KR101135759B1 - Stone cutting apparatus - Google Patents

Abstract

The present invention provides a stone cutting device to cut the processed stone to form a paving stone or to cut the waste stone to discard or recycle. Stone cutting device according to the present invention is provided with a body 10, the lower blade 50, the upper blade 70, the shankdong member 90 and the control unit 20 to cut the stone (5) to a predetermined length. At this time, the body 10 is formed with a space 101 is opened in the direction in which the stone 5 is moved, the lower blade 50 is coupled to the body 10 from the lower side of the space 101 is stone ( The cutting edge of 5) is supported, and the upper blade 70 is disposed on the space portion 101 so as to face the lower blade 50. In addition, the shank copper member 90 has an actuator 905 disposed above the space portion 101 and coupled to the body 10 to move the upper blade 70 in the vertical direction, and the stone 5 is When positioned on the lower blade 50, by driving the actuator 905, the upper blade 70 is moved downward to cut the stone (5). In addition, the controller 20 controls the operation of the actuator 905. Such a stone cutting device of the present invention is generally capable of cutting the paving stone or waste-rock by applying a press method having a high process speed in metal processing, it is possible to perform the paving stone or waste-rock faster than the prior art At the same time, the process of cutting the processed stone or the waste stone to the outside during the process of cutting the processed stone or the waste stone at a predetermined interval can be significantly reduced, and as a result, there is no fear that the worker may be injured or injured as before. . In addition, by combining the stone automatic supply unit to realize the automation from the process of transporting or cutting the process stone or waste stone can be cut safely and quickly the processed stone or waste stone.

Description

Stone cutting device {STONE CUTTING APPARATUS}

The present invention relates to a stone cutting device, and more specifically to cutting the processed stone to form a paving stone or to cut or discard the waste stone to have a faster process speed than the conventional stone cutting device, Or it relates to a stone cutting device to significantly reduce the splashing of the process stone or waste stone to the outside during the process of cutting the waste stone at a predetermined interval, and effectively reduce the risk of safety accidents when cutting.

In general, although the stone is expensive and difficult to process, it is not only beautiful in appearance and beautiful, but also strong in abrasion and weathering. It is used.

On the other hand, it satisfies the needs and desires to create a natural environment by replacing cement or asphalt, which is commonly used in the construction of walls, stone walls, or firefighting, as well as paving sidewalks, parking lots, and trails. Increasingly, the use of paving stones (called abrasive thinking or dead stones) is used to make them work.

Such a paving stone is formed by mechanically cutting natural stones such as granite or limestone into the shape of a cube, using natural surfaces directly, or by smoothly mechanically grinding very rough surfaces or sharp edges like natural stones.

However, to date, there is a problem that a suitable stone cutting device is not provided to form a paving stone. That is, cutting processing of processed or waste stone (stone for recycling or disposal) for forming a paving stone is generally performed by using a cutting device provided or by hand. 튈 There is a problem that not only the concerns are multiplied, but also the worker is injured by accidents such as injured by processed stones or waste stones. For example, the technology currently proposed as a stone cutting device is registered in the Republic of Korea Patent Publication No. 10-0676753 "Stone cutting device", 10-0780296 "Stone processing method and device", Patent Publication No. 10- 2008-0082317 "stone cutting machine," etc., such as a stone cutting device for precisely cutting the processed stone or to have a certain shape, such as cutting a natural surface like a paving stone or relatively fast like waste stone There is a problem that is not suitable for machining that requires cutting.

Therefore, the present invention has been proposed to solve the problems of the prior art, and an object of the present invention is to provide a stone cutting device of a new type that can be carried out safely and quickly to the paving stone or waste-rock compared to the prior art It is done.

In particular, the present invention is to provide a stone cutting device to cut the paving stone or waste-rock by applying a press method having a high process speed in metal processing generally, compared to the prior art It is possible to perform the process quickly and at the same time, the process of cutting the process stone or waste stone to the outside during the process of cutting the process stone or waste stone can be significantly reduced. It is an object of the present invention to provide a new type of stone cutting device to be eliminated.

