KR100941777B1 - Moving type cutting apparatus and moving type cutting system and method using the same - Google Patents

Abstract

The present invention discloses a mobile cutter and a control system for cutting a moving object. Mobile cutter of the present invention, the mainframe; A moving frame installed to reciprocate in the first direction with respect to the main frame; First driving means for driving the moving frame; A blade support part installed to reciprocate in the second direction with respect to the moving frame and having a blade; And a second driving means for driving the blade support, and cutting the object while moving the moving frame in the same direction as the object.

According to the present invention, since the blade moves at the same speed as the object while cutting the object while the blade operates at high speed, a smooth cutting surface can be obtained as well as a risk of causing deformation of the trailing object or impeding progress. . In addition, it is necessary to cut a relatively short length quickly, so that it can be applied stably in cutting shops or sampling where high speed operation is inevitable.

Cutting machine, rolling line

Description

Moving type cutting apparatus and moving type cutting system and method using the same}

The present invention relates to a mobile cutter for cutting a moving object, and more particularly, to a mobile cutter for cutting a moving strip installed on a rolling line, a system for controlling the operation of the cutter, and a cutting method using the same.

In general, the rolling process rolls the strip 10 continuously fed through the conveyor 20 to the target thickness as shown in FIG. 1, and then rolls the coil to a tension reel 40 after winding the coil to a target thickness. It proceeds in the order of manufacture.

And between the rolling mill 20 and the tension reel 40 is disposed a cutter 30 for cutting the strip 10 to the required length.

On the other hand, for the continuous process, the rear end of the preceding strip and the front end of the trailing strip may be welded to the line. In this case, since the weld should not be included in the final product, the weld passed through the rolling mill 20 using the cutter 30. Must be removed. Specifically, a section of a predetermined length is cut out before and after the welded portion.

Therefore, the strip after the rolling process is divided into a preceding strip and a trailing strip and finally wound on each tension reel 40.

However, in the related art, since the plate 10 having the plate 10 is being moved by using the cutter 30 in a fixed state, the cutting surface is not smooth and there is a problem of causing deformation by preventing the progress of the trailing strip.

In particular, the silicon steel sheet used as the core of the transformer has a thickness of only 0.15 to 0.5 mm while the width is about 1300 mm, which is more likely to cause the deformation of the trailing strip.

In order to solve this problem, a short pendulum cutter which cuts an object instantaneously while moving at the same speed as an object has been introduced. However, since the pendulum cutter hardly synchronizes the moving speed with the object, the shape defect of the object frequently occurs, and it is difficult to cut a short section quickly as in the case of cutting the front and back of the welded part.

And these problems are not limited to rolling lines, but appear in a similar form in all processes of cutting moving objects.

The present invention has been made to solve this problem, and an object thereof is to enable smooth cutting of moving objects. In addition, the purpose is to be able to effectively remove the front and back of the welding portion of the object. In addition, the purpose is to be able to easily take a sample of a relatively short length.

The present invention to solve the above problems, the mainframe; A moving frame installed to reciprocate in the first direction with respect to the main frame; First driving means for driving the moving frame; A blade support part installed to reciprocate in the second direction with respect to the moving frame and having a blade; It includes a second driving means for driving the blade support, and provides a mobile cutter for cutting the object while moving the moving frame in the same direction as the object.

In the mobile cutter of the present invention, the moving frame may be coupled to the main frame by a linear guide installed along the first direction. In this case, the movable frame includes two vertical members and an upper horizontal member and a lower horizontal member connecting upper and lower ends of the two vertical members, respectively, and the linear guide includes the main frame and the two vertical members. It may be characterized in that it is provided between each.

In addition, the movable frame may be provided with a guide shaft penetrating the upper horizontal member and the lower horizontal member, and the blade support portion may be coupled to the guide shaft for a stable lifting motion of the blade support portion.

The first driving means may include a servo motor fixed to the main frame and a ball screw connected to the servo motor and extending in the first direction, and the moving frame is mounted on the nut part of the ball screw to reciprocate. It may be characterized by exercising.

In addition, the second driving means, the hydraulic cylinder is fixed to the moving frame, the rod is connected to the blade support; It may be characterized in that it comprises a servo valve for controlling the operation of the hydraulic cylinder.

In addition, the moving frame may be characterized in that the distance sensor for detecting the moving distance of the blade support.

