KR200303043Y1 - A cutting machine of edge bender - Google Patents

Abstract

The present invention relates to a tape cutting device of an edge bending machine, which is installed in a semi-automatic edge bending machine for cutting a tape attached to a side of a furniture, so that the tape can be cut quickly during the movement of the panel to which the tape is attached. A semi-automatic edge bending machine for cutting a tape attached to a panel, comprising: a sensing device for detecting front and rear ends of a panel installed and transported on the edge bending machine body; Receiving a signal sensed by the sensing device through a controller is characterized in that it comprises a cutting device having a cutter unit for cutting the tape attached to the panel. It has the advantage of supplying to the consumer by automating a semi-automatic edge bending machine at a low price without purchasing, and having the small size, easy installation and handling, and excellent compatibility that can be easily applied to various types of edge bending machines. It works.

Description

Tape Cutting Device of Edge Bending Machine {A CUTTING MACHINE OF EDGE BENDER}

The present invention relates to an edge bending machine for cutting tapes attached to various furniture panels. More specifically, the tape bending machine is installed in a semi-automatic edge bending machine for cutting tapes attached to the side of furniture. The present invention relates to a tape cutting device of an edge bending machine designed to cut quickly.

Recently, various types of furniture panels have been provided to consumers due to the advanced development of wood processing technology. A commonly used edge bending machine is a woodworking machine used to cut a tape attached to the side of a furniture panel.

The edge bending machine adheres a thin tape along the sides of various furniture panels and cuts the tape according to the thickness of the panel.

Edge bending machines are classified into automatic and semi-automatic machines, which are equipped with trimming cutting devices and end cutting devices.

The trimming cutting device is a device for trimming the rest of the tape attached to the edge of the furniture panel, the end cutting device is a device for cutting the protruding portion extending back and forth of the furniture panel.

In general, the edge bending machine has a workbench installed first, and a plurality of moving roller groups or conveyors are installed thereon, and the furniture panel moves on the conveyor and has a predetermined thickness on the side of the furniture panel. The tape is glued.

One side of the workbench is provided with a roller on which a tape is wound to adhere the tape when the furniture panel is transported. At this time, the tape is bonded to the panel for furniture by a bonding device for automatically applying an adhesive.

The general work process of the edge bending machine as described above is performed as follows.

First, the furniture panel is placed on a plurality of transport roller groups or conveyors and transported (injection process), the tape is adhered to the side of the furniture panel using a bonding apparatus (adhesive process), and the tape protruding from the furniture panel is attached. Using the cutting device (total cutting process), trimming the rest of the upper and lower parts of the furniture panel that is continuously transported by using the trimming device, and trimming the tape protruding from the rear part of the trimmed furniture panel. It is made by cutting using a cutting device (back cutting process) and buffing the tape attached to the furniture panel using a buffing device (buffing process).

However, among the conventional edge bending machines as described above, the semi-automatic edge bending machine is cheaper but its performance is lower than that of the automatic edge bending machine. Due to the application of the material panel, the tape must be transported together with the cutting of the tape, so the loss of 200mm-400mm occurred when the material panel was inserted. There was a disadvantage of not satisfying the needs of the consumer who operates a workplace.

That is, since the cutter of the cutting device is installed to move with the panel in the state coupled to the elongated rod, the length of the machine is increased, the whole device is larger and heavier, and the installation place also takes up a lot of problems.

In addition, the conventional cutting device as described above has a problem in that the cutting device is replaced or the machine is processed according to the thickness of the panel to which the tape is attached.

In addition, since the cutting device is to be transported with the panel and cut the tape, the work takes a long time, there was a problem that the production efficiency is lowered.

Therefore, many consumers in the industry wanted to purchase an automatic edge bending machine, but due to the various problems described above, the automatic edge bending machine could not be purchased and used. Therefore, there is an urgent need for new equipment that can replace the automatic edge bending machine.

