KR20120107344A - Duburrer - Google Patents

Abstract

PURPOSE: A deburring apparatus is provided to minimize the deformation of a piston due to a horizontal force during transfer of a slab by connecting a cutting knife to the piston and inserting the piston into an integrated cylinder housing that moves up and down. CONSTITUTION: A deburring apparatus comprises a support container(100) a plurality of cylinder housings(200), a plurality of sealing covers(300), a plurality of pistons(400), a plurality of cutting knives(500), and a fluid supply unit. A first space(E_1) is horizontally extended inside the support container, where a plurality of cylinder insertion parts(110) are formed in the extension direction of the first space. The plurality of cylinder housings are respectively inserted in the plurality of cylinder housings. A second space(E_2) is connected to the first space and is formed in the plurality of cylinder housings. The plurality of sealing covers close the open bottom of the plurality of cylinder housings. The plurality of pistons are inserted in the plurality of cylinder housings and moved up and down. The plurality of cutting knives contact or approach the underside of a slab being transferred and remove burr from the slab. The fluid supply unit supplies and recovers working fluid(G) in the first and second spaces.

Description

{Duburrer}

The present invention relates to an apparatus for removing cutting tackles. In particular, the present invention relates to a cutting device for removing slits formed at a slitting portion of a slab during slitting of a slab produced through a slitting process.

Generally, a slab is a semi-finished product that is a material for a thick plate process or a hot-rolling process, and is formed into 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 it.

This slab is cut to a predetermined length through a torch cutting machine 10 as shown in FIG. 1, and the cut slab S 'is fed through a plurality of feed rolls 20 to a subsequent process do. In the subsequent process, the slab (S ') is formed into a final product using a plate or hot-rolled steel plate by using a plate rolling mill or a hot rolling mill.

Since the metal slab S is cut into the high-temperature / high-pressure torch 12 using oxygen and gas during the cutting process of the slab S as described above, the cutting portion of the slabs S and S ' A burr (B) is fused to the lower surface of the tail portion in the first slab (S ') and the head portion in the latter slab (S). If the cutting mechanism (B) is not completely removed prior to transferring the slabs (S, S ') to a subsequent process, the equipment of the subsequent process may be damaged by the cutting mechanism (B) There has been a problem that the quality is deteriorated.

Therefore, in order to solve the above-mentioned problems, it is necessary to remove the slabs S 'from the slicers S' by using a cutter removing device equipped with a cutting knife or the like before the slab S 'cut by the torch cutting machine 10 is transferred to a subsequent process. S ') was carried out. That is, the cutting knife is brought close to or in close contact with the lower surface of the horizontally transported slabs S and S ', so that the cutting knife B is pushed by the cutting knife to be removed.

However, in the conventional cutting tool removing device, the cutting knife is connected to the upper end, and the piston, which is driven up and down, is inserted and supported inside the cylinder housing in which the piston is divided into the upper and lower parts, There has been a problem that deformation such as twisting or bending is easily caused by the force in the conveying direction. The deformed piston can not be smoothly moved up and down in the inside of the cylinder housing. As a result, the upward and downward driving distances of the piston can not be controlled smoothly, so that the cutting knife can not be brought close to or close to the lower surface of the slabs S and S ' there was. Therefore, the cutting stitches B formed on the slabs S and S 'can not be removed almost completely, so that the equipment failure of the subsequent process is continuously generated and the quality of the product produced through the subsequent process is deteriorated.

In addition, there is a problem that the service life of the cutting trowel removing device is reduced, and the time and cost required for repairing or replacing the piston are required, thereby reducing the efficiency of the cutting trowel removal operation.

The present invention provides an apparatus for removing cutting tackles.

The present invention provides a cutting tool removing device that can smoothly remove a cutting surface formed at a cutting portion of a slab when cutting a slab manufactured through a performance process.

According to an embodiment of the present invention, there is provided an apparatus for removing cutting tongues formed on a surface of a slab, the apparatus comprising: a first space extending horizontally inwardly of the slab; A plurality of cylinder housings which are inserted into the plurality of cylinder insertion openings and which have a second space communicated with the first space inside thereof; A plurality of pistons that are inserted into the plurality of cylinder housings and are vertically driven so as to protrude from an upper end of the plurality of cylinder housings, A plurality of cutting knives coupled to an upper end of the plurality of pistons, And a fluid supplier for supplying and recovering a driving fluid to the second space.