In addition, another object of the present invention is to provide a new type of stone cutting device capable of safely and quickly cutting the processed stone or waste stone by realizing automation from the transfer process of the processed stone or waste stone to the cutting process.

According to a feature of the present invention for achieving the above object, the present invention is a stone cutting device for cutting the stone 5 to a predetermined length, the space portion 101 is opened in the direction in which the stone 5 is moved Body 10 is formed; A lower blade 50 coupled to the body 10 at the lower side of the space portion 101 to support the cut portion of the stone 5; An upper blade 70 disposed on the space portion 101 so as to face the lower blade 50; In order to move the upper blade 70 in the vertical direction has an actuator 905 disposed above the space portion 101 and coupled to the body 10, the stone 5 is the lower blade 50 A moving member (90) for cutting the stone (5) by moving the upper blade (70) downward by driving of the actuator (905) when positioned on the; It includes a control unit 20 for controlling the operation of the actuator 905.

In the stone cutting device according to the present invention, the actuator 905 is a hydraulic cylinder, the control unit 20 and the solenoid valve 24 is installed on the hydraulic line 22 to supply the hydraulic pressure to the hydraulic cylinder and The sensor 26 for detecting the downward movement position of the upper blade 70 and the position of the upper blade 70 are received from the sensor 26, and the upper blade 70 is the stone 5. When the solenoid valve 24 is in contact with the hydraulic pressure line 22, the hydraulic pressure is continuously supplied to the hydraulic line 22 when the solenoid valve 24 cuts off the hydraulic line 22. ) May be provided with a controller 28 to open the hydraulic line 22 so that the hydraulic cylinder is momentarily operated in the downward direction.

In the stone cutting device according to the present invention, the shank copper member 90 is the pressure delay block is installed so that the upper side of the upper blade 70 is interposed between the actuator 905 and the upper blade 70. 901, wherein the actuator 905 is a hydraulic cylinder, and the control unit 20 is a solenoid valve 24 installed on a hydraulic line 22 to supply hydraulic pressure to the hydraulic cylinder. A sensor 26 for detecting a position where the upper edge of the upper blade 70 abuts the pressing delay block 901, and the upper blade 70 contacts the pressing delay block 901 from the sensor 26. When the solenoid valve 24 is shut off the hydraulic line 22 to continue to supply the hydraulic pressure to the hydraulic line 22 so that the size of the predetermined hydraulic pressure, the solenoid valve 24 is Open the hydraulic line 22 A pressure cylinder may be provided with a controller 28, such that momentary operation in the downward direction.

In the stone cutting device according to the present invention, the lower blade 50 is inserted into the slit 301 is formed, is located in the space 101 is coupled to the body 10, the stone ( 5) further includes a seating plate 30, which can be cut while transferring the stone (5) to a predetermined length in a state placed on the seating plate (30).

In the stone cutting device according to the present invention, the shank member 90 is a guide rail coupled perpendicularly to the body 10 in the space 101 so as to be parallel to the vertical movement direction of the upper blade (70). And a top and bottom guiding block 903, one side of which is interposed between the actuator 905 and the upper blade 70 and the other side of which is coupled to the guide rail 101a so as to be movable. Can be.

The stone cutting device according to the present invention is disposed on the outside of the body 10, is installed at the same height as the seating plate 30 to transfer the stone (5) from the outside to the seating plate (30) Stone automatic supply unit 100 having a transport belt 130 and a loader 150 for sequentially pushing the stone 5 conveyed through the transport belt 130 in the stone moving direction of the space 101. ) May be further included.

