab is moved. The cutting edge of the slab is removed by the cutting blade formed by protruding from the outer diameter surface of the share beam 100.

Rotating shafts 102 protrude from both ends of the longitudinal direction of the shear beam 100, respectively. The rotating shaft 102 on both sides is equipped with a bearing block 110 for supporting the rotating shaft for easy rotation, and one end of the share beam 100 is connected to a reducer (not shown) for reducing the rotational speed, A motor (not shown) generating a rotational force is connected to the low speed of the reducer.

In the slab cutting snow removing device, the guide base 400 perpendicular to both sides of the roller table is correspondingly fixed to raise and lower the share beam 100 and the motor (not shown), and bellows vertical cylinders are respectively disposed on the inner lower end thereof. 300 is inserted into each guide base 400 to couple the supporting plate 420 to the rod, and a bearing block for supporting a motor (not shown) and the share beam 100 on the supporting plate 420 ( 110 are each seated.

Therefore, the operation of the vertical bellows cylinder 300 is to raise and lower the share beam 100 and the motor (not shown) by lifting the bearing blocks 110 through the support plate 420, respectively.

For reference, in order to control the operation position of the bellows vertical cylinder 300, the upper limit switch and the lower limit switch are horizontally coupled to the guide base 400 on one side to raise the height lifted by the bellows vertical cylinder 300. To control.

The reducer and the motor for rotating the shear beam 100 during the lifting and lowering operation are located on the outer side of the guide base 400, and the rotational force is applied to the shear beam 100 while being raised and lowered like the shear beam 100. To provide.

On the other hand, when the shear beam 100 is raised to remove the cutting tongue of the slab, the slab is moved forward and backward by the roller to cut the cutting tongue, the shear beam 100 is lowered after the cutting tongue is removed. . As described above, the share beam is raised and lowered and cutting is performed. After the raising and lowering operation, in most cases, the front / back balance is not maintained and is inclined. This impinges on the cutting edge due to the slab back and forth for cutting, and thus the balance of the shear beam fastened to the cutting edge is not maintained.

The present invention includes a balance maintaining stopper 500 on the outer diameter surface of the share beam in order to maintain balance without tilting the shear beam before and after.

The balance maintaining stopper 500 protrudes from the outer diameter surfaces of both sides of the share beam, that is, the outer diameter surfaces of both edge ends of the share beam, respectively, and is a stopper that is a height pillar having one surface and the other surface as shown in FIG. 6. It consists of a body. A through hole 501 penetrating one surface and the other surface of the stopper body is formed, and the bolt 502 is inserted into the through hole formed on one surface to balance the outer diameter surface of the share beam 100 as shown in FIG. 7. Tighten the other side of the holding stopper 500 by screwing.

Therefore, as shown in FIG. 4, the balance maintaining stopper 500 is inserted into the guide groove 401 formed in the flange 410, which is the upper surface of the guide base, according to the rise of the share beam, and conversely, the down of the share beam 100. The stopper body is disengaged from the guide groove. The guide base is a vertical body which is located outside the ends of both sides in the longitudinal direction of the share beam and vertically guides the share beam. The guide base also has a flange that extends horizontally in the share beam direction as the top surface.

In the state of being inserted into the guide groove 401 formed in the flange 410 which is the upper surface of the guide base as the share beam is raised, the balance of the beam before and after the shear beam operation is maintained as it is by preventing the flow of the beam before and after the slab. can do.

On the other hand, the stopper body 500 is formed in the guide groove 401 is equal to or larger than the area of the stopper body 500 so that the stopper body 500 can be inserted into and removed from the guide groove according to the rise and fall of the share beam. Be sure to In addition, the stopper body 500 is formed so that the area of one surface of the stopper body body is smaller than the area of the other surface of the stopper body body, so that the stopper body body can be smoothly inserted into or removed from the guide groove. That is, the upper part of the stopper body body is rounded so that it is naturally inserted into the guide groove without obstacles when the share beam is raised.

On the other hand, as shown in Figure 3, both ends of the longitudinal direction of the shear beam 100 is provided with a rotating shaft 102, such a rotating shaft 102 is supported by a bearing block 110. The bearing block 110 supports the rotating shaft and smoothly rotates the shaft by receiving a load acting on the shaft. The bearing block 110 is raised by the elevation of the bellows vertical cylinder 300 inserted into the guide base 400, and thus the rotating shaft 102 and the share beam 100 supported thereon also rise.