At least one communication hole communicating with the first space and the second space is formed through one side of the cylinder housing.

A guide rotation body is provided between an inner circumferential surface of the cylinder housing and a lower outer circumferential surface of the piston, and an inner circumferential surface of the cylinder housing protrudes inwardly to prevent the guide rotation body from being separated.

The cylinder housing is provided with a remaining portion of the piston, which is not included in the upper end portion of the piston,

Wherein the piston is formed to have a horizontal cross-sectional area smaller than a horizontal cross-sectional area of the piston head, the piston head partially protruding from an open upper end of the cylinder housing and having an outer surface in intimate contact with an inner circumferential surface of the cylinder housing, And a piston support connected to a lower surface of the piston head such that a surface of the piston support surface is positioned higher than a formation position of the communication hole.

A lubricant injection hole through which lubricant can be injected is formed through one side of the cylinder housing between an inner circumferential surface of the cylinder housing and an outer circumferential surface of the piston.

The sealing cover includes a deformation preventing plate coupled to a lower side of the cylinder insertion port and formed with a guide hole into which a lower end of the piston is inserted to guide the upward and downward movement of the piston and a lower end portion of the piston And a plurality of stopper bolts and washers which seal the lower side of the guide holes so as not to be caught.

According to the cutting apparatus of the present invention, the cutting knife for pushing and cutting the cutting pawls formed at the cut portion of the slab is connected to the vertically driven piston, and this piston is inserted into the integral cylinder housing, It is possible to prevent the piston from being easily deformed even if it is subjected to a force in accordance with the conveyance of the slab in the horizontal direction when the cut slits are removed. In other words, it is possible to prevent the breakage of the breakwater removal device, thereby preventing the occurrence of emergency operation, and it is possible to improve the productivity of the breakwater removal process without causing unexpected maintenance.

Therefore, it is possible to reduce the time and cost required for replacing or repairing the piston, and it is possible to improve the service life of the cutting disc remover which repeatedly drives the piston up and down. Further, the cutting knife can be easily brought into close contact with or close to the lower surface of the slab through the cutting tool removing device, so that the cutting surface formed on the lower surface of the slab can be almost completely removed, On the other hand, it is possible to prevent the quality of the product manufactured in the subsequent process from deteriorating.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a slab cut using a conventional torch cutting machine.
FIG. 2 is a view illustrating an installation state of a cutting tool removing device according to an embodiment of the present invention. FIG.
3 is an internal structural view of the cutting tool removing device shown in Fig.
FIG. 4 and FIG. 5 are driving state diagrams of a cutting removers according to the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To provide a complete description of the category. Wherein like reference numerals refer to like elements throughout.

FIG. 1 is a view showing a state in which a slab is cut using a general torch cutting machine, FIG. 2 is an installation state view of a cutting tool removing device according to an embodiment of the present invention, FIG. 3 is a cross- FIGS. 4 and 5 are driving state diagrams of the apparatus for removing a cutting tool according to the present invention. FIG.

Hereinafter, the 'slab' is described as an example in which the cutting is to be formed. However, it may include billets, blooms, etc., which are semi-finished products manufactured in various shapes through a performance process.

1 to 5, a deburrer 1000 according to an embodiment of the present invention includes a deburring unit 1000 for removing a slurry S, S 'from a surface of a slab S, S' An apparatus for removing a protruding cutting disc (B), comprising: a first space (E ₁ ) extending horizontally inward; a plurality of cylinder openings (Y ₁ ) extending in the extending direction 110) and the support container 100, which is formed through a top and bottom, are respectively inserted into the plurality of the cylinder insertion hole 110, a first space (E ₁₎ which is the second space (E ₂₎ is provided on the inner side is in communication with A plurality of sealing covers 300 coupled to the lower side of the plurality of cylinder insertion openings 110 to seal the open lower ends of the plurality of cylinder housings 200 and a plurality of cylinder housings 200 A plurality of pistons 400 that are inserted into the plurality of cylinder housings 200 to be vertically driven so as to protrude upward from the upper side of the pistons 400, A plurality of cutting knives 500 which are coupled to the upper end of the piston 400 and push or remove the cutting discs B in close contact with or close to the lower surfaces of the horizontally transported slabs S and S ' And a fluid supplier 600 connected to one side to supply and recover the driving fluid G to the first space E ₁ and the second space E ₂ .