According to the stone cutting device according to the present invention, in general, by applying a press method having a high process speed in metal processing to cut the paving stone or waste-rock, the paving stone or waste-rock is carried out faster than the prior art At the same time, the process of cutting the processed stone or the waste stone to the outside during the process of cutting the processed stone or the waste stone at a predetermined interval can be significantly reduced, and as a result, the worker is not likely to be injured or injured as before. do. In addition, by combining the stone automatic supply unit to realize the automation from the process of transporting or cutting the process stone or waste stone can be cut safely and quickly the processed stone or waste stone.

1 is a view for explaining the technical idea of the stone cutting device according to the present invention, Figure 2 is a perspective view showing a form in which the stone is cut by the stone cutting device of the present invention, Figure 3 is a stone cutting according to the present invention It is a figure for demonstrating the shape of an upper blade and a lower blade applied to an apparatus.

Referring to Figure 1, the stone cutting device according to the present invention is provided with a stone 10 having a body 10, the lower blade 50, the upper blade 70, the shandong copper member 90 and the control unit 20 Cut to a fixed length. At this time, the body 10 is formed with a space 101 is opened in the direction in which the stone 5 is moved, the lower blade 50 is coupled to the body 10 from the lower side of the space 101 is stone ( The cutting edge of 5) is supported, and the upper blade 70 is disposed on the space portion 101 so as to face the lower blade 50. In addition, the shank copper member 90 has an actuator 905 disposed above the space portion 101 and coupled to the body 10 to move the upper blade 70 in the vertical direction, and the stone 5 is When positioned on the lower blade 50, by driving the actuator 905, the upper blade 70 is moved downward to cut the stone (5). In addition, the controller 20 controls the operation of the actuator 905.

As such, the stone cutting device according to the present invention generally performs a paving stone or waste stone faster than the prior art by applying a press method having a high process speed in metal processing to cut the paving stone or waste stone. At the same time, the process of cutting the processed stone or the waste stone to the outside during the process of cutting the processed stone or the waste stone at a predetermined interval can be significantly reduced, and as a result, the worker is not likely to be injured or injured as before. do.

At this time, the cutting of the stone, unlike the process of crushing by applying a continuous force by applying a large force at a time, as shown in Figure 2, it is necessary to make the cut surface uniform.

The present invention is characterized in that the control unit 5 is specially configured so that the cutting surface of the stone 5 is uniformly formed so that a relatively large force is applied when the stone 5 is cut. That is, the stone cutting device according to the present invention uses the actuator 905 as a hydraulic cylinder, and by controlling the control unit 20 so that the hydraulic cylinder is operated by the accumulated hydraulic pressure immediately before the cutting of the stone 5, the cutting force This is to make it work.

The control unit 20 for this purpose includes a solenoid valve 24, a sensor 26, and a controller 28. At this time, the solenoid valve 24 is installed on the hydraulic line 22 to supply the hydraulic pressure to the hydraulic cylinder 905, the sensor 26 detects the downward movement position of the upper blade (70). The controller 28 receives the position of the upper blade 70 from the sensor 26, and the solenoid valve 24 blocks the hydraulic line 22 when the upper blade 70 contacts the stone 5. After the hydraulic pressure is continuously supplied to the hydraulic line 22 in one state so as to have a predetermined size of hydraulic pressure, the solenoid valve 24 opens the hydraulic line 22 so that the hydraulic cylinder 905 is momentarily operated downward. do. Of course, such accumulation and temporary supply of the hydraulic force can be made by combining a variety of hydraulic devices used in this field, a detailed description thereof will be omitted.

In this case, the sensor 26 may be applied to various types of sensors used for position detection. That is, in FIG. 1, the sensors 26a, 26b, and 26c are sequentially disposed on the movement path of the upper blade 70 to detect the position of the upper blade 70 in each sensor and apply the control to the controller 28. , When the upper blade 70 is in contact with the stone (5) as in the preferred embodiment of the present invention to be described later, the upper blade 70 can be detected to proceed with the accumulation process of the hydraulic pressure. Therefore, the sensor 26 applied to the present invention is not limited to the kind, and various forms used for the position detection in this field are applied, and may be configured to adjust the installation position as necessary. .