An object of the present invention is to provide a tape cutting device of an edge bending machine that can be automated by attaching to a semi-automatic edge bending machine to solve the problems as described above.

In addition, the present invention is to provide a tape cutting device of the edge bending machine designed to be freely installed regardless of the installation place of the installation because the detachable detachable to the edge bending machine.

It is an object of the present invention to provide a tape cutting device of an edge bending machine designed to mechanically detect a conveying panel by installing a sensing device having a link member.

Another object of the present invention is to provide a tape cutting device of an edge bending machine capable of quickly cutting a tape in place during transfer of a panel to which a tape is attached by freely attaching or detaching to a semi-automatic edge bending machine.

The object of the present invention is to provide a tape cutting device of an edge bending machine having excellent compatibility that can be flexibly coped with various types of edge bending machines by developing the device to be small, easy to transport and handle.

In addition, an object of the present invention is to provide a tape cutting device of the edge bending machine that can be easily converted from semi-automatic to automatic, and can reduce the loss interval generated when the input material panel is less than 100mm.

1 is a schematic view showing a state in which the tape cutting apparatus of the present invention is installed in a semi-automatic edge bending machine

Figure 2 is a perspective view showing a sensing device of the edge bending machine of the present invention

3 and 4 is an exploded perspective view showing the structure of the sensing device of the edge bending machine of the present invention

Figure 5 is a perspective view showing the structure of the tape cutting device of the edge bending machine of the present invention

Figure 6 is an exploded perspective view showing the structure of the tape cutting device of the edge bending machine of the present invention

7 is an operation showing a state in which the sensing device of the edge bending machine of the present invention detects the material panel

* Explanation of symbols for the main parts of the drawings

10: fixing bracket 12,13: long hole

14: home 16: step

18: fixed block 20, 32: fixed hole

22: fixed bar 24: pin ball

26: sensor support bracket 28: sensor bracket

30: fixed pin 34: pin ball

35,36: stopper 38: cushion member

40: front end detecting member body 42: spring

44: sensing piece 46: roller

48: rear end sensing member body 50: sensing piece

52: guide roller 54: link member

56: hinge pin 58: the first information bar

60: detection tip 62,63: rear end detection sensor body

64: guide groove 66: sensor fixing block

67,68: sensor 70: cutting device bracket

72: fixing groove 74: seating groove

76: LM guide 78: LM block

80: motor bracket 82: shaft ball

84: motor 86: cutter

88: cylinder 90: cylinder block

92: buffer block 94: buffer

96: U groove 98: second guide bar

100: detection unit body 102: rear end detection sensor

103: front end sensor 104: rear end detection member

106: shear detection member 200: detection device

300: cutting device 302: cutter unit

304: cylinder unit 306: buffer unit P: panel T: tape C: controller

The present invention for achieving the object as described above is a semi-automatic edge bending machine for cutting the tape attached to the panel to be transported, the sensing device for detecting the front end and the rear end of the panel is installed and transported to the edge bending machine body; Receiving a signal sensed by the sensing device through a controller, characterized in that it comprises a cutting device having a cutter unit for cutting the tape attached to the panel.

The sensing device includes a sensing unit body fixedly installed on a body of a semi-automatic edge bending machine, a front end and rear end sensing sensor fixedly installed on the sensing unit body and having a plurality of respective sensors, and one side of the sensing unit body. And a front end sensing member sensing a front end of the panel to be fixed and installed at the front panel, and a rear end sensing member sensing a rear end of the panel to be transported, wherein the front end sensing member has a sensing piece formed at an upper end thereof. A roller is installed at the lower end, and the front end detecting member body is installed to rotate around the fixing pin at the same time as the center of the fixing unit and is installed to move elastically by a spring. The lower end is fixed pin to the sensing unit body to rotate in contact with the conveyed panel A guide member fixed by the link member, a link member having one side fixed to the guide bar by a hinge pin and installed to move together, and a rear end sensing member body coupled to the other side of the link member and installed to move by the link member. It characterized in that the link member is formed in the "┗┒" shape and characterized in that the other side is formed with a long hole coupled with the rear end sensing member body.