In addition, a conveyor assembly including a conveyor belt and a conveyor motor for collecting a cut portion of the object may be installed at an outlet side of the object in the moving frame, and the conveyor assembly may be fixed to the moving frame. . At this time, the lower portion of the conveyor belt may be provided with a magnet for preventing the rocking of the cut object.

In addition, a guide supporter for preventing sagging of the object is installed at the inlet side of the object in the moving frame, the guide supporter may be characterized in that it is fixed to the moving frame.

In another aspect, the present invention, the main frame, a movable frame provided to reciprocate in the first direction with respect to the main frame, the first driving means for driving the movable frame, and the reciprocating in the second direction with respect to the movable frame A movable cutter which is installed so as to include a blade support part having a blade and a second driving means for driving the blade support part, and which cuts the object while moving the moving frame in the same direction as the object; A welding part sensor installed upstream of the movable cutter based on the moving direction of the object; A cutter control unit connected to the welding unit sensor and controlling an operation of the first driving unit and the second driving unit; It is connected to the cutter control unit, and provides a cutter control system including a movement distance sensing means for sensing the movement distance of the object.

In the cutter control system, the movement distance detecting means, the pinch roller to rotate in contact with the upper surface of the object; A driving cylinder for raising and lowering the pinch roller by the control of the cutter control unit; It may include an encoder for detecting the rotational speed of the pinch roller and transmits the detection information to the cutter control unit.

In another aspect, the present invention provides a method for cutting a moving object using the cutter control system described above, the first step of passing the object through the movable cutter at a first speed; A second step of the welding part sensor detecting a welding part of the object; A third step of lowering the moving speed of the object to a second speed; A fourth step of starting to detect a moving distance of the object by using the moving distance detecting means; A fifth step of advancing the moving frame in the same direction as the object; A sixth step of cutting the first position of the object by the blade; A seventh step of moving the moving frame to a reference position; An eighth step of advancing the moving frame in the same direction as the object; A ninth step of cutting the second position of the object by the blade; Provided is a cutting method of a moving object including a tenth step of reversing the moving frame to a reference position.

According to the present invention, since the blade moves at the same speed as the object while cutting the object while the blade operates at high speed, a smooth cutting surface can be obtained as well as a risk of causing deformation of the trailing object or impeding progress. .

In addition, it is necessary to cut a relatively short length quickly, so that it can be applied stably in cutting shops or sampling where high speed operation is inevitable.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 to 4 are a front view, a side cross-sectional view, and a plan view of a mobile cutter 100 according to an embodiment of the present invention, respectively. However, in order to help the understanding of the drawings it is noted that the part irrelevant to the nature of the invention boldly omitted.

The movable cutter 100 according to the embodiment of the present invention is equipped with a main frame 110 supporting the entire apparatus and an upper blade 135 for cutting an object (for example, a strip) is mounted and moved relative to the main frame 110. It includes a blade assembly 130 that is possibly coupled, and a servo motor 150 for moving the blade assembly 130.

The blade assembly 130 includes a moving frame 131 coupled to move in a first direction (horizontal direction) with respect to the main frame, and a blade support part coupled to move in a second direction (vertical direction) with respect to the moving frame 131 ( 134, a hydraulic cylinder 132 for driving the blade support 134. The upper blade 135 is mounted at the lower end of the blade support 134, and the lower blade 141 corresponding to the upper blade 135 is installed at the lower moving frame 131.

The moving frame 131 includes two vertical members 131-1 parallel to each other and an upper horizontal member 131-2a and a lower horizontal member 131-connecting upper and lower ends of the vertical members 131-1, respectively. 2b) to form a substantially rectangular grid. In addition, each vertical member 131-1 is coupled to the main frame 110 by using the linear guide 120 for mobility.

At this time, the guide block 121 of the linear guide 120 is preferably coupled to the moving frame 131, the guide rail 122 is coupled to the main frame 110, but may be reversed.

The hydraulic cylinder 132 is installed above the upper horizontal member 131-2a of the moving frame 131, and the rod 133 of the hydraulic cylinder 132 penetrates the upper horizontal member 131-2a to support the blade. 134 is connected.

The hydraulic cylinder 132 is preferably a double rod system capable of a stable lifting movement, the movement is controlled by the servo valve 139. Although not shown, the servovalve 139 selectively applies the hydraulic pressure of the fluid supply unit 138 to the upper and lower piston portions of the hydraulic cylinder 132 to control the high speed vertical movement of the upper blade 135 while the upper blade 135 It determines the falling position or the rising position. The servo valve 139 and the fluid supply 138 is preferably installed in the moving frame 131.

