KR100908070B1 - Granitic slab, granitic slab processing equipment and the manufacturing method - Google Patents

Abstract

A granitic slab, and a manufacturing apparatus and method thereof are provided to reduce fatigue of user's eyes due to the glazed surface of granitic slab, by forming grooves along the texture of the slab surface so that light is irregularly reflected. A manufacturing apparatus of granite slab comprises a transfer conveyor(2) transferring a granite slab(1) in one direction, a polisher(3), a plurality of polishers arranged in a row, a moving device(4) having a horizontal reciprocating unit, a main body(5) having a control panel and supporting both sides of the moving device, and a water supply pump(6) supplying water to the polisher. The polisher is composed of a polishing disk machining the granite slab, a central shaft rotating the polishing disk and supplying water, a cylinder moving the central shaft up and down, a connector having engagement pieces joined to the cylinder, and a motor providing torque to pulleys.

Description

Granite slab, granite slab processing equipment and processing method {Granitic Slab, granitic slab processing equipment and the manufacturing method}

The present invention relates to a granite slab, a granite slab processing apparatus and a processing method thereof, and more particularly, to a plurality of grinders formed at an upper portion thereof, and a conveyor for transferring granite slabs along a polisher at a lower portion thereof. Granite slabs that have the effect of providing natural-friendly granite slabs and granite slabs that are harmless to the human body by using cutting brushes, part of polishing machines using finishing brushes, and the other grinding machines by forming a polishing brush into ceramic particle brushes. The present invention relates to a granite slab processing apparatus and a processing method thereof.

There are two apparatus and methods for processing marble or granite slabs that are conventionally used.

First, in the case of polishing polishing, the polished polishing slab maintains a constant brightness because the surface is smooth, looks neat by the reflection of light, looks clean but the surface looks cold and stimulates the user's eyes by the refraction of light. There was a problem to increase the eye fatigue.

Second, in the case of acid-treated antiques, acid-treated slabs are melted surfaces of marble or granite using chemicals. After a certain period of time, the corrosion of chemicals weakens the strength of marble or granite slabs, which can easily be damaged. There were various problems such as bleeding out.

In addition, according to the method disclosed in the registration number 10-0309112, after processing the raw stone to the slab, while moving the slab in one direction by spraying the impeller-type shot ball on one surface to strike the metal particles on the surface of the slab As a result, irregularities are formed on the surface.

In this method, many dusts and metal particles are scattered to the outside, which may cause worker's eye damage and warpage of the slab due to impact when hitting the shotball. The unevenness depth at this time is about 0.5m. / m or so. In addition, when a relatively deep unevenness of about 1 m / m is required, there is a problem in that the use of the product is impossible due to the sudden warpage phenomenon in the slab of 30 m / m or less. In addition, there is a disadvantage that it is difficult to form irregularities of 3 m / m or more.

In addition, according to the method disclosed in the registration number 10-0457208, the cooling action of the water does not occur in the internal properties of the slab can increase the durability, excellent anti-slip, improve productivity as well as dust and noise The present invention provides an uneven treatment apparatus and uneven treatment method for a slab material that can reduce and reduce unevenness on the surface of the slab.

However, the method of spraying the high pressure water as described above has a problem that the unevenness formed on the surface of the slab is not natural and its processing efficiency is lower than that of supplying power. If the spraying speed is low, the hard material is not grooved and only the soft material is formed. If the nozzle is high, the hard material is well formed but the soft material is deeply formed. There was a problem that the breakage of the slab and the worker can not naturally form the unevenness desired.

Accordingly, the present invention was created to solve the above problems, the object of the present invention is as follows.

1) Its purpose is to provide natural-friendly granite slabs that are three-dimensional convex, naturally utilizing three-dimensional effect such as color, pattern, and texture of granite slabs.

2) Its purpose is to reduce fatigue in the eyes of users by naturally utilizing the surface of granite slabs.

3) The purpose is to provide granite slabs that are harmless to human body by processing granite slabs in a natural way.