The rear end sensing member body has a sensing piece formed at an upper end thereof, and a pin hole fixed to the sensing unit body is formed by a fixing pin, and at one side thereof, a guide roller is installed to be coupled with the long hole of the link member. And a roller for moving on a panel to be transferred, wherein the cutting device includes: a cutting device bracket installed on the semi-automatic edge bending machine; A cutter unit installed at an upper front end of the cutting device bracket so as to be freely moved back and forth; A cylinder unit fixedly installed at an upper rear end of the cutting device bracket and connected to be positioned at one rear of the cutter unit and simultaneously pushing and pulling the cutter unit; It characterized in that it comprises a buffer unit for mitigating the impact of the cutter unit is located between the cutter unit and the cylinder unit fixed to the upper end of the cutting device bracket to move.

Preferred embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a state in which a tape cutting apparatus of the present invention is installed in a semi-automatic edge bending machine, FIG. 5 is an exploded perspective view illustrating a structure of a tape cutting device of an edge bending machine of the present invention, and FIG. 6 is an exploded perspective view illustrating a structure of a tape cutting device of an edge bending machine of the present invention.

And, Figure 7 is an operation diagram showing a state in which the sensing device of the edge bending machine of the present invention detects the material panel.

First, referring to Figures 1 to 6, the tape cutting device of the edge bending machine of the present invention is a sensing device 200 for detecting a panel (P) attached to the tape (T) for transporting the conveyor, and the detection A cutting device 300 installed to receive a signal detected by the apparatus 200 and attached to the panel P to quickly cut it in place during transportation of the panel P, and the sensing device ( It is composed of a controller (not shown) that is electrically and electronically connected to send the signal sensed by the 200 to the cutting device 300 to operate the cutting device 300.

The tape cutting device of the edge bending machine of the present invention as described above is shown in FIG. 1 in the center rear of the device to cut the tape (T) attached to the panel (P) running from the right side to the left side of the semi-automatic edge bending machine By installing it, it shows the same function as the automatic edge bending machine and the cutting ability is more excellent for the price.

The sensing device 200 of the present invention has a sensing unit body 100 fixedly installed at an edge bending machine, and a rear end sensing member sensing the rear end of the panel P fixedly installed and transported to the sensing unit body 100 ( 104, a front end sensing member 106 for sensing a front end of the panel P fixedly installed and transported to the sensing unit body 100, and a panel P sensed by the rear end sensing member 104. And a rear end sensor 102 having a sensor 67 electrically and electronically connected to transfer the cutting device 300 that detects and cuts the protruding tape T). A front end having a sensor 68 electrically and electronically connected to transfer the cutting device 300 for detecting and cutting the protruding tape T of the panel P sensed by the member 106. It consists of a sensor 103.

The sensing unit body 100 is formed with a long hole 12 penetrating up and down to be fixed to a predetermined position at the edge bending machine, the groove 14 of the uneven shape having a predetermined width in the longitudinal direction on one side And a stepped portion 16 is formed at one side edge thereof, and a plurality of fixing holes 20 are formed in the groove 14, and a fixed bracket 10 having a base shape is formed in the groove 14. The contact with the groove 14 to contact the step 16 formed in one side of the groove 14 and at the same time is fixed by a fixing means 108 such as bolts, screws, pieces, a plurality of fixing holes 20 It is formed in each of the left and right sides, the rectangular fixing block 18 having a stepped portion 16 is formed on the left side, and the lengthwise longitudinally by the fixing means 108 on one side of the fixing block 18 A rectangular bar-shaped fixing bar 22 to be fixed to the groove 14 of the fixing bracket 10 and at the same time fixed The lock 18 is fixedly installed on the lower part and a pair of grooves 14 are formed while maintaining a certain distance on the rear side, and a plurality of fixing holes 20 penetrating the grooves are formed, The sensor support bracket 26 and the sensor support bracket 26 formed in a shape and fixed while maintaining a predetermined distance to all of the plurality of fixing holes 20 and the pin hole 34 is formed in the transverse direction through the stopper 35 and the fixing means 108 are provided in a predetermined position in the lateral direction and consist of a pair of left and right sensor brackets 28 and 29 formed in a plate shape.