The support container 100 is empty space that is formed in a cylindrical shape on the inner side, that is, the first space (E ₁₎ as the container is formed, a plurality of cylinder housing 200, a plurality of piston 400 is inserted so as to be vertical drive Lt; / RTI > The support vessel 100 is provided with a plurality of slabs S and S 'in a region where the slabs S and S' are conveyed so that the plurality of pistons 400 can be driven up and down toward the lower surface of the slabs S and S ' And is located directly under (lower). Although not shown, a lower portion of the support vessel 100 is provided with a support vessel support for stably supporting the support vessel 100 on the upper surface thereof. In the present embodiment, the support vessel 100 is formed as a closed cylindrical shape at both ends, and the first space E ₁ formed on the inner side is also formed as a cylindrical hollow space so that the driving fluid G flows into the first space E ₁ ) Of the support vessel 100 to minimize the deformation even if the inner pressure of the support vessel 100 is frequently changed. The heat generated from the high-temperature slabs S and S ' It is possible to prevent thermal deformation from occurring. Here, the shape of the support vessel 100 and the first space E ₁ formed inside the support vessel 100 are formed so as to have various vertical cross-sectional shapes such as an oval shape, a polygonal shape, Of course.)

A fluid supply device 600 is connected to one side of the support vessel 100 and a drive fluid G supplied and recovered through the fluid supply device 600 is supplied to the first space E ₁ of the support vessel 100, The plurality of pistons 400 supported to be vertically driven by the plurality of cylinder housings 200 can be simultaneously driven along the vertical direction (z direction). That is, a plurality of cutting knives 500 coupled to the upper ends of the plurality of pistons 400 can be closely attached to or close to the lower surfaces of the slabs S and S '.

When the driving fluid G is supplied and filled in the first space E ₁ of the support vessel 100 through the fluid supplier 600, the inner space of the cylinder housing 200, which communicates with the first space E ₁ , , that is, the second space (E ₂₎ is in a driving fluid (G) filled in, the rising is taken up the lower face of the piston 400 exposed to the second space (E ₂₎ it pushed. Conversely, when the driving fluid G is recovered by the fluid supplier 600, the piston 400 in which the driving fluid G filled in the first space E ₁ and the second space E ₂ is lifted out And is lowered to the home position. In this embodiment, a compressed gas is used as the driving fluid G for pushing the piston 400, but in addition, a liquid compressed oil or the like can be used as the driving fluid G as well.

A plurality of cylinder insertion openings 110 are formed in the support vessel 100 so as to extend vertically along the longitudinal direction (y direction) of the support vessel 100. The support vessel 100 is arranged so that the extending longitudinal direction (y direction) is the same direction as the width direction of the slabs S and S ', so that the cutting knife 500 is provided corresponding to the cut portion of the slabs S and S' May be arranged in a line. The cylinder housing 200 is inserted into each of the plurality of cylinder insertion ports 110 and the piston 400 is inserted into the cylinder housing 200. The upper end of the piston 400 is provided with a cutting knife 500 Therefore, the cutting disc B formed on the lower surface of the slabs S and S 'can be almost completely removed even through one-time transfer of the slabs S and S'.

The plurality of cylinder insertion ports 110 formed in the support vessel 100 includes an upper cylinder insertion port 110a formed on the upper surface of the support vessel 100 and a lower cylinder insertion port 110b formed on the lower surface of the support vessel 100 And one cylinder housing 200 is correspondingly inserted into the upper cylinder inlet 110a and the lower cylinder inlet 110b which are vertically opposed to each other.

The cylinder housing 200 has a hollow space, that is, a second space E ₂ , and is vertically and horizontally opened, and is formed in a cylindrical shape in this embodiment. That is, the inner space into which the cylinder 400 is inserted, that is, the horizontal section of the second space E ₂ has a circular shape. However, it is needless to say that the cylinder housing 200 is not limited to the cylindrical shape but can be variously modified according to the shape of the horizontal cross section of the piston 400. [ When the cylinder housing 200 is inserted into the cylinder insertion port 110, the lower end of the cylinder housing 200 is partially inserted into the lower cylinder insertion port 110b, and the upper end of the cylinder housing 200 is inserted into the upper And is inserted into the upper cylinder inlet 110a in a partially exposed state. The cylinder housing 200 formed to enclose the remainder of the piston 400 except for the upper end of the piston 400 which is integrally formed, that is, the upwardly projecting piston 400, is inserted into the support vessel 100, At least one communication hole 210 is formed in one side of the cylinder housing 200 so that the second space E _{2 on the} inner side can communicate with the first space E _{1 on} the inner side of the support vessel 100 . If the first space E ₁ and the second space E ₂ are not communicated with each other, even if the driving fluid G is supplied, the second space E _{2 can} not be filled in the second space E ₂ and is inserted into the cylinder housing 200 The piston 400 can not be raised.)