As described above, technical means for achieving the object of the present invention is as follows.

A granite slab processing apparatus for processing a surface of granite slabs, comprising: a conveying conveyor for transferring granite slabs in at least one direction; Polishing disk for processing granite slabs on the conveying conveyor, central axis for rotating and supplying water to the grinding disk, cylinders formed on both sides of the central axis to move the central axis, coupled to the central axis and coupled to the cylinder on both sides A grinder including a connector having a piece and a motor formed on one side of the central shaft and configured to provide a rotational power to a pulley; A mover having a plurality of grinders in one row and having moving means for horizontal reciprocating movement; A main body supporting both sides of the mover and having a control panel; And a water supply pump for supplying water to the grinder to one side of the main body.

Oxygen rapid injection burner for cutting the surface of the granite slab to one side of the main body; Sanding machine for sandblasting the surface of the granite slab on one side of the burner; And trimming having a plurality of tablets to finish the surface of the granite slab on one side of the sanding machine; Characterized in that it further comprises a granite pretreatment device comprising at least one of.

The polishing disk has a diameter of 0.5 to 1 m, the rotation speed of the polishing disk is 1800 to 3000 rpm, and forms three to eight polishing plates radially in the lower portion thereof; The abrasive plate forms a brush at the bottom; The abrasive plate is a trapezoidal plate body, both sides are formed narrower from the top to the bottom, characterized in that the coupling grooves formed by forming a coupling groove at the bottom of the abrasive disc.

The brush uses at least one of a cutting brush, a finishing brush, and a polishing brush; Three to six of the polishing machines use cutting brushes, four to six finishing brushes, and three to six polishing brushes; The cutting brush is made of steel wire, and the wire is 0.1 ~ 0.8mm in diameter and twisted at least 1 or 2 strands to form an exposed length of 2 ~ 5㎝, and the cutting brush polishes 30 ~ 180 pieces. It is formed at the bottom of the plate, the cutting brush is small in diameter and the number of the cutting brush in accordance with the order of processing the granite slab; Polishing brush and polishing brush are used by impregnating diamond or ceramic particles on the wire surface of synthetic resin material, and forming the exposed length by 2 ~ 5cm by twisting 0.5 ~ 2.1mm wire with 1 or 2 strands. 30 ~ 210 pieces are formed at the bottom of the polishing plate, and the polishing brush has a small diameter and the number of polishing brushes is increased according to the order that the finishing brush processes granite slabs. Brushes are characterized in that the diameter of the brush is smaller than the brush for finishing and the number thereof is increased.

The conveying speed of the conveying conveyor is characterized in that V = 1 m / min ~ 1.5 / min.

In the granite slab processing method for processing the surface of the fossil stone slab, supplying the granite slab through a conveying conveyor; Cutting the surface of the supplied granite slab using a brush; Finishing the surface of the cut granite slab using a brush; Polishing the surface of the polished granite slab; And discharging the conveying conveyor to the granite slab processed using the brush. Characterized in that consisting of.

Cutting the surface of the granite slab by rapidly spraying oxygen before the step of cutting with the wire brush; Sandblasting to sand the surface of the granite slab; And finishing the granite surface using a smoothing having a plurality of tablets; And pretreating the surface of the granite slab including at least one of the above.

The grinding machine used for cutting the surface of granite slab, polishing the surface of granite slab and polishing the surface of granite slab, uses brush and polishes the surface of granite slab at 1800 ~ 3000rpm to improve the depth of groove. Polishing to 0.1-5 mm; The brush uses the cutting brush in the step of cutting the surface of the granite slab, the finishing brush in the step of finishing the surface of the granite slab, and the polishing brush in the step of polishing the surface of the granite slab; Cutting with a cutting brush is repeated 3 to 6 times, and finishing with a finishing brush is repeated 4 to 8 times, and polishing with a polishing brush is repeated 3 to 6 times.