'의 형태를 갖고, 상부날(70)의 날부(72)는 '

'의 형태를 갖도록 할 수 있고, 도 3의 (b)와 같이 하부날(50) 및 상부날(70)의 날부(52, 72)가 'V'으로 서로 대응되도록 형성될 수 있는 것이다. 따라서, 본 발명의 석재 절단장치에 적용되는 하부날(50)과 상부 날(70)의 각 날부(52, 72)의 형태는 프레스 공법의 절곡 또는 절단을 위한 다양한 종류의 펀치(punch) 또는 다이(die)로부터 응용하여 설계자 또는 사용자의 필요에 따라 선택적으로 적용될 수 있는 것이다. On the other hand, as shown in Figure 3, the shape of the blade portion 52, 72 of the lower blade 50 and the upper blade 70 applied to the present invention can be applied to a variety of structures as necessary. That is, as shown in Figure 3 (a), the blade portion 52 of the lower blade 50 is'

', The blade portion 72 of the upper blade 70 is'

3 and the blades 52 and 72 of the lower blade 50 and the upper blade 70 may be formed to correspond to each other as 'V'. Therefore, the shape of each blade 52, 72 of the lower blade 50 and the upper blade 70 applied to the stone cutting device of the present invention is a variety of punch (punch) or die for bending or cutting of the press method It can be selectively applied according to the needs of designers or users by applying from die.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, Figures 4 to 11, the same reference numerals are denoted with respect to the components performing the same function in Figures 1 to 11. On the other hand, in the drawings, generally known parts such as press technology, stone processing technology, control technology using a sensor, such as those commonly known by those skilled in the art are omitted, and shown mainly on the parts related to the present invention. In particular, there are parts where the size ratio between the elements is somewhat different or the sizes between the components coupled to each other are different, but the difference in representation of the drawings is easily understood by those skilled in the art. A separate description is omitted.

Figure 4 is a perspective view of a stone cutting device according to a preferred embodiment of the present invention, Figure 5 is a cross-sectional view for explaining the relationship between the upper blade, shandong copper member and sensor in the stone cutting device according to a preferred embodiment of the present invention.

4 and 5, the stone cutting device according to a preferred embodiment of the present invention body 10, the control unit 20, the seating plate 30, the lower blade 50, the upper blade 70 and Shanghai Made of eastern ash (90).

In the stone cutting device as described above, the body 10 is installed at the bottom of the ground at the place where the stone is cut, and the cross section is formed in a '[' shape so that the open space portion 101 is formed in the direction in which the stone 5 is moved. (Left-handed basis).

The control unit 20 includes a solenoid valve 24, a sensor 26, and a controller 28. At this time, the solenoid valve 24 is installed on the hydraulic line 22 to supply the hydraulic pressure to the hydraulic cylinder 905, the sensor 26 detects the downward movement position of the upper blade (70). The controller 28 receives the position of the upper blade 70 from the sensor 26, and the solenoid valve 24 blocks the hydraulic line 22 when the upper blade 70 contacts the stone 5. After the hydraulic pressure is continuously supplied to the hydraulic line 22 in one state so as to have a predetermined size of hydraulic pressure, the solenoid valve 24 opens the hydraulic line 22 so that the hydraulic cylinder 905 is momentarily operated downward. do.

On the other hand, the seating plate 30 is a stone (5) including a processed stone and waste stone, such as a paving stone extending in the front and rear direction to be cut is seated, the body 10 to be located below the space portion 101 Is installed horizontally on the At this time, in the center of the seating plate 30 is formed a slit 301 of the upper and lower open state extending in the left and right directions.

The lower blade 50 is in contact with the lower surface of the stone (5) seated on the seating plate 30, is installed on the body 10 in a vertical position on the lower portion of the seating plate (30). The mounting plate 30 is bolted to both sides of the fixing plate 103, the lower both sides are provided horizontally on the bottom surface of the space 101. The upper side of the lower blade 50 is accommodated in the slit 301 formed in the center of the seating plate 30 is in contact with the bottom surface of the stone (5) seated on the seating plate (30).