The lower end of the cylinder housing 200 is opened downward through the lower cylinder inlet 110b formed in the support vessel 100 with the cylinder housing 200 inserted into the support vessel 100. [ Accordingly, the sealing cover 300 for sealing the lower cylinder inlet 110b is coupled to prevent the piston 400 inserted into the cylinder housing 200 from being detached from the lower portion. The closed cover 300 is fitted to the lower cylinder inlet 110b formed in the lower surface of the support vessel 100 of the cylinder inlet 110 and the piston support 420 A deformation preventing plate 310 for guiding the piston 400 when the piston 400 is driven up and down and a deformation preventing plate 310 for preventing the lower end of the piston support 420 from being detached to the lower side of the guide hole 312. [ A plurality of stopper bolts 320 coupled to the lower surface of the plate 310 so as to be spaced apart and a washer 330 interposed between the plurality of stopper bolts 320 to prevent loosening.

The side surface of the piston supporter 420 is in contact with the inner circumferential surface of the guide hole 312 formed in the deformation preventing plate 310 to prevent the piston 400 from being driven in a direction other than the up- , Thereby preventing the piston 400 from being deformed, such as twisting or bending. Since the upper portion of the piston 400, that is, the piston head 410, is also in contact with the cylinder housing 200 in a state of being in contact with the upper and lower portions of the piston 400 when the piston 400 is driven up and down, . Accordingly, even when the slabs S and S 'move in the horizontal direction (x direction) orthogonal to the upward / downward movement of the piston 400, they are not easily deformed even if they receive the repulsive force for pushing and removing the cutting disc B.

The piston 400 is inserted into the cylinder housing 200 and is vertically driven. The piston 400 partially protrudes from the open top of the cylinder housing 200 and is in close contact with the inner circumferential surface of the cylinder housing 200. And is connected to the lower surface of the piston head 410 so that the lower surface of the piston head 410 is positioned higher than the forming position of the communication hole 210, 410) for supporting the piston support (420). The piston head 410 is in close contact with the inner circumferential surface of the cylinder housing 200 to prevent the piston 400 from swinging when the piston 400 is moved up and down and the piston support 420 is mounted on the inner circumferential surface of the cylinder housing 200 And the space surrounded by the inner circumferential surface of the cylinder housing 200, the outer circumferential surface of the piston supporter 420, the lower surface of the piston head 410 or the like is filled with the driving fluid G Is formed in the second space E ₂ . At least one communication hole 210 formed in one side surface of the cylinder housing 200 is connected to the piston 210 so as to lift the piston head 410 when the driving fluid G is filled in the second space E ₂ . Is formed at a position lower than the head (410). The communicating hole 210 is formed at a position lower than the piston head 410 so that the piston head 410 can be lowered while the driving fluid G is discharged in the second space E ₂ .

When a plurality of guide rotating bodies 220 are provided between the inner circumferential surface of the cylinder housing 200 and the outer circumferential surface of the piston supporter 420 in the cylinder housing 200, A step 230 protruding inward may be formed on the inner circumferential surface of the cylinder housing 200 in order to prevent the cylinder 220 from dropping downward or the like. When the piston 400 is driven up and down, the plurality of guide rotators 220 are rotatably driven to freely guide the up and down movement of the piston 400 more efficiently. In particular, Even when the lower portion of the piston support member 420 comes out to the upper side of the guide hole 312 formed in the deformation preventing plate 310, the lower portion of the piston support member 420, when the piston 400 is lowered, 312). ≪ / RTI > In this embodiment, a guide ball having a spherical shape is used as the guide rotation body 220. However, if the piston 400 can be smoothly driven up and down in the cylinder housing 200, a guide roll having a narrow width may be used .

A lubricant injection hole 240 is formed at one side of the cylinder housing 200 so that lubricant such as oil can be injected between the inner circumferential surface of the cylinder housing 200 and the outer circumferential surface of the piston head 410, .