The cutting brush is made of steel wire, and the wire is 0.1 ~ 0.8mm in diameter and twisted at least 1 or 2 strands to form an exposed length of 2 ~ 5㎝, and the cutting brushes are 30 ~ 180 polishers. Formed in the cutting brush, in accordance with the order in which the cutting brush processes the granite slab, the cutting brush decreases in diameter and the number thereof increases; Polishing brush and polishing brush are used by impregnating diamond or ceramic particles on the wire surface of synthetic resin material, and forming the exposed length by 2 ~ 5cm by twisting 0.5 ~ 2.1mm wire with 1 or 2 strands. And 180 ~ 500 pieces are formed in the polishing machine, and the polishing brush has a smaller diameter and the number of polishing brushes in accordance with the order that the finishing brush processes granite slabs. The diameter of the brush is smaller than the brush for finishing, characterized in that the number increases.

The conveying speed of the conveying conveyor is characterized in that V = 1 m / min ~ 1.5 / min.

On the other hand, it is characterized by the granite slab produced by the granite slab processing apparatus and the granite slab processing method.

As mentioned above, the effect of this invention is as follows.

1) By making the convex three-dimensional, granite slab material phase, color pattern, and texture naturally, the surface of the granite slab has the effect of providing a warm, nature-friendly granite slab.

2) Grooves are naturally formed along the surface of the granite slabs so that the surface of the granite slabs is matte to glossy without chemical treatment, so that light is scattered through diffuse reflections and is not concentrated on the user, reducing eyestrain. It is effective to let.

3) The surface of the granite slab is processed without chemical treatment, and the granite slab is processed in a natural way, thereby providing a granite slab that is harmless to the human body.

4) Since the surface of the granite slabs can be polished to a desired depth with a brush, there is an effect of providing the surface of the granite slabs desired by the user.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

<Granite slab processing apparatus according to the present invention>

1 is an overall schematic configuration diagram showing a granite slab processing apparatus according to the present invention, Figure 2 is a perspective view and an operational state diagram showing a polishing machine according to the present invention, Figure 3 is a main portion operation showing a polishing machine according to the present invention State diagram. 1 to 3, the granite slab processing apparatus according to the present invention is composed of a conveying conveyor, a grinding machine, a mover, and a water supply pump. At this time, the conveying conveyor (2) is to transfer the granite slab (1) in at least one direction, it can be used in the conventional belt type, the present invention smoothly drain the water because it supplies the water while grinding the granite slab (1) It is preferable to use a cylindrical type to make. At this time, the speed of the conveying conveyor 2 is preferably V = 1 m / min ~ 1.5 / min.

The grinding machine 3 is formed of the grinding disk 31, the central axis 32, the cylinder 33 and the motor 34 and installed in the conveyor. At this time, the grinding disk 31 is processed to the surface of the granite slab (1) while being reciprocated in the upper conveying conveyor (2). The central shaft 42 is installed vertically in a cylindrical shape to rotate the polishing disk 31 and discharge the water supplied from the water supply tank to the bottom surface of the polishing disk 31 through the central drain pipe. The cylinder 33 is connected to the central axis 32 to move up and down in accordance with the operation of the cylinder 33. That is, by the cylinder 33, the abrasive disc 31 polishes the granite slab 1, which is moved above the transfer conveyor 2. The motor 34 is formed on one side of the central shaft 32 to provide rotational power using a pulley.

Here, one or two cylinders 33 can be installed, but the embodiment according to the present invention constitutes two cylinders 33. In this case, in order to connect the cylinder 33 to the central shaft 32, the central shaft 32 is formed to form a central hole, and the coupling member 321 having a coupling piece 322 to couple the cylinder 33 to both sides is formed. In addition, a bearing is formed inside the central hole so that the central axis rotates freely. That is, the connector 321 allows the central shaft 32 to rotate through the pulley to the rotational force transmitted from the motor 34 while moving the central shaft 32 up and down by the cylinder 33. (See FIG. 3).

