KR102035027B1 - System for attaching film to panel - Google Patents

Abstract

A functional film applying apparatus is disclosed. A functional film attachment system according to an embodiment of the present invention, the panel slider for moving the panel to the film attachment position for attaching the functional film to the panel, and the movement path of the film slider for moving the functional film to the film attachment position A slider movement path unit; And a common camera provided to be fixed at a position on the slider moving path part and commonly photographing an alignment image of the panel and the functional film in order to align the relative position of the panel with respect to the functional film.

Description

Functional film attaching system {System for attaching film to panel}

The present invention relates to a system for attaching a functional film, and more specifically, unlike conventionally, after photographing an alignment image of a panel and a functional film with a common camera, the functional film is applied to the panel based on the captured alignment image information. It is possible to improve the adhesion quality by attaching, thereby relates to a functional film attachment system that can cope with high precision products.

Recently, as the electronic display industry is rapidly developing among the semiconductor industry, flat panel display (FPD) is also continuing to develop. Flat panel displays include liquid crystal displays (LCDs), plasma display panels (PDPs), and organic light emitting diodes (OLEDs).

Among flat panel displays, OLED is divided into passive PMOLED and active AMOLED depending on the driving method.

AMOLED is a self-luminous display, which has a faster response speed than conventional displays, has a natural color, and consumes less power. In addition, AMOLED may be applied to a thin and easily flexible flexible panel instead of a glass panel to implement a technology of a flexible display.

Various kinds of functional films, for example, functional films such as polarizer films, may be used in manufacturing the OLED. A functional film such as a polarizing film is attached to a panel, which is an object, to polarize light.

In the past, a roll-to-stage method using a set table or a drum-to-drum using a drum as a technique for attaching a functional film such as a polarizing film to a panel that is an object. Stage method was common.

In the former roll-to-stage method, a panel that is an object is disposed on a set table, and an attach roller is attached to the panel while the attach roller rotates. This method is an overhang phenomenon of the film. Due to the error, there is a problem in that a high degree of attachment is limited.

For reference, in the roll-to-stage method, due to its characteristics, the functional film is not properly adsorbed on the attach roller, and sagging is likely to occur. As a result, alignment with the panel is inevitably misaligned. Is generated, which is called an overhang phenomenon.

In contrast, the latter drum-to-stage method adsorbs a functional film on the surface of the drum and attaches the functional film to the panel according to the rotational motion of the drum. The pad may cause damage due to contact with the pad, and also due to the limitation of the vacuum area of the drum, there are other problems in changing various panel sizes.

As described above, the roll-to-stage method and the drum-to-stage method have been mainstream as a method of attaching a functional film to a panel. However, each method generates a problem as described above. An alternative method is proposed, and many companies are currently developing it.

This method is to pre-adhesive a functional film such as a polarizing film to a pressure-sensitive adhesive sheet having a weak viscosity, then arrange a functional film on a panel, and then press the pressure-sensitive adhesive sheet to attach the functional film to the panel. After the functional film is attached to the panel, the adhesive sheet is peeled off the functional film.

In order to attach the functional film in this manner, an optical system is required to improve the adhesion accuracy of the functional film to the panel. The optical system is equipped with a camera that captures an alignment image for alignment between the panel and the functional film.

On the other hand, the application of the camera for the panel to shoot the alignment mark (align mark) of the panel for the application of the camera, and the camera for the film to shoot the edge (edge) of the functional film can be considered separately, and thus the camera It may be common to apply.

However, in the case of applying individual cameras in this way, the amount of deviation may occur in the camera synchronization due to the difference after the recognition of each alignment shot image. There is a need for technology development to solve this problem.

Korean Patent Office Application No. 10-2005-0063468

Therefore, the technical problem to be achieved by the present invention, unlike before, by taking an alignment image for the panel and the functional film with a common camera, and then improve the adhesion quality by attaching the functional film to the panel based on the captured alignment image information This provides a functional film attachment system that can cope with high precision products.