On the other hand, for the stable lifting movement of the blade support 134, the movable frame 131 is provided with a guide shaft 136 in the vertical direction penetrating the upper horizontal member (131-2a) and the lower horizontal member (131-2b), The side end of the blade support 134 is connected to the guide shaft 136.

If the blade support 134 is to be raised and lowered together with the guide shaft 136, the side end of the blade support 134 is fixed to the guide shaft 136, as shown, the upper horizontal member (131-2a) And the lower horizontal member (131-2b) is provided with a ball bush 137 through which the guide shaft 136 is coupled.

Therefore, according to the operation of the hydraulic cylinder 132, the blade support portion 134 and the guide shaft 136 fixed to the side end is moved up and down relative to the moving frame 131.

If the guide shaft 136 is fixed to the moving frame 131, a ball bush through which the guide shaft 136 passes must be installed at the side end of the blade support 134.

Meanwhile, the distance sensor 140 is installed in the moving frame 131 to control the lifting distance of the upper blade 135. The distance sensor 140 preferably uses a linear variable differential transformer (LVDT), and the detection result is transmitted to the servovalve control unit 220 (see FIGS. 5 and 6) for controlling the servovalve 139. 132 is used to control the working distance.

In the present invention, one end of the LVDT is connected to the upper horizontal member 131-2a of the moving frame 131, and the other end is connected to the blade support 134, but the specific connection method may be different.

The servo motor 150 is for reciprocating the moving frame 131 in the first direction (horizontal direction) by rotating the ball screw 152, and is fixedly installed on the main frame 110, and the nut part of the ball screw 152. The moving frame 131 is mounted.

As described above, the movement frame 131 is movably coupled to the main frame 110 using the linear guide 120 to guide the reciprocation of the movement frame 131 by the servomotor 150.

The reciprocating section D of the moving frame 131 is determined by various factors such as the speed of the strip 10, but is preferably limited to about 500 mm. In order to prevent the moving frame 131 from leaving the reciprocating section D, the main frame 110 is provided with a first limit sensor 161 and a second limit sensor 162 spaced apart by the reciprocating section D. Each of the limit sensors 161 and 162 detects the sensing part of the moving frame 131, and the detection result is transmitted to the servo motor controller 220 (see FIGS. 5 and 6) for controlling the servo motor 150. 150 is used to control the operation.

The lower blade 141 corresponding to the upper blade 135 is installed on the lower horizontal member 131-2b of the moving frame 131, and the upper blade 135 and the lower blade 141 are shown in FIG. 3. The strip 10 is moved through the space between.

The guide supporter 180 is installed on the moving frame 131 so that the strip 10 does not sag even when the moving frame 131 moves back and forth. 3 and 4, the guide supporter 180 is installed at the inlet side to which the strip 10 enters, and the number of installation or the width of the guide supporter 180 may be determined in consideration of the width of the strip 10. Can be.

In this case, the guide supporter 180 is coupled to the lower horizontal member 131-2b to move together with the moving frame 131.

On the other hand, the conveyor assembly 170 for separating and discharging the cut welded portion or the collected sample from the original rolling line is installed on the exit side of the moving frame 131.

The conveyor assembly 170 extends from the lower horizontal member 131-2b of the moving frame 131 to the outlet side and is coupled to the conveyor support unit 173, the conveyor belt 172 supported by the conveyor support unit 173, It includes a conveyor motor 171 for providing a driving force to the conveyor belt (172).

Therefore, the conveyor assembly 170 also moves in the front-rear direction along with the moving frame 131. In particular, in order to stably discharge the cut welds or samples, it is preferable to install a permanent magnet or an electromagnet in the lower portion of the conveyor belt 172.

Although only one conveyor belt 172 may be installed, it is preferable to install a plurality of conveyor belts 172a, 172b, and 172c to transfer a wide rolling strip. In this case, the coupler 174 may be used to simultaneously drive the plurality of conveyor belts 172a, 172b, and 172c by using only one conveyor motor 171.

Hereinafter, a control system for controlling the operation of the mobile cutter 100 having the above-described configuration and a cutting method using the same will be described.

In the present invention, to control the operation of the mobile cutter 100 configures a control system as shown in FIG.

That is, in the rolling line in which the strip 10 continuously fed through the conveyor is rolled to the target thickness by passing through the rolling mill 20, and then wound around the tension reel 40, the rolling mill 20 and the tension reel ( The cutter 100 of the present invention is disposed between the cutters 40 and the cutter controller 200 for controlling the operation of the cutter 100 is provided.