The mover 4 has a plurality of polishers 3 in one row. At this time, it is preferable that the grinder 3 is provided with 10-20 pieces. The moving means for moving the upper and lower reciprocating the upper part of the main body 5 by the mobile device 4 is a granite slab (1) which is transported by a conveying conveyor 2 using a conventional motor, a decompression gear, a rack and a pinion, a hydraulic cylinder, and the like. The surface of the granite slab (1) is polished by the grinding machine (3) of the width of the granite slab, that is, the horizontal reciprocating motion inside the body.

The main body 5 supports both sides of the mover 4. The conveying conveyor (2) is installed inside, and the opening of the predetermined size is formed so that the granite slab (1) which is conveyed along the conveying conveyor (2) in the lower side on both sides.

The water supply pump 6 is installed at one side of the main body 5 to supply water supplied from the outside to the center of the central shaft 32 at a predetermined water pressure. In this case, supplying water to the central shaft 32 may prevent the dust generated while grinding the granite slab 1, and may replenish abrasive materials or the like in order to smooth the polishing along the surface of the granite slab 1.

The granite pretreatment device 7 is installed at least one or more of the burner 71, the sanding machine 72 and the trimming 73 on one side of the main body 5, wherein the granite slab 1 has a high strength of the granite slab. In order to process (1), the surface of the granite slab 1 is pretreated.

Burner 71 is used to cut the surface of the granite slab 1 oxygen rapid injection burner 71 uses a configuration similar to the oxygen welding. At this time, the oxygen rapid injection burner 71 used to cut the surface of the granite slab 1 by flame by spraying high temperature oxygen on the surface of the granite slab 1 at a high pressure.

The sanding machine 72 sandblasts the surface of the granite slab 1 and cuts the granite slab 72 using the sanding machine 72 through a conventional sandblasting method.

The trimming 73 is to trim the surface of the granite slab 1, and to trim the surface of the granite slab 1 by using the trimming 73 having a plurality of tablets. At this time, the trimming 73 hits the surface of the granite like a crusher to trim the surface of the granite slab 1. Therefore, the positive size provided in the trimming 73 may be formed to 1 to 10 mm, but preferably 4 to 6 mm.

Such granite pretreatment device 7 is preferably installed before grinding the surface of the granite slabs, and can be used when processing various slabs of a hard material such as granite slabs 1.

When explaining the main configuration of the present invention in more detail, the abrasive disc 31 has a disk shape of 0.5 ~ 1m in diameter, according to the processing sequence of the granite slab (1) to 1800 ~ 3000rpm. At this time, the abrasive disc 31 is to form three to eight abrasive plates 35 in the lower portion.

The abrasive plate 35 is a trapezoidal plate body, which is formed so that both side surfaces thereof become narrower from the upper side to the lower side, and forms the brush 8 on the lower side. At this time, the abrasive plate 35 is fitted into the coupling groove 311 formed in the abrasive disc 31. That is, both sides of the abrasive plate 35 are inclined, and the coupling groove 311 is also installed to be inclined to engage the abrasive plate 35.

In this case, the brush 8 continuously uses one or more of the cutting brush 81, the finishing brush 82, or the polishing brush 83. That is, 3 to 6 of the 10 to 20 grinders 3 use cutting brushes 81, 4 to 6 finishing brushes 82, and 3 to 6 polishing brushes 83. It is preferable to use. (See Figs. 5 to 10)

The cutting brush 81 uses a steel wire, and the cutting brush 81 is formed by twisting a wire having a diameter of 0.1 to 0.8 mm in one or two strands or more to form an exposed length of 2 to 5 cm. 30 to 180 solvent brushes 81 are formed at the bottom of the polishing plate 35. At this time, it is preferable that the diameter of the cutting brush 81 decreases and the number thereof increases according to the order in which the grinder 3 processes the granite slab 1.