According to an aspect of the present invention, a slider movement path forming a movement path of a panel slider for moving the panel to a film attachment position for attaching a functional film to the panel, and a film slider for moving the functional film to the film attachment position. part; And a common camera provided at a position fixed on one side of the slider moving path part, and commonly photographing an alignment image of the panel and the functional film in order to align the relative position of the panel with respect to the functional film. Functional film attachment system may be provided comprising a.

The slider movement path unit, a panel movement path line disposed on one side of the common camera, the panel is moved; A common movement path line arranged to be connected to the film attachment position at the other side of the common camera, wherein the panel and the functional film are moved in common; And a film movement path line connected to the common movement path line and to which the functional film is moved, wherein the common camera is disposed to be fixed at a position where the panel movement path line and the common movement path line meet. Can be.

At least one of the panel movement path line, the common movement path line, and the film movement path line may be a plurality.

And a slider aligning portion connected to the panel slider and aligning the position of the panel slider with the X, Y, and θ axes for aligning the position of the panel relative to the functional film. The slider alignment unit may align the position of the panel slider with the X, Y, and θ axes during movement.

A protective film peeling device may be further provided on the slider moving path part to peel the protective film from the surfaces of the panel and the functional film.

The protective film peeling apparatus may include: a multi-joint robot including an adhesive rotating roller for peeling a film that is adhered to a surface of the protective film in order to peel the protective film from the surface of the panel or the functional film; And a film collecting unit disposed adjacent to the articulated robot and collecting the peeled protective film.

The articulated robot includes: a robot body supported on an installation surface; An articulated arm connected to the robot body and having at least three different axes; And a robot head connected to the distal end of the articulated arm, to which the adhesive rotating roller for peeling the film is mounted.

The articulated robot includes: a film clamp disposed adjacent to the film peeling adhesive roller in the robot head and clamping the protective film together with the film peeling adhesive roller; And it may further comprise a clamp actuator for driving the film clamp approach or spaced apart from the adhesive rotating roller for peeling the film.

An end portion of the film clamp may have a curved portion having the same curvature as that of the outer circumferential surface of the adhesive rotating roller for peeling the film.

The articulated robot may further include a first film sensor provided at one side of the robot head and detecting whether the protective film is clamped to the film clamp.

The articulated robot may further include an adsorption unit provided at one side of the robot head and having a plurality of adsorption pads for adsorbing the panel or the functional film in a vacuum.

The film collecting unit may include a film collecting container in which a protective film peeled from the panel or the functional film is collected; And an adsorption combined blowing unit provided in an inlet region of the film container and adsorbing or blowing a protective film collected in the film container by the action of the articulated robot.

A second film detection sensor provided in the adsorption double blowing unit and detecting whether a protective film from the articulated robot is disposed in the adsorption double blowing unit; And a controller configured to control an operation of the film clamp and the combined blowing unit based on a detection signal of the second film detection sensor.

It is disposed in the post-process of the protective film peeling device on the slider moving path portion, further comprising an adhesion improving device for improving the adhesion to the functional film by spraying plasma ions toward the surface of the panel from which the protective film is peeled off can do.

The apparatus may further include a functional film attachment device provided at the film attachment position and attaching the functional film to the panel.

The functional film attachment device, the apparatus main body; A functional film attaching portion provided on the apparatus main body, wherein the functional film is attached to a predetermined adhesive sheet in an unfolded state, and then attaching the functional film to the panel using the adhesive sheet; And a sheet mounting part provided on the apparatus main body and on which the adhesive sheet is mounted.

The functional film attaching part may include: an attachment roller which is pressed on the adhesive sheet so that the functional film is adhered to the adhesive sheet or the functional film is attached to the panel; A sheet release roller disposed adjacent to the attachment roller and arranged to be detached from the functional film when the attachment of the functional film to the panel is completed, but disposed below the adhesive sheet at a position higher than the adhesion roller; And a backup roller which is external to the attachment roller and supports the rotation of the attachment roller.

The functional film attachment portion, the roller support module for supporting the attachment roller, the backup roller and the sheet release roller as a body; A low friction cylinder and a load cell for sensing the pressing force of the attachment roller is pressed to the pressure-sensitive adhesive sheet, provided on the main body of the device, the module up / down for driving the roller support module up / down (up / down) A drive unit; And a module driving part provided in the apparatus main body and connected to the roller supporting module and the module up / down driving part and driving the roller supporting module to reciprocally drive on the panel slider.