A plurality of cutting knives 500 are coupled to upper ends of a plurality of pistons 400 projecting upward from the support vessel 100 and aligned in the same direction as the cut portions of the slabs S and S ' do. The plurality of cutting knives 500 are arranged so as to be free from gaps with adjacent cutting knives at the uppermost portion in close contact with the slabs S and S ' It is possible to prevent the disc B from being cut and remaining in the gap between the cutting knives 500. In this embodiment, the piston 400 and the cutting knife 500 are fastened in a threaded manner so that the cutting knife 500 can be easily replaced, and the angle between the piston 400 and the cutting knife 500 May be provided to change the joining angle of the cutting knife 500. That is, the cutting angle B of the cutting knife 500 can be adjusted according to the degree of fusion of the cutting blades B according to the types of the slabs S and S ', so that the cutting blades B can be smoothly removed.

As described above, according to the cutting apparatus of the present invention, the cutting knife for pushing and cutting the cutting tread formed at the cut portion of the slab is connected to the vertically driven piston, and the piston is housed in the integral cylinder housing So that it is possible to prevent the piston from being easily deformed even if it is subjected to a force in accordance with the conveying of the slab in the horizontal direction when the cut slits are removed. In other words, it is possible to prevent the breakage of the breakwater removal device, thereby preventing the occurrence of emergency operation, and it is possible to improve the productivity of the breakwater removal process without causing unexpected maintenance.

Therefore, it is possible to reduce the time and cost required for replacing or repairing the piston, and it is possible to improve the service life of the cutting disc remover which repeatedly drives the piston up and down. Further, the cutting knife can be easily brought into close contact with or close to the lower surface of the slab through the cutting tool removing device, so that the cutting surface formed on the lower surface of the slab can be almost completely removed, On the other hand, it is possible to prevent the quality of the product manufactured in the subsequent process from deteriorating.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the following claims.

100: support vessel 110: cylinder inlet
200: cylinder housing 210: communication hole
240: Lubricant injection hole 300: Sealed cover
310: deformation preventing plate 312: guide hole
320: Stopper bolt 330: Washer
400: Piston 410: Piston head
420: Piston support 500: Cutting knife
600: fluid feeder 1000: cutting tool removal device

Claims (7)

CLAIMS 1. An apparatus for removing a cutting gut protruding from a surface of a slab,
A support space in which a first space extends horizontally inwardly and in which a plurality of cylinder insertion openings are formed so as to penetrate up and down in an extending direction of the first space;
A plurality of cylinder housings inserted into the plurality of cylinder insertion openings and having a second space communicated with the first space therein;
A plurality of sealing covers coupled to a lower side of the plurality of cylinder insertion openings to seal the open lower ends of the plurality of cylinder housings;
A plurality of pistons inserted into the plurality of cylinder housings and vertically driven such that upper ends thereof project upward from the plurality of cylinder housings;
A plurality of cutting knives coupled to an upper end of the plurality of pistons; And
A fluid supplier connected to one side of the support vessel to supply and recover a driving fluid to the first space and the second space;
And a cutting device for removing the cutting tool. The method according to claim 1,
On one side surface of the cylinder housing,
And at least one communication hole communicating between the first space and the second space is formed through the through-hole. The method according to claim 1,
Wherein a guide rotating body is provided between an inner circumferential surface of the cylinder housing and a lower outer circumferential surface of the piston and a step for preventing the guide rotating body from being separated from the inner circumferential surface of the cylinder housing is protruded toward the inside. The method according to any one of claims 1 to 3,
Wherein the cylinder housing comprises:
And the remainder of the piston except the upper end of the piston protruding upward is wrapped around the inside of the piston. The method of claim 2,
The piston,
A piston head partially protruding from an open upper end of the cylinder housing and having an outer surface in close contact with an inner circumferential surface of the cylinder housing;
A piston support formed to have a horizontal cross-sectional area smaller than a horizontal cross-sectional area of the piston head, the piston support being connected to a lower surface of the piston head such that a lower surface of the piston head is positioned higher than a formation position of the communication hole;
And a cutting device for removing the cutting tool. The method of claim 4,
On one side surface of the cylinder housing,
And a lubricant injection hole through which lubricant can be injected is formed between the inner circumferential surface of the cylinder housing and the outer circumferential surface of the piston. The method of claim 4,
The sealing cover
A deformation preventing plate coupled to a lower side of the cylinder insertion port and formed with a guide hole into which a lower end of the piston is inserted to guide the upward and downward movement of the piston;
A plurality of stopper bolts and washers which seal the lower side of the guide holes so that the lower end of the piston is not separated from the lower side of the guide holes;
And a cutting device for removing the cutting tool.

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