The finishing brush 82 is used by impregnating diamond grains or ceramic particles on the wire surface of a synthetic resin material, and the finishing brush 82 twists a wire 1.3 to 2.1 mm in diameter by one or two strands or more. 2-5 cm, 180-500 finishing brushes 82 are formed in the lower end of the abrasive plate 35. At this time, it is preferable that the diameter of the finishing brush 82 decreases and the number thereof increases according to the order in which the grinder 3 processes the granite slab 1.

Polishing brush (83) is used by impregnating diamond or ceramic particles on the wire surface of the synthetic resin material, the polishing brush (83) is exposed by twisting one or two strands of wire 0.5 ~ 1.3㎜ in diameter 2 to 5 cm to form 180 to 500 gloss brushes 83 at the bottom of the polishing plate (35). At this time, it is preferable that the diameter of the polishing brush 83 decreases and the number thereof increases according to the order in which the grinder 3 processes the granite slab 1.

Such a gloss brush 83 is preferably smaller in diameter and larger in number than the brush 32 for finishing.

<Granite slab processing method according to the present invention>

Figure 11 is a flow chart showing a granite slab processing method according to the present invention. As shown in FIG. 11, the granite slab processing method includes supplying granite slabs through a transfer conveyor (S100), cutting the surface of the granite slabs supplied using a brush (S200), and cutting by using a brush. Polishing the surface of the granite slab (S300), polishing the surface of the polished granite slab using a brush (S400) and the step of discharging the processed granite slab transport conveyor (S500). At this time, in the step of supplying the granite slab through the conveying conveyor, the speed of the conveying conveyor is preferably V = 1m / min ~ 1.5 / min. In addition, the step of cutting with a cutting brush (S200) is repeated 3 to 6 times, the step of finishing with a brush for finishing (S300) is repeated 4 to 8 times, the step of polishing with a brush for polishing (S400) is 3 ~ It is preferable to repeat six times.

In the case of granite, since the material is hard, the step S010 of pretreatment of the surface of the granite slab is preferably performed before the step of supplying the granite slab through the transfer conveyor (S100).

Pretreatment of the surface of the granite slab (S010) is a step of rapidly spraying oxygen with an oxygen rapid injection burner to cut the surface of the granite slab (S001), sandblasting to sand the surface of the granite slab (S002), and Finishing the granite surface using a smoothing having a plurality of tablets (S300). At this time, the step (S010) of pretreating the surfaces of the three granite slabs may be used in all, but it is preferable to use at least one or more of three selectively according to the surface of the granite slabs.

As such, the polishing machine used in the step of cutting the surface of the granite slab for polishing the surface of the granite slab (S200), the step of finishing the surface of the granite slab (S300) and polishing the surface of the granite slab (S400) is a brush. Use At this time, the rotational speed of the polishing machine is preferably set to 1800 ~ 3000rpm according to each step (S200, S300, S400) of the surface of the granite slab.

The brush used in the polishing machine is a cutting brush in the step of cutting the surface of the granite slab (S200), using a brush for finishing in the step (S300) of finishing the surface of the granite slab, the surface of the granite slab In the step of cutting (S400) it is preferable to use a brush for polishing.

The cutting brush used in cutting the surface of the granite slab (S200) uses a wire made of steel, and the cutting brush is exposed by twisting a wire having a diameter of 0.1 to 0.8 mm in one or two strands or more. Form 2 ~ 5㎝ and form 30 ~ 180 cutting brushes at the bottom of the polishing plate. At this time, according to the order in which the grinding machine processes the granite slab, the cutting brush is preferably smaller in diameter and larger in number.

The finishing brush used in the step of finishing the surface of granite slabs (S300) is used by impregnating diamond particles or ceramic particles on the wire surface of synthetic resin material, and the finishing brush uses one strand of wire having a diameter of 1.3 to 2.1 mm or Twist two or more strands to form an exposed length of 2-5cm, and form 30-180 finishing brushes at the bottom of the polishing plate. At this time, according to the order in which the grinding machine processes the granite slab, the finishing brush is preferably smaller in diameter and larger in number.