Between the cutter 100 and the rolling mill 20, a weld sensor 300 for detecting the weld P0 of the strip 10 is installed. The welding part sensor 300 is for detecting the presence of the welding part P0, and thus the detection method is not limited. Therefore, the welding part P0 may be detected using the thickness of the strip 10, or a special identification mark (for example, perforation) may be formed around the welding part P0 and then detected using the same.

In addition, the pinch roller 400 for detecting the moving speed of the strip 10 and the encoder 500 for detecting the rotational speed or rotation angle of the pinch roller 400 is installed. In the present invention, in order to accurately measure the moving distance of the strip 10, an encoder 500 of 5000 pulses per revolution was used, but it is not necessarily limited thereto.

The pinch roller 400 is installed to move up and down by the driving cylinder 410, and the driving cylinder 410 is controlled by the cutter control unit 200.

The cutter control unit 200 includes a servo motor control unit 210 and a servo valve control unit 220 as shown in FIG. 6.

The servo motor controller 210 advances the moving frame 130 of the cutter 100 to the cutting position C1 or to the reference position C0 along the moving direction (first direction) of the strip 10. It serves to control the servomotor 150.

The servovalve control unit 220 controls the servovalve 139 to lower or raise the upper blade 135 at high speed at the strip cutting position C1, and feeds back the detection result of the distance sensor 140 to feed the upper blade. The elevation distance of the 135 is controlled. In the present invention, the PID control method is adopted for servo valve control, but the present invention is not limited thereto.

Although not shown, the servomotor control unit 210 and the servovalve control unit 220 each include a control algorithm and a microcomputer for storing input data, an interface for connecting to external elements, and other peripheral circuits.

In addition, the servo motor control unit 210 and the servovalve control unit 220 may use separate micoms, or one micom may be used in common. In the latter case, the functions of both are clearly distinguished.

Meanwhile, after the moving frame 131 is moved to the cutting position C1 by the servo motor control unit 210, the servo valve control unit 220 should operate the upper blade 135. When the cutting is completed, the servo motor control unit ( 210 has to move the moving frame 131 back to the reference position (C0). Therefore, since the servo motor control unit 210 and the servo valve control unit 220 should be closely interlocked with each other, the servo motor control unit 210 and the servo valve control unit 220 should be connected to transmit and receive a predetermined control signal.

Meanwhile, since the moving speed of the strip 10 must be lowered before the cutting process is performed in the mobile cutter 100 of the present invention, the above-described cutting machine controller 200 controls the moving speed of the strip of the rolling line, etc. (not shown). It is also preferably connected to).

Hereinafter, a process of cutting the welding part P0 by the cutter 100 of the present invention will be described in detail with reference to the flowchart of FIG. 7 and FIGS. 2 to 6.

First, before the cutter 100 operates, the transmission speed of the strip 10 of the rolling line moves at a high speed of about 100 m / min, and this transmission speed is controlled by a main control part (not shown) of the rolling line. (ST11)

When the welding part P0 passes through the welding part sensor 300 while the strip 10 moves at high speed, the welding part sensor 300 transmits a detection signal to the servo motor control part 210 of the cutter control part 200. The detection method of the weld P0 is not limited, but it is easier to form perforations around the weld and detect the same. (ST12)

When the weld P0 is detected, the moving speed of the strip 10 should be lowered to about 30 m / min in order to cut the strip 10. However, since the moving speed of the strip 10 is controlled by the main control part (not shown), the cutter control unit 200 transmits the welding detection information to the main control part (not shown) in step ST12, or the welding sensor 300 detects the welding part. The information should be sent to the main fisherman (not shown). (ST13)

When the moving speed of the strip 10 is lowered to the set value, the cutter control unit 200 controls the drive cylinder 410 to lower the pinch roller 400 to contact the upper surface of the strip 10. The pinch roller 400 is lifted to the upper part of the strip 10 by the driving cylinder 410 in the idle state, and the rotation speed and the rotation angle after contacting the strip 10 are driven by the encoder 500. It is detected and transmitted to the servo motor control unit 210.

The servo motor controller 210 receives data from the encoder 500 and calculates a moving distance and a moving time of the strip 10. (ST14)

Through the information calculated in step ST14, the servo motor control unit 210 moves frame 131 of the cutter 100, specifically, the upper blade 135 and the lower blade 141 (hereinafter referred to as 'blade pair') Moves forward in the direction of travel of the strip 10 at the reference position C0.