However, when the bearing block 110 is raised, as shown in FIG. 1, the impact occurs by hitting the surface of the flange 410 extended horizontally from the top of the guide base. In order to minimize such an impact, an embodiment of the present invention, as shown in Figure 4, the shock absorber 600 to mitigate the impact of the contact with the flange when the bearing block 110 is raised, the contact when the bearing block is raised At the corresponding position of the flange.

As shown in FIG. 8, the shock absorber 600 has a shock absorbing body 601, which is a pillar having an upper surface and a lower surface, and includes a clamp 602 for coupling the shock absorbing body 601 with the upper surface of the flange. Equipped. The clamp 602 extends in a circular shape surrounding the bottom of the shock absorbing body, and fastens the shock absorbing body to the flange upper surface of the guide base. The upper surface of the flange of the clamp and the guide base is screwed and fastened by the clamp bolt 603.

The buffer 600 includes a piston 605 in the form of a bar protruding from the lower surface of the buffer body. The lower part of the piston is provided with a shock absorbing bumper 604. The shock absorber bumper 604 is a shock absorber coupled to the bottom surface of the piston and has a larger area than the bottom surface. The shock mitigation bumper 604 mitigates the impact when the bearing block raised with the share beam touches. The piston 605 is made of an elastic material. When an impact is applied to the shock absorbing bumper 604, the piston condenses and the elastic force of the spring absorbs the impact.

On the other hand, a spring 610 having an elastic force is provided between the impact relief bumper 604 and the lower surface of the shock absorbing body 601 to surround the outer diameter of the piston 605. By the elastic force of the spring 610, the bearing block can mitigate the impact when the guide base hits the bottom of the flange.

For reference, FIG. 9 is a diagram illustrating a state in which the share beam is raised. When the share beam is raised as shown in FIG. 9, the balance maintaining stopper 500 is inserted into the guide groove of the flange 410 of the guide base. It is possible to maintain the share beam balance even when the slab moves forward and backward. In addition, the bearing block 110 may be in contact with the shock absorber 600 to reduce the impact energy between the flange of the guide base and the bearing block.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

100: share beam 200: roller
400: guide base 410: flange
500: Balance keeping stopper 600: Buffer

Claims (8)

In the slab cutting snow removing device for removing the cutting snow of the slab,
A share beam that moves up and down and rotates from the lower side of the roller table to which the slab is moved;
A cutting blade protruding from the outer diameter surface of the share beam;
A balance maintaining stopper protruding from outer diameter surfaces of both sides of the share beam;
A guide base positioned on both sides of the share beam, the guide base having a flange extending horizontally in the share beam direction as an upper surface;
A guide groove through which a flange region at a position corresponding to the balance maintaining stopper passes;
Slab cutting snow removal apparatus comprising a. The method according to claim 1, wherein the balance maintaining stopper,
A stopper body having one side and the other side;
A through hole penetrating one surface and the other surface of the stopper body;
A bolt inserted into the through hole formed on the one surface to screw and fasten the outer diameter surface of the share beam and the other surface of the body;
Slab cutting snow removal device comprising a. The apparatus of claim 2, wherein an area of the guide groove is equal to or larger than an area of the stopper body. The cutting snow removing device according to claim 2, wherein the stopper body body has an area of one surface of the stopper body smaller than an area of the other surface of the stopper body. The cutting snow removing device according to claim 1, wherein the guide base is a vertical body for vertically guiding the shear beam. The method according to claim 1,
Rotating shafts each protruding from both ends of the longitudinal direction of the share beam body;
A bearing block supporting the rotating shaft;
Slab cutting snow removal apparatus comprising a. The slab cutting snow removing device according to claim 6, further comprising a shock absorber for relieving the impact of contact with the flange when the bearing block is raised, in the flange region at a position corresponding to the bearing block. The method according to claim 7, wherein the buffer,
A buffer body which is a pillar having an upper surface and a lower surface;
A clamp for coupling the cushioning body with an upper surface of the flange;
A bar-shaped piston protruding from the buffer body;
An impact relief bumper coupled to the bottom surface of the piston and having a larger area than the bottom surface;
A spring surrounding an outer diameter of the piston and having an elastic force between a lower surface of the shock absorbing body and the shock absorbing bumper;
Slab cutting snow removal apparatus comprising a.

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