Polishing brush used in the step of polishing the surface of granite slab (S400) is used by impregnating the diamond or ceramic particles on the surface of the synthetic resin wire, the brush for polishing is one strand or 0.5 ~ 1.3㎜ wire Twist two or more strands to form an exposed length of 2-5cm to form 180-500 polished brushes at the bottom of the polishing plate. At this time, it is preferable that the polishing brush has a small diameter and the number thereof increases according to the order in which the grinder processes the granite slab.

On the other hand, the present invention includes a granite slab manufactured by the above-described processing apparatus and method. In other words, granite slabs are three-dimensional, and three-dimensional patterns are formed according to the cuts, grains, patterns, and grooves of the gemstones, and they are harmless to the human body because they do not use chemicals at all. When the surface is polished with a brush, the weak material is easily polished to create a deep groove, and the strong material is not polished to form a pattern according to the surface shape.

12 is a comparison table showing a cross section of the granite slab and the conventional slab according to the present invention. As shown in FIG. 12, the granite slab according to the present invention is convex three-dimensional, and the maximum depth is polished to 5 mm to naturally take advantage of the color, pattern, and texture of the granite slab material, and to the user through eye surface diffuse reflection. Can be reduced. In addition, the surface of the granite slab is matte or slight gloss, so there is little light reflection and the surface is convex so that light is scattered and does not irritate the user's eyes.

The embodiment according to the present invention is described as being limited to granite slabs, but may process slabs of various materials such as marble, artificial marble, etc. which may be processed into slabs.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive. The scope of the present invention is shown by the detailed description of the appended claims, which should be construed that all changes or modifications derived from the meaning and scope of the claims and equivalent concepts are included in the scope of the present invention. .

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be interpreted.

1 is an overall schematic view showing a granite slab processing apparatus according to the present invention.

Figure 2 is a perspective view and an operation state showing a polishing machine according to the present invention.

Figure 3 is a main operation state diagram showing a polishing machine according to the present invention.

Figure 4 is a schematic configuration diagram showing a brush according to the present invention.

Figure 5 is a side cross-sectional view showing a first embodiment of an abrasive plate according to the present invention.

Figure 6 is a bottom view showing a first embodiment of an abrasive plate according to the present invention.

Figure 7 is a bottom view showing a second embodiment of the abrasive plate according to the present invention.

8 is a sectional view showing a third embodiment of the abrasive plate according to the present invention and an enlarged view of the main portion.

9 is a bottom view showing a third embodiment of an abrasive plate according to the present invention;

Figure 10 is a bottom view showing a fourth embodiment of the abrasive plate according to the present invention.

11 is a flow chart showing a granite slab processing method according to the present invention.

Figure 12 is a comparison table showing a cross section of granite slabs and conventional slabs according to the present invention.

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

1: Granite slab 2: Transfer conveyor 3: Polishing machine 31: Polishing disc

311: coupling groove 32: central axis 321: connector 322: coupling piece

33: cylinder 34: motor 35: abrasive plate 4: mover

5: main body 6: water supply pump 7: pretreatment device 71: burner

72: sanding machine 73: trimming 8: brush 81: cutting brush

82: finishing brush 83: polishing brush

Claims (19)