Before the blade pairs 135 and 141 reach the cutting position C1, the moving speeds of the moving frame 131 and the strip 10 are matched to, for example, 30 m / min, and the servo motors are in the same state. The control unit 210 transmits a predetermined control signal to the servovalve control unit 220.

Then, the servovalve control unit 220 controls the servovalve 139 to operate the upper blade 135.

As such, when the blade pairs 135 and 141 move at the same speed as the strip 10 and the cutting process is performed, smooth cut surfaces may be obtained without disturbing the progress of the strip 10.

When cutting the welded portion P0 of the strip 10, the first position P1 of the tip of the welded portion P0 and the second position P2 of the rear end of the welded portion P0 must be sequentially cut as shown in FIG. do. Therefore, the moving frame 131 moves in consideration of the time when the first position P1 of the strip 10 reaches the cutting position C1 and the time when the blade pairs 135 and 141 reach the cutting position C1. Determine the speed.

Since the distance between the reference position (C0) and the weld sensor 300 of the blade pair (135,141), the cutting position (C1) and the distance of the weld sensor 300, the moving speed of the strip 10, etc. can be found The movement speed of 131 may be determined. (ST15)

Accordingly, the blade pairs 135 and 141 move and cut the first position P1 of the strip 10 at the cutting position C1. At this time, in order to smooth the cutting surface and not interfere with the progress of the strip 10, the cutting should be made in about 0.2 seconds when moving 30m / min.

To this end, the upper blade 135 has to be lowered and raised at a high speed. In the present invention, the hydraulic cylinder 132 and the servovalve 139 are used to implement this. The preceding strip after cutting is wound on the tension reel 40. (ST16)

After cutting the first position P1, the moving frame 131, specifically, the blade pairs 135 and 141, must be reversed as quickly as possible to cut the second position P2. However, since the moving frame 131 that is moving forward cannot stop immediately at the cutting position C1, the servo motor controller 210 decelerates the moving frame 131 immediately after the upper blade 135 is operated. The motor stops at the position C2 and then moves back to the reference position C0. (ST17)

The trailing strip continues to advance even after cutting the first position P1, so that the servomotor control unit 210 reaches the reference position C0 to cut the second position P2 of the strip 10 subsequently. Advances (135, 141) in the direction of travel of the strip (10) again.

Even in this case, before the blade pairs 135 and 141 reach the cutting position C1, the moving speeds of the moving frame 131 and the strip 10 are matched to, for example, 30 m / min, and the upper blade ( 135 to cut the second position (P2) of the strip (10). The cut welding portion is transferred to the front collecting portion by the conveyor belt 172, and the trailing strip at the rear end thereof is continuously advanced and wound around the tension reel 40. (ST18, ST19)

After cutting the second position P2, the blade pairs 135 and 141 are stopped at the final position C2 and then moved back to the reference position C0. (ST20)

After cutting the welding part P0 through such a process, the overall moving speed of the rolling line must be increased to, for example, 100 m / min. For this purpose, after the welding part cutting process is completed, the cutter control part 200 performs the rolling line. It is preferable to transmit the cutting completion information to the main control unit (not shown). (ST21)

As a specific example, a servomotor 150 of model name VLBST-X10K20 (rated capacity of 10 KW), a reducer of 1/20, an encoder 500 of 5000 pulses per revolution, and a reciprocating section D of the blade pairs 135 and 141 are used. ) 500mm, the distance between the weld sensor 300 and the cutting position (C1) is 1000mm, 30m / min in a state where the distance between the first position (P1) and the second position (P2) of the strip 10 is set to 1000mm The process of cutting the strip 10 moving at a speed of 2 times in 0.2 sec was able to proceed stably.

However, the above specification may vary depending on the load of the moving frame 131, the moving speed of the strip 10, the cutting length, and the like.

In the above, the method of cutting the welded part has been described. However, even when a sample having a predetermined length is taken from the moving strip 10, the two points must be continuously cut while moving the blade pairs 135 and 141 as described above. In this case, however, information about the length to be cut and the number of sheets to be cut must be input to the microcomputer not shown in the cutter control unit 200, for example, the servo motor control unit 210.

In addition, while the above described the preferred embodiment of the present invention using a mobile cutter of a rolling line, the present invention is not limited to only a cutter for a rolling line, and thus may be applied to other types of cutters for cutting moving objects. .