The upper blade 70 instantaneously transmits an impact to the stone 5 in a state in contact with the upper surface of the stone 5 seated on the seating plate 30, respectively, a predetermined length of the stone seated on the seating plate 30 By cutting | disconnecting, it moves to the up-down direction by the shanghai copper member 90. FIG.

At this time, the shankdong member 90 is installed to be supported on the body 10 to be located above the space 101. In this embodiment, the movable member 90 includes a pressure delay block 901, a vertical guiding block 903, and a guide rail 101a. Here, the pressure delay block 901 is installed so that the upper side of the upper blade 70 is accommodated between the actuator 905 and the upper blade 70. The upper and lower guiding blocks 903 and the guide rails 101a have upper blades 70 when the upper blade 70 is moved by the hydraulic cylinder 905 and when the stone 5 is cut while the large hydraulic pressure is temporarily applied. In order to maintain a stable position of the guide rail 101a is coupled vertically to the body 10 in the space 101 so as to be parallel to the vertical movement direction of the upper blade 70, the upper and lower guiding block ( 903) one side is interposed and coupled between the actuator 905 and the upper blade 70, the other side is coupled to the guide rail 101a to be movable.

On the other hand, in the present embodiment, the sensor 26, as shown in Figure 5, the upper blade 70 is coupled to the pressure delay block 901 is received so as to be movable therein so that the upper end of the upper blade 70 The position in contact with the pressing delay block 901 is detected. That is, as described above with reference to Figure 1, by placing a plurality of sensors 26a, 26b, 26c in sequence to detect that the upper edge 70 in contact with the stone 5 in the final sensor 26c, On the sensors 26a and 26b (of course, the number of such sensors can be set as necessary), the hydraulic pressure for the transfer of the upper blade 70 is applied, and the stone 5 in the final sensor 26c. Although it is possible to accumulate hydraulic pressure for cutting, the sensor 26 is installed to detect the position where the upper blade 70 is in contact with the stone 5 as in the present embodiment, thereby cutting the stone 5. The accumulation of hydraulic pressure can be achieved.

The stone cutting device according to the present embodiment is a hydraulic line in a state in which the solenoid valve 24 blocks the hydraulic line 22 when the upper blade 70 contacts the pressure delay block 901 from the sensor 26. After the hydraulic pressure is continuously supplied to the 22 to be of a predetermined hydraulic pressure level, the solenoid valve 24 opens the hydraulic line 22 so that the hydraulic cylinder is momentarily operated downward, thereby cutting the stone 5. Done.

6 to 9 are views for sequentially explaining the operating state of the stone cutting device according to a preferred embodiment of the present invention, Figure 10 is to enlarge the state in which the upper blade is in contact with the stone in Figure 9 stone is cut It is a figure for demonstrating a form.

6 to 10 in the state of recognizing the state, the stone cutting device according to a preferred embodiment of the present invention, when the stone 5 for the cutting process as shown in Figure 7 in the state as shown in Figure 6 { Of course, such entry of the stone (5) can be detected using a sensor}, as shown in Figure 8, a certain amount of hydraulic pressure is supplied to the hydraulic cylinder 905 through the hydraulic line 22 The rod of the cylinder 905 is extended in the vertical direction, the guiding block 903 and the upper blade 70 is moved in the lower direction.