In the granite slab processing apparatus for processing the surface of the granite slab, A conveying conveyor having a traveling speed of transferring the granite slab in at least one direction, V = 1 m / min to 1.5 / min; Polishing disk for processing the granite slab on the conveying conveyor top, the central axis for supplying rotation and water of the polishing disk, the cylinder is formed on both sides of the central axis upper and lower the cylinder, coupled to the central axis and both sides A grinder including a connector having a coupling piece to which the cylinder is coupled, and a motor formed on one side of the central shaft to provide rotational power to a pulley; A mover having a plurality of grinders in one row and having horizontal reciprocating means; A main body supporting both sides of the mobile unit and having a control panel; And A water supply pump for supplying water to a grinder on one side of the main body; An oxygen rapid injection burner for cutting the surface of the granite slab to one side of the main body; Sanding machine for sandblasting the surface of the granite slab on one side of the burner; And a plurality of tablets for finishing the surface of the granite slab on one side of the sanding machine. Further comprising; granite pretreatment device comprising at least one of The polishing disk has a diameter of 0.5 to 1m, the rotational speed of the polishing disk is 1800 ~ 3000rpm, the polishing disk is formed radially in the bottom three to eight coupling grooves, the coupling groove in the trapezoidal plate body on both sides Fitting three to eight abrasive plates formed narrower from top to bottom; The abrasive plate is installed on the lower brush; The brush uses at least one of a cutting brush, a finishing brush, and a polishing brush; Three to six of the polishing machines use the cutting brush among the brushes, four to six use the finishing brush among the brushes, and three to six use the polishing brushes among the brushes. ; The cutting brush is formed on the lower surface of the polishing plate by twisting one or two strands of steel material having a diameter of 0.1 to 0.8 mm so that the exposed length is 2 to 5 cm and the number thereof is 30 to 180. In accordance with the order of processing the granite slab, the diameter of the wire constituting the cutting brush is reduced and the number thereof increases, The polishing brush and the polishing brush have a diameter of 0.5 to 2.1 mm on the lower surface of the polishing plate, and the exposure length is twisted by twisting one or more strands of synthetic resin wires impregnated with diamond grains or ceramic particles on the surface thereof. 2 to 5 cm, and the number thereof is 180 to 500, and according to the order of processing the granite slab, from the finishing brush to the polishing brush, respectively, of the wire constituting the finishing brush or polishing brush, respectively. Granite slab processing apparatus characterized in that the diameter is reduced and the number thereof increases . delete delete delete delete delete delete delete delete delete In the granite slab processing method for processing the surface of the granite slab, Supplying the granite slab through a transfer conveyor having a traveling speed of V = 1 m / min to 1.5 / min; Cutting the surface of the granite slab by rapidly injecting oxygen; Sandblasting to sand the surface of the granite slab; And finishing the granite surface using a smoothing having a plurality of tablets. Pretreating the surface of the granite slab comprising at least one of the following; Repeatedly cutting the surface of the supplied granite slab three to six times using a cutting brush; Repeatedly finishing the surface of the cut granite slab 4 to 8 times by using a brush for finishing; Polishing the surface of the polished granite slab three to six times by using a brush for polishing; And discharging the processed granite slab to the processed conveyor. The polishing machine formed of a polishing disk having a plurality of polishing plates provided with the cutting brush, the finishing brush and the polishing brush in the granite slab cutting step, the granite slab finishing step and the granite slab polishing step is 1800-3000 rpm. Grinding the surface of the granite slab, the depth of the groove to the surface of the polished granite slab to 0.1-5mm, The cutting brush used in the granite slab cutting step is the strand length of 0.1 ~ 0.8mm by twisting one or two strands of steel wire with a diameter of 0.1 ~ 0.8㎜ on the lower surface of the slab, the exposure length is 2 ~ 5㎝, the number is 30 Formed to be ~ 180, the diameter of the wire constituting the cutting brush in accordance with the order of processing the granite slab becomes smaller and the number is increased, The polishing brush and the polishing brush used in the granite slab finishing step and the granite slab polishing step have a diameter of 0.5 to 2.1 mm on the lower surface of the abrasive plate, and a synthetic resin material impregnated with diamond particles or ceramic particles on the surface. Twist one or two strands of wire to form an exposed length of 2-5cm, the number of which is 180-500, and in order to process the granite slab, from the finishing brush to the polishing brush The diameters of the wires constituting the finishing brush or the polishing brush become smaller and the number thereof is larger, and the wires constituting the polishing brush are smaller in diameter and larger in number than the wires constituting the polishing brush. Granite slab processing method characterized in that. delete delete delete delete delete delete delete Granite slabs, which are processed according to claim 1 or 11.

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