The above-described elements, embodiments, and drawings of the present invention are provided only to help general understanding of the present invention, and thus, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible from these descriptions. Therefore, the scope of the present invention will be included in the claims to be described later and all those having equivalent or equivalent modifications.

1 is a general configuration of a rolling line

2 is a front view of a cutter according to an embodiment of the present invention;

3 is a side cross-sectional view of a cutter according to an embodiment of the present invention;

4 is a plan view of a cutter according to an embodiment of the present invention;

5 is a block diagram of a cutter control system according to an embodiment of the present invention;

6 is a block diagram of a cutter control unit

7 is a flowchart illustrating a cutter control method according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: movable cutter 110: mainframe

120: linear guide 130: blade assembly

131: moving frame 132: hydraulic cylinder

133: rod 134: blade support

135: upper blade 136: guide shaft

137: ball bush 138: fluid supply

139: servo valve 140: distance sensor

141: lower blade 150: servo motor

152: ball screw 161: first limit sensor

162: second limit sensor 170: conveyor assembly

171: conveyor motor 172: conveyor belt

173: conveyor support 180: guide supporter

200: cutter control unit 210: servo motor control unit

220: servo valve control unit 300; Welded part sensor

400: pinch roller 410: drive cylinder

500: encoder

Claims (13)

delete delete Mainframe; A movable frame installed to reciprocate in the first direction with respect to the main frame, the movable frame including two vertical members spaced apart from each other, and an upper horizontal member and a lower horizontal member connecting the two vertical members from above and below; First driving means for moving the moving frame; A blade support part installed to reciprocate in the second direction with respect to the moving frame and having a blade; Second driving means for moving the blade support; Included, a movable cutter for cutting the object while moving the moving frame in the same direction as the object The method of claim 3, The movable frame is provided with a guide shaft penetrating the upper horizontal member and the lower horizontal member, the blade support portion coupled to the guide shaft for a stable lifting movement of the blade support portion. The method of claim 3, The first driving means includes a servo motor fixed to the main frame and a ball screw connected to the servo motor and extending in the first direction, The moving frame is mounted on the nut portion of the ball screw movable cutter, characterized in that the reciprocating motion The method of claim 3, The second driving means, A hydraulic cylinder fixed to the moving frame and having a rod connected to the blade support; A servovalve controlling the operation of the hydraulic cylinder; Removable cutting machine comprising a The method of claim 3, The cutting machine, characterized in that the moving frame is provided with a distance sensor for detecting the moving distance of the blade support portion. The method of claim 3, A conveyor assembly including a conveyor belt and a conveyor motor for collecting the cut portion of the object is installed at the exit side of the object in the moving frame, and the conveyor assembly is fixed to the moving frame. The method of claim 8, A mobile cutter, characterized in that the lower portion of the conveyor belt is installed with a magnet for preventing rocking of the cut object. The method of claim 3, The guide supporter for preventing the object from sagging is installed at the inlet side of the moving object in the moving frame, the guide supporter is movable cutter, characterized in that fixed to the moving frame The mainframe, A moving frame installed to reciprocate in the first direction with respect to the main frame; First driving means for moving the moving frame; A blade support part installed to reciprocate in the second direction with respect to the movable frame, the blade supporting part including a blade; Second driving means for moving the blade support; Includes, a movable cutter for cutting the object while moving the moving frame in the same direction as the object; A welding part sensor installed upstream of the movable cutter based on the moving direction of the object; A cutter control unit connected to the welding unit sensor and controlling an operation of the first driving unit and the second driving unit; A moving distance detecting means connected to the cutter control unit and detecting a moving distance of the object; Removable cutting system comprising a The method of claim 11, The moving distance detecting means, A pinch roller that rotates in contact with the upper surface of the object; A driving cylinder for raising and lowering the pinch roller by the control of the cutter control unit; An encoder for detecting the rotation speed of the pinch roller and transmitting detection information to the cutter control unit; Removable cutting system comprising a In the method of cutting the moving object using the mobile cutting system of claim 11, A first step of the object passing through the movable cutter at a first speed; A second step of the welding part sensor detecting a welding part of the object; A third step of lowering the moving speed of the object to a second speed; A fourth step of obtaining a moving distance of the object by using the moving distance detecting means; A fifth step of advancing the moving frame in the same direction as the object; A sixth step of cutting the first position of the object by the blade; A seventh step of moving the moving frame to a reference position; An eighth step of advancing the moving frame in the same direction as the object; A ninth step of cutting the second position of the object by the blade; A tenth step of reversing the moving frame to a reference position; Cutting method of the moving object including a

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