9 and 10, the solenoid valve 24 of the controller 28 is in the state in which the upper blade 70 moves downward and is in contact with the stone 5 seated on the seating plate 30. The hydraulic line 22 is closed by the control. At this time, the hydraulic pressure is continuously supplied to the hydraulic line 22 while the solenoid valve 24 is closed by the control of the controller 28 (at this time, the hydraulic pressure is accommodated in the hydraulic line 22). To accumulate and may be applied or a separate expansion tube (not shown) may be applied. Then, when the predetermined hydraulic pressure is reached, the solenoid valve 24 opens the hydraulic line 22 by the control of the controller 28 so that the accumulated hydraulic pressure is supplied to the hydraulic cylinder 905. Therefore, the hydraulic cylinder 905 is instantaneously extended in the vertical direction and at the same time the upper side of the inner side of the pressure delay block 901 transmits a strong impact to the upper side of the upper blade 70 accommodated therein, the seating plate 30 The upper blade 70 in contact with the upper surface of the stone (5) seated on the) receives a strong impact from the pressure delay block 901 to cut the stone (5) at a predetermined interval, the cut stone (5) ), As shown in FIG. 2, irregular surfaces are formed, respectively.

11 is a view for explaining the automatic stone supply unit in the stone cutting device according to an embodiment of the present invention.

Referring to Figure 11, the stone cutting device according to a preferred embodiment of the present invention by combining the automatic stone supply unit 100 to realize the automation from the transfer process of the processed stone or waste stone to the cutting process to safely and quickly cut the processed stone or waste stone To help.

The stone automatic supply unit 100 for this purpose comprises a transport belt 130 and a loader 150 which are reciprocally rotated by the driving roller 111 and the driven roller 113 which are rotated by the driving motor 115. At this time, the transfer belt 130 is disposed on the outside of the body 10, is installed at the same height as the seating plate 30 to transfer the stone (5) from the outside to the seating plate (30). In addition, the loader 150 sequentially applies the stone 5 transferred through the transfer belt 130 by applying a hydraulic cylinder or the like to the stone moving direction of the space 101. Of course, the driving of the transport belt 130 and the operation of the loader 150 is to be automatically controlled by the control unit 20 described above.

As described above, the stone cutting device according to a preferred embodiment of the present invention has been shown in accordance with the above description and drawings, but this is merely described for example and various changes and modifications within the scope without departing from the technical spirit of the present invention. It will be understood by those skilled in the art that it is possible.

1 is a view for explaining the technical idea of a stone cutting device according to the present invention;

Figure 2 is a perspective view showing a form in which the stone is cut by the stone cutting device of the present invention;

Figure 3 is a view for explaining the shape of the upper blade and the lower blade applied to the stone cutting device according to the present invention;

4 is a perspective view of a stone cutting device according to a preferred embodiment of the present invention;

Figure 5 is a cross-sectional view for explaining the relationship between the upper blade, the moving member and the sensor in the stone cutting device according to an embodiment of the present invention;

6 to 9 are views for sequentially explaining the operating state of the stone cutting device according to a preferred embodiment of the present invention;

FIG. 10 is a view for explaining a form in which the stone is cut by enlarging the state in which the upper blade is in contact with the stone in FIG. 9; FIG.

11 is a view for explaining the automatic stone supply unit in the stone cutting device according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

5: stone

10: body

101: space part

101a: guide rail

20: control unit

22: hydraulic line 24: solenoid valve

26 sensor 28 controller

30: seating plate

301: Slit

50: lower blade

70: upper blade

90: Shanghai East member

901: pressure delay block 903: upper and lower guiding block

905: Actuator, Hydraulic Cylinder

100: stone automatic supply unit

130: conveying belt 150: loader

Claims (6)