The lower end of the fixing bar 22 is provided with a stopper 36 fixed by the fixing means 108, and the cushion member 38 is fixed or attached to one surface of the stopper 36.

The rear end detection sensor 102 is formed in the shape of a base (a), the upper surface is formed with a guide groove 64 of the concave-convex shape, as long as the plurality of fixing holes 20 are formed to penetrate up and down A pair of rear end sensor bodies 62 and 63 and the upper guide groove 64 of the rear end sensor body 62 are installed to slide along the guide groove 64 in the shape of a base. And a sensor fixing block 66 which is formed and is formed through the long hole 12 up and down, and fixed to the rear end sensor body 62 by a fixing means 108 at a predetermined position, and the sensor fixing block 66. It consists of a sensor 68 attached to one side of the.

The sensor 68 is preferably a horseshoe sensor that is commonly called to pass through the light source between the sensors in consideration of the backlash that may occur during the movement of the front and rear end sensing member to be described later, but other sensors (close Naturally, sensors, fiber sensors, light sensors, position sensors, etc. can be used.

The front end sensor 103 has the same structure and components as the rear end sensor 102 and is spaced apart from the front end sensor 103 by a predetermined distance and installed in the groove 14. .

The rear end sensing member 104 is elongated in the longitudinal direction, the sensing piece 50 is formed on the upper surface, the roller 46 is provided on one side of the lower end and the pin hole 34 is formed on the stop The rear end sensing member body 48 having the guide roller 52 installed in the lower portion of the pin hole 34 is formed in a "┗┒" shape, and the long hole 12 having the guide roller 52 coupled to one side thereof. ) Is formed to penetrate right and left, the other side portion is formed with a link member 54 is formed with a fixing hole 20 to which the hinge pin 56 is coupled, and a pin hole 34 is formed at one lower end and a predetermined upper end portion. Fixing hole 20 is formed in the upper end is fixed by the hinge pin 56 fitted to one side of the link member 54 is longitudinally coupled in the longitudinal direction is possible to rotate left and right around the hinge pin (56) It consists of a first guide bar 58 to be installed to.

A bearing (not shown) is fitted in the fixing hole 20 into which the hinge pin 56 of the link member 54 is fitted.

One end of the first guide bar 58 is provided with a sensing tip 60 to detect the front end portion of the panel (P) for transporting.

Then, the first guide bar 58 and the sensing tip 60 and the spring pin for fixing the fixing pin 30 is further installed. By installing the spring pin further it can elastically reinforce the structural torsional strength.

The structure to install using the spring pin is to the extent that anyone in the art can easily perform.

A fixing means 108 is fixed to the left side of the rear end sensing member body 48, one end of the spring 42 is connected to the fixing means 108, and the other end of the fixing means 108 of the sensor support bracket 26. It is connected to and installed to move elastically.

The sensing tip 60 is rounded at the bottom to smoothly contact the panel P being transferred, and the pin hole 34 is formed to be fixed to the lower end of the first guide bar 58 by the fixing pin 30. In the rear part, fixing means 108 such as bolts, pieces, and screws are fixed.

The first guide bar 58 may be configured in one piece that is connected to the sensing tip 60, and the shape change may be easily performed by those skilled in the art.

The front end sensing member 106 has a sensing piece 44 is formed on the top surface, the roller 46 is installed at the lower end, and the pin hole 34 is formed at the stop. And the fixing means 108 is fixed to the lower predetermined position where the pin hole 34 is formed, one end of the spring 42 is connected, and the other end of the spring 42 is fixed to the fixing means 108 of the sensor bracket 29 It is installed to move elastically.

The front and rear end sensing member bodies 40 and 48 are installed between the sensor brackets 28 and 29 by fixing pins 30.

On the other hand, the sensor bracket 28 and the link member 54 is installed so that the second guide bar 98 is connected, when the link member 54 is moved, the second guide bar 98 by a certain angle and distance Guide them to move.

The second guide bar 98 is a flat type formed long in the longitudinal direction, the fixing hole 20 is formed in one upper end, the long hole 13 is formed in the lower end so that the lower portion is opened.

The upper end portion of the second guide bar 98 formed as described above is connected to the fixing hole 20 formed on the side surface of the sensor bracket 28 is fixed to the fixing pin 30 is inserted into the fixing hole 20, The fixing pin 30 is rotatably coupled to the center, and a lower end of the fixing pin 30 installed at the right side of the link member 54 is coupled to the long hole 13.

The fixing pin 30 of the link member 54 coupled to the long hole 13 of the second guide bar 98 moves along the long hole 13 to limit the rotation of the link member 54 to the panel P. When the sensing contact of the first guide bar 58 is installed so that the lower end surface is lower than the lower surface of the roller 46 of the rear end sensing member body 48.

Cutting device 300 of the present invention is formed in the shape of a base (a) and a plurality of long holes 12 are formed to penetrate in the transverse direction to be fixed using a fixing means 108 in a predetermined position and The upper surface has a fixing groove 72 is formed in the horizontal direction, the front portion is formed in the longitudinal direction so that the seating groove 74 is located in the middle portion, a plurality of fixing holes 20 is formed through the cutting device Cutter unit 302 for cutting the tape (T) attached to the bracket (70), the panel (P) which is installed and transported on the upper upper side of the cutting device bracket 70, and the cutter unit 302 A cylinder unit 304 installed at a rear side of the cylinder unit and installed to push and pull the cutter unit 302 back and forth by receiving a signal sensed by a sensor, and between the cutter unit 302 and the cylinder unit 304; At the same time before and after the cutter unit 302 It comprises a buffer unit 306 to mitigate the impact of co-moving cutter unit 302.

The cutter unit 302 is a cutter 86 for cutting the front and rear end tape T attached to the panel P, a motor 84 for rotating the cutter 86, and the motor 84 A motor bracket 80 for fixing, a linear motion block LM (hereinafter referred to as "LM") block 78 fixed to the lower portion of the motor bracket 80, and the LM block 78 The LM guide 76 is coupled to the bottom of the LM block to guide the movement of the LM block.

The motor bracket 80 is formed in an inverse needle shape, the right side of the shaft hole 82 having a horizontal center in the center and a plurality of fixing holes 20 for fixing the motor is formed and the lower portion of the LM A plurality of fixing holes 20 having a longitudinal center are formed to fix the block, and a mounting groove 74 is formed at the bottom thereof so that the LM block is coupled thereto.

The LM block 78 is fixed to the seating groove 74 of the motor bracket, and a plurality of fixing holes 20 are formed to penetrate up and down, and a coupling groove 77 having an uneven shape is formed at the bottom of the LM guide. Combined with

The LM guide 76 is formed with a plurality of fixing holes 20 penetrating up and down, and the rail is formed on both sides of the coupling groove 77 to facilitate the coupling and movement, the fixing means 108 It is coupled to the mounting groove 74 of the cutting device bracket 70 to guide the LM block to move linearly.

The cylinder unit 304 has a quadrangular shape and has a cylinder block 90 having a through hole (not shown) in the center thereof, and is coupled to the cylinder block 90 in a horizontal direction and fixed to the motor bracket 80. The screw portion is composed of a cylinder 88 having a cylinder rod formed in the front end portion and the cylinder block 90 is fixed to the guide groove 72.

The buffer unit 306 is a buffer block 92 is formed with a U-shaped U-shaped groove 96 is formed in the middle of the square and a plurality of fixing holes 20 (not shown), and the cylinder block It is installed in all of the (90) in the transverse direction, it is composed of a shock absorber 94 is fitted and fixed to the buffer block 92, the cushion member is provided at the end, the shock absorber block 92 is a cutting device bracket 70 Is fixed by the fixing means 108.

Subsequently, the structure and operation of the present invention will be described in detail with reference to FIG. 7.

First, the present invention is installed at a predetermined position of the semi-automatic edge bending machine to detect the panel (P) to transfer and cut the tape (T). That is, the sensing device 200 is installed in the initial position of all the devices that are inserted and transported to detect the panel (P) to which the tape (T) is attached, the controller (C) electrically and electronically connected to the sensing device (200) Cutting device 300 connected to each other by the () is properly fixed to a predetermined position that can cut the tape (T).

The panel P moves along the conveyor belt installed on the workbench of the semi-automatic edge bending machine and pushes the sensing tip 60 in the forward direction while contacting the sensing tip 60 of the sensing device 200.

Since the detection tip 60 is fixed to the lower end of the first guide bar 58, the first guide bar 58 is rotated in the counterclockwise direction. At this time, the upper end of the first guide bar 58 is also rotated around the hinge pin 56 in the counterclockwise direction.

When the first guide bar 58 is rotated, the link member 54 connected to the first guide bar 58 by the hinge pin 56 is pulled, and at the same time, tension the spring 42 installed thereon. While the rear end sensing member body 48 is pulled around the fixing pin 30, and gently ride up the panel (P) to which the roller 46 fixed to the lower end is transferred.

At this time, the guide roller 52 of the rear end sensing member body 48 is coupled to the lower end of the long hole 12 of the link member 54, so that the long hole 12 is pulled out as the link member 54 is pulled. Ride to the top and the link member 54 is moved horizontally.

On the other hand, the sensing piece 50 formed in the rear end sensing member body 48 is located in the center of the sensor 67 at the initial position, the lower end of the rear end sensing member body 48 is pulled as the sensing piece ( 50 is turned off while being rotated in the clockwise direction while deviating from the center of the sensor 67.

Subsequently, the panel P continuously advancing pushes the front end portion sensing member body 40 forward while contacting the roller 46 of the front end portion sensing member 106.

As the front end portion detecting member body 40 is pushed down, the lower end portion moves upward in a counterclockwise direction, and the upper end portion rotates in a counterclockwise direction, and the sensing piece 44 moves to the center of the sensor 68 so that the sensor ( 68 detects the sensing piece 44 and is turned on.

As described above, when the sensor 68 detects the transferred panel P, the signal detected by the sensor 68 transmits a signal to the cylinder unit 304 of the cutting device 300 through the controller C. The cylinder 88 provided in the cylinder unit 304 pushes the cutter unit 302 to quickly cut the tape T protruding from the front end of the panel P. At this time, the guide roller 46 of the rear end sensing member body 48 is continuously rolling on the upper surface of the panel (P) to be transferred.

Subsequently, after the tape P is cut and the panel P is transported, when the end portion of the panel P which is continuously transported is out of the body 48 of the rear end sensing member 104, the rear end portion As the sensing member body 48 rotates counterclockwise to return to the initial position, the sensor 67 installed at the upper end detects the sensing piece 50 and is turned on.

When the sensing piece 68 is detected by the sensor 68 as described above, the detected signal transmits a signal to the controller, and the controller C transmits a signal to the cutter device 300 to operate the cylinder unit 304. Let's do it.

The cylinder unit 304 of the cutting device 300 receiving the detection signal pushes the cutter unit 302 installed in the cutting device bracket 70 in all directions. At this time, the cutter 86 provided in the cutter unit 302 cuts the rear end tape T of the panel P which moves while moving forward.

After the cutter 86 cuts the tape T, the cutter unit 302 is returned to its original position. At this time, the cutter unit 302 is impacted by the shock absorbing unit 306 installed in all of the cylinder units 304. Is relaxed and in place.

The cutter 86 moves quickly by the operation of the cylinder unit 304 in proportion to the speed at which the panel P is being conveyed, thereby smoothly cutting the tape T without generating burrs.

The spring 42 allows each sensing member to be in close contact with the sensing surface of the material panel P, while holding the correct cutting point until the sensor reaches the sensor while rotating based on the hinge point. After exiting, the sensing member is elastically returned to the initial position stopped by the stopper 36.

The present invention as described above has the advantage that can be miniaturized by installing in a narrow space between the existing machines without modifying or modifying the semi-automatic edge bending machine itself, fixed installation at a predetermined position of the edge bending machine in one place Using a fixed cutting device to improve the performance of the edge bending machine by cutting at a high speed when the material panel (P) passes.

In addition, the present invention as described above is not limited to the specific embodiments described above, anyone who has ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims various changes Would be possible.

The present invention as described above has the advantage that can be supplied to the consumer by automating a semi-automatic edge bending machine of a low price without purchasing expensive automatic edge bending machine, the equipment is small, easy to install and transport and handling, various models Easily applicable to the edge bending machine of the excellent effect is excellent.

Claims (7)

In the semi-automatic edge bending machine for cutting the tape attached to the conveyed panel, A sensing device fixed to the edge bending machine and configured to detect the front end and the rear end of the panel which are conveyed through the conveyor; And a cutting device having a cutter unit for receiving a signal sensed by the sensing device through a controller and cutting the tape attached to the panel. The method of claim 1, The sensing device includes a sensing unit body fixed to the body of the semi-automatic edge bending machine; A front end part and a rear end detection sensor fixed to the sensing unit body and having a plurality of sensors for detecting front and rear ends of the panel; Tape cutting device of the edge bending machine characterized in that it comprises a front end sensing member for detecting the front end of the panel to be fixed and installed on the lower side of the sensing unit body and the rear end sensing member for sensing the rear end of the conveying panel. The method of claim 2, Edge is characterized in that the front end sensing member is formed with a sensing piece at the upper end and a roller is installed at the lower end, the front end sensing member body is coupled to the sensing unit body by the fixing pin and receives the elastic force by the spring. Tape cutting device of the bending machine. The method of claim 2, The rear end sensing member may include: a guide bar having a lower end fixed to the sensing unit body by a fixing pin such that the rear end sensing member is rotated in contact with the conveyed panel; A link member having one side fixed to the guide bar by a hinge pin and installed to move together; Tape cutting device of the edge bending machine, characterized in that it comprises a rear end sensing member body coupled to the other side of the link member is installed to move by the link member. The method of claim 4, wherein The link member is formed in a "┗┒" shape and the tape cutting device of the edge bending machine, characterized in that the other side is formed with a long hole coupled with the rear end sensing member body. The method of claim 4, wherein The rear end sensing member body is a sensing piece is formed in the upper end, a pin hole is fixed to the sensing unit body by a fixing pin is formed, one side is provided with a guide roller is coupled to the long hole of the link member, the lower end is conveyed Tape cutting device of the edge bending machine characterized in that the roller is provided to move on the panel. The method of claim 1, The cutting device includes a cutting device bracket installed on the semi-automatic edge bending machine; A cutter unit installed at an upper front end of the cutting device bracket so as to be freely moved back and forth; A cylinder unit fixedly installed at an upper rear end of the cutting device bracket and connected to be positioned at one rear of the cutter unit and simultaneously pushing and pulling the cutter unit; And a shock absorber unit disposed between the cutter unit and the cylinder unit and configured to mitigate the impact of the cutter unit fixed and moving at the upper end of the cutting device bracket.