First and second sheet clamps supporting both ends of the pressure sensitive adhesive sheet may be coupled to both ends of the pressure sensitive adhesive sheet, and the sheet mounting part may be provided at one side of the main body of the apparatus, and the first sheet clamp may be supported to be mounted. A first clamp mounting support; And a second clamp mounting support provided on the other side of the main body of the apparatus and supporting the second sheet clamp to be mounted thereon.

A sheet tension holding part may be further provided on at least one of the first clamp mounting support and the second clamp mounting support, and maintains the tension of the pressure-sensitive adhesive sheet. Sliding rail coupled to one side of the; A supporter having a rail block engaged with the sliding rail and coupled to the support for mounting the first clamp; And a tension cylinder which is connected to the support and is operated.

According to the present invention, unlike before, by taking an alignment image of the panel and the functional film with a common camera, by attaching the functional film to the panel based on the captured alignment image information can improve the adhesion quality, Due to this, it can cope with high precision products.

1 is a structural diagram of a functional film attachment system according to an embodiment of the present invention is a view showing a movement path of the panel.
FIG. 2 is a diagram illustrating a moving path of the functional film in FIG. 1.
It is a block diagram of a protective film peeling apparatus.
4 is an enlarged perspective view of the robot head region of the articulated robot.
FIG. 5 is a view of FIG. 4 from another angle.
6 is an enlarged view illustrating main parts of FIG. 5.
7 to 10 are diagrams showing the step of peeling the protective film step by step.
11 is a perspective view of a functional film attachment device applied to the system of FIG. 1.
12 is a side view of FIG. 11.
FIG. 13 is a partial cross-sectional view taken along line AA of FIG. 12.
14 is a perspective view of the adhesive sheet and the first and second sheet clamps.
FIG. 15 is a schematic cross-sectional view taken along line BB of FIG. 14.
16 to 19 are diagrams illustrating a step of attaching a functional film to a panel.
20 is a control block diagram of a functional film attachment system according to an embodiment of the present invention.
21 and 22 are modified embodiments of the functional film attachment system, respectively.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

Prior to the description of the drawings, the functional film to be described below is at least any one selected from a liquid crystal display (LCD), a plasma display panel (PDP) and organic light emitting diodes (OLED) in order to transmit and polarize light under optimal conditions. Various types of optical films (or sheets) that can be applied to a flat panel display, such as EMI films, prism films, protective films, diffuser films, reflective films, DBEF, PVA, TAC, OCA, release films, compensation films, It may be an antireflection film, a polarizer film, or the like, and the panel may be a touch panel, a TSP, a window, or the like. However, hereinafter, it will be described using the terms functional film and panel without distinguishing them.

1 is a view showing a movement path of a panel as a structural diagram of a functional film attachment system according to an embodiment of the present invention, Figure 2 is a view showing the movement path of the functional film in Figure 1, Figure 3 is a protective film 4 is an enlarged perspective view of the robot head region of the articulated robot, FIG. 5 is a view showing FIG. 4 from a different angle, and FIG. 6 is an enlarged view of main parts of FIG. FIG. 10 is a diagram illustrating a process of peeling a protective film, and FIG. 11 is a perspective view of a functional film attaching apparatus applied to the system of FIG. 1, FIG. 12 is a side view of FIG. 11, and FIG. 13 is of FIG. 12. Partial cross-sectional view along line AA, FIG. 14 is a perspective view of the adhesive sheet and the first and second sheet clamps, FIG. 15 is a schematic cross-sectional view along line BB of FIG. 14, and FIGS. 16 to 19 are functional films on the panel. Step by step the process of being attached It is shown in the drawing.

Referring to these drawings, the functional film attachment system according to the present embodiment, unlike before, by taking an alignment image for the panel and the functional film with a common camera, and then the functional film on the panel based on the captured alignment image information By attaching, it is possible to improve the quality of the attachment, and as a result, it is possible to have a layout of a structure as shown in FIGS. Of course, the scope of the present invention is not limited to the shape of the drawings in that the system layout of FIGS. 1 and 2 may be changed to FIGS. 21 and 22 or other layouts within the scope of the present invention.

1 and 2, the functional film attaching system according to the present embodiment includes a slider moving path part 500 forming a moving path of the panel slider 190 and the film slider 195, and a slider moving path part. Devices disposed adjacent to 500 may include devices such as a protective film peeling device 200, an adhesion improving device 300, a common camera 400, and a functional film attaching device 100.

Looking at the configuration in order, first, the slider movement path part 500 is a kind of rail forming the movement path of the panel slider 190 and the film slider 195.

The panel slider 190 serves to move the panel to a film attaching position for attaching the functional film to the panel, that is, the film attaching position where the functional film attaching device 100 is located. The film slider 195 serves to move the functional film to the film attachment position.

The panel slider 190 and the film slider 195 may have the same configuration, and the panel slider 190 and the film slider 195 may be supplied to a desired position while being moved through a corresponding path on the slider moving path part 500 through a separate power unit. .

As illustrated in FIGS. 16 to 19, a slider alignment unit 191 is coupled to the panel slider 190. The slider alignment unit 191 serves to align the position of the panel slider 190 with the X-axis, Y-axis, and θ-axis for aligning a relative position between the panel and the functional film. In other words, it serves to align the relative position of the panel with respect to the functional film relative to the functional film.

Although the slider alignment portion 191 is schematically illustrated in the drawing, the slider alignment portion 191 may be applied by a combination of a cylinder, a motor, and a ball screw, and the alignment between the panel and the functional film may be performed by aligning the position of the panel slider 190. Allow relative positions to be aligned. Of course, the film slider 195 may be provided with an alignment portion of the same shape, but is not used in the present embodiment.

The slider movement path unit 500 forming the movement paths of the panel slider 190 and the film slider 195 is disposed on one side of the common camera 400, and the panel movement path line 510 for moving the panel, and the common camera. The other side of the 400 is disposed in connection with the film attachment position, the common movement path line 520 and the common movement path line 520, the panel and the functional film is moved in common, the film movement path is moved to the functional film May include line 530.

The movement trajectory of the panel on the slider movement path unit 500 will be described. The panel may be finally supplied to the functional film attaching device 100 of ④ while moving in the order of ① to ③ of FIG. 1. At this time, the panel reaches the position ①, the protective film adhered to the surface is peeled off, the position ② is reached and plasma ionized, and then the position ③ is reached to align the alignment mark by the common camera 400. mark) is taken. The captured alignment mark image information is transmitted to the controller 180.

And the functional film is moved in the order of ① to ④ of Figure 2 is finally supplied to the functional film attachment device 100 of ⑤. At this time, the functional film is reached to position ③, the protective film adhered to the surface is peeled off, and reaches the position ④, the edge (edge) is photographed by the common camera 400. The captured edge image information is also transmitted to the controller 180.

Meanwhile, in the present embodiment, the functional film is first moved by the film slider 195 and supplied to the functional film attaching apparatus 100, and then firstly adhered to the adhesive sheet 110 as shown in FIG. 17 to stand by. Subsequently, the panel is moved by the panel slider 190 to be supplied to the functional film attaching apparatus 100, and then a process of attaching the functional film to the panel is performed as shown in FIGS. 18 and 19. Unloading (see FIGS. 1 and 2).

At this time, while the panel is moved to the functional film attachment device 100, the alignment operation for the panel may be in progress. That is, since the functional film is in a state of reaching the functional film attaching apparatus 100 in advance and waiting, the slider alignment unit 191 sets the position of the film slider 195 on the X-axis, Y-axis, and θ based on the edge information of the functional film. After aligning the axes to align the relative positions, the panels reach the functional film attachment device 100. If the relative position of the panel is aligned while the panel is moved to the functional film attaching device 100 as described above, there is no need for a separate time for the alignment, which helps to shorten the tact time. Becomes

Next, the protective film peeling apparatus 200 is provided on the slider movement path 500, and serves to peel the protective film on the surface of the panel and the functional film.

In order to attach the functional film to the panel, the protective film adhered to the surface of the panel and the functional film must be peeled off, and the protective film peeling apparatus 200 plays a role.

The protective film peeling apparatus 200 is separately provided on the panel movement path line 510 and the common movement path line 520 in FIGS. 1 and 2, and the protective film of the panel and the protective film of the functional film are peeled off at the corresponding positions. (Remove).

The structure and function of the protective film peeling apparatus 200 provided in the panel movement path line 510 and the common movement path line 520 are the same.

However, the protective film of the panel on the layout of the system is peeled off while the articulated robot 210 is operated on the upper surface of the panel, while the protective film of the functional film is peeled off while the articulated robot 210 is operated on the lower surface of the functional film. . However, the scope of the present invention is not limited to these matters.

As shown in detail in FIG. 3, the protective film peeling apparatus 200 includes an adhesive rotating roller 241 for peeling the film, which is adhered to the surface of the protective film in order to peel the protective film from the surface of the panel or the functional film. The articulated robot 210 and the articulated robot 210 are disposed adjacent to each other and include a film collecting unit 260 in which the peeled protective film is collected.

The articulated robot 210 is connected to the robot body 220 and the robot body 220 which is supported on the installation surface, and has at least three joint shafts 230 and at the distal end of the articulated arm 230. Connected but includes a robot head 240 is mounted on the adhesive peeling roller 241 for peeling.

In the present embodiment, the six-axis articulated robot 210 is applied. That is, the robot head 240 peels off the protective film from the surface of the panel or the functional film by different six-axis motions of the articulated arm 230, and then discards the protective film to the film collecting unit 260.

When the articulated robot 210 is applied, since it has a compact and efficient structure unlike the conventional one which has used a combination of several single-axis orthogonal robots in the X-axis, Y-axis, and Z-axis, the footprint can be reduced, as well as the speed control. The control of position control, curve motion control, and the like can be simplified to significantly reduce the incidence of peeling errors and film removal. In addition, the application of a separate additional equipment for the secondary peeling or collection of the peeled protective film is not necessary or can be simplified to a minimum. For reference, in the case of the present embodiment, the 6-axis articulated robot 210 is applied, but it is sufficient if more than three axes.

The adhesive peeling roller 241 for peeling the film serves as a roller provided on one side of the robot head 240 to partially peel off the second end of the protective film from the panel (or functional film) as shown in FIGS. 7 to 8. Since the adhesive material is coated on the surface of the adhesive peeling roller 241 for peeling off the film, the adhesive peeling roller 241 for peeling off the film comes in contact with the end of the protective film and then rotates. A part of the roll may be attached to the adhesive rotating roller 241 for peeling off the film slightly.

The robot head 240 is provided with a film clamp 242 and a clamp actuator 244 for interaction with the adhesive peeling roller 241 for peeling the film.

The film clamp 242 is disposed adjacent to the film peeling adhesive roller 241 in the robot head 240, and serves to clamp the protective film together with the film peeling adhesive roller 241. At the end of the film clamp 242 is formed a curved portion 243 having the same curvature as the outer circumferential surface of the adhesive peeling roller 241 for peeling film. Accordingly, the protective film that is peeled off may be clamped without error between the adhesive rotating roller 241 for peeling the film and the curved portion 243 of the film clamp 242.

The clamp actuator 244 serves to drive or close the film clamp 242 to the adhesive rotating roller 241 for peeling the film. The clamp actuator 244 may be a motor or cylinder structure.

Thus, after a portion of the protective film is slightly dried and attached to the adhesive peeling roller 241 for peeling as shown in FIG. 7, the clamp actuator 244 is operated as shown in FIG. 9 to bend the curved portion of the film clamp 242. 243 is pressed against the outer surface of the adhesive rotating roller 241 for peeling film. Then, the partially peeled protective film may be clamped between the adhesive rotating roller 241 for peeling the film and the curved portion 243 of the film clamp 242, and in this state, the six-axis articulated robot 210 as shown in FIG. 10. By this operation, the protective film can be completely peeled off the panel or the functional film.

The robot head 240 is provided with a first film sensor 245 for detecting whether the protective film is clamped to the film clamp 242. After the first film sensor 245 detects that there is a protective film, the articulated robot 210 may be operated as shown in FIG. 10 to completely peel the protective film from the panel (or functional film). Therefore, even though the protective film is not clamped between the adhesive peeling roller 241 and the film clamp 242 for peeling the film, it is possible to prevent the occurrence of an error that the articulated robot 210 operates as shown in FIG. 10.

In addition to such configurations, that is, components for peeling and clamping the protective film, the robot head 240 is further equipped with a suction unit 246. The adsorption unit 246 is provided at one side of the robot head 240 and includes a plurality of adsorption pads 247 for adsorbing the panel or the functional film in a vacuum. The adsorption unit 246 may serve to adsorb and move a panel, a functional film, or other subsidiary materials.

Referring to FIG. 3 again, the film collecting unit 260 may include a film collecting container 261 in which a protective film peeled from a panel or a functional film is collected, and an adsorption combined blowing unit 262 provided in an inlet region of the film collecting container 261. ).

The combined adsorption blowing unit 262 is provided at the inlet region of the film container 261, and the vacuum or blowing the protective film collected in the film container 261 under the action of the articulated robot 210. Play a role.

On the other hand, the protective film peeling apparatus 200 according to the present embodiment is further equipped with a second film sensor 263 and the controller 180 (see FIG. 20). The second film detection sensor 263 is provided in the combined adsorption blowing unit 262 and serves to detect whether the protective film from the articulated robot 210 is disposed in the combined adsorption blowing unit 262. The controller 180 controls the operation of the film clamp 242 and the combined suction unit 262 based on the detection signal of the second film detection sensor 263.

Thus, when the articulated robot 210 inserts the peeled protective film toward the film container 261, the second film sensor 263 detects whether the protective film is present and transmits the information to the controller. If there is a protective film, the protective film may be adsorbed to the adsorption double blowing unit 262 by the adsorption (vacuum) action of the adsorption double blowing unit 262 by the controller 180. Then, the articulated robot 210 releases the clamping of the protective film by the control of the controller 180 and returns to the original position. When the articulated robot 210 returns to its original position, the protective film may be collected while falling to the bottom in the film container 261 due to the blowing action of the combined suction unit 262 by the controller 180.

The controller 180 performing this role may include a central processing unit 181 (CPU), a memory 182 (MEMORY), and a support circuit 183 (SUPPORT CIRCUIT).

The central processing unit 181 may be variously applied industrially to control the operation of the film clamp 242 and the combined adsorption blowing unit 262 based on the detection signal of the second film detection sensor 263 in this embodiment. It may be one of the computer processors.

The memory 182 is connected to the central processing unit 181. The memory 182 may be installed locally or remotely as a computer readable recording medium, and may be readily available, such as, for example, random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. It may be at least one memory.

The support circuit 183 (SUPPORT CIRCUIT) is coupled with the central processing unit 181 to support typical operation of the processor. Such support circuit 183 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In the present embodiment, the controller 180 controls the operation of the film clamp 242 and the adsorption combined blowing unit 262 based on the detection signal of the second film detection sensor 263. 182 may be stored. Typically software routines may be stored in memory 182. Software routines may also be stored or executed by other central processing units (not shown).

Although the process according to the invention has been described as being executed by software routines, at least some of the processes of the invention may be performed by hardware. As such, the processes of the present invention may be implemented in software running on a computer system, in hardware such as integrated circuits, or by a combination of software and hardware.

Next, the adhesion improving device 300 is disposed adjacent to the protective film peeling apparatus 200 in FIGS. 1 and 2, and serves to spray plasma ions toward the peeling surface of the panel on which the protective film is peeled off.

In other words, the adhesion improving device 300 is disposed in the post-process of the protective film peeling apparatus 200 on the slider moving path part 500, and sprays plasma ions toward the surface of the panel where the protective film is peeled off to the functional film. It serves to improve the adhesion