In the stone cutting device for cutting the stone 5 to a predetermined length, A body 10 having a space 101 open in the direction in which the stone 5 is moved; A lower blade 50 coupled to the body 10 at the lower side of the space portion 101 to support the cut portion of the stone 5; An upper blade 70 disposed on the space portion 101 so as to face the lower blade 50; In order to move the upper blade 70 in the vertical direction has an actuator 905 disposed above the space portion 101 and coupled to the body 10, the stone 5 is the lower blade 50 A moving member (90) for cutting the stone (5) by moving the upper blade (70) downward by driving of the actuator (905) when positioned on the; A control unit 20 for controlling the operation of the actuator 905, The actuator 905 is a hydraulic cylinder, The control unit 20 and the solenoid valve 24 is installed on the hydraulic line 22 to supply the hydraulic pressure to the hydraulic cylinder, Sensor 26 for detecting the downward movement position of the upper blade 70, The solenoid valve 24 blocks the hydraulic line 22 when the position of the upper blade 70 is input from the sensor 26 and the upper blade 70 is in contact with the stone 5. After the hydraulic pressure is continuously supplied to the hydraulic line 22 in a state so as to have a predetermined size of hydraulic pressure, the solenoid valve 24 opens the hydraulic line 22 so that the hydraulic cylinder is momentarily operated downward. Equipped with a controller 28, The lower blade 50 is inserted into the slit 301 is formed, is located in the space 101 is coupled to the body 10, the seating plate 30 for supporting the stone (5) Further comprising, to be cut while transferring the stone (5) to a predetermined length in a state placed on the seating plate 30, The shank moving member 90 is a guide rail 101a coupled to the body 10 in the space portion 101 perpendicular to the vertical movement direction of the upper blade 70, and One side is interposed between the actuator 905 and the upper blade 70 is coupled, the other side is further provided with a top and bottom guiding block 903 is coupled to the guide rail 101a so as to be movable; A transfer belt 130 disposed at an outer side of the body 10 and installed at the same height as the seating plate 30 to transfer the stone 5 from the outside to the seating plate 30; The stone 5 further comprises a stone automatic supply unit 100 having a loader 150 for sequentially pushing the stone 5 transferred through the belt 130 in the stone moving direction of the space 101. Cutting device. In the stone cutting device for cutting the stone 5 to a predetermined length, A body 10 having a space 101 open in the direction in which the stone 5 is moved; A lower blade 50 coupled to the body 10 at the lower side of the space portion 101 to support the cut portion of the stone 5; An upper blade 70 disposed on the space portion 101 so as to face the lower blade 50; In order to move the upper blade 70 in the vertical direction has an actuator 905 disposed above the space portion 101 and coupled to the body 10, the stone 5 is the lower blade 50 A moving member (90) for cutting the stone (5) by moving the upper blade (70) downward by driving of the actuator (905) when positioned on the; A control unit 20 for controlling the operation of the actuator 905, The shank member 90 is further provided with a pressure delay block 901 which is installed to be interposed between the actuator 905 and the upper blade 70 to accommodate the upper side of the upper blade 70, The actuator 905 is a hydraulic cylinder, The control unit 20 and the solenoid valve 24 is installed on the hydraulic line 22 to supply the hydraulic pressure to the hydraulic cylinder, Sensor 26 for detecting a position where the upper end of the upper blade 70 abuts the pressure delay block 901, When the upper blade 70 is in contact with the pressure delay block 901 from the sensor 26, the hydraulic pressure to the hydraulic line 22 in the state that the solenoid valve 24 blocked the hydraulic line 22 The controller 28 is provided with the solenoid valve 24 to open the hydraulic line 22 so that the hydraulic cylinder is momentarily operated downward after the supply of the hydraulic pressure is continued. The lower blade 50 is inserted into the slit 301 is formed, is located in the space 101 is coupled to the body 10, the seating plate 30 for supporting the stone (5) Further comprising, to be cut while transferring the stone (5) to a predetermined length in a state placed on the seating plate 30, The shank moving member 90 is a guide rail 101a coupled to the body 10 in the space portion 101 perpendicular to the vertical movement direction of the upper blade 70, and One side is interposed between the actuator 905 and the upper blade 70 is coupled, the other side is further provided with a top and bottom guiding block 903 is coupled to the guide rail 101a so as to be movable; A transfer belt 130 disposed at an outer side of the body 10 and installed at the same height as the seating plate 30 to transfer the stone 5 from the outside to the seating plate 30; The stone 5 further comprises a stone automatic supply unit 100 having a loader 150 for sequentially pushing the stone 5 transferred through the belt 130 in the stone moving direction of the space 101. Cutting device. delete delete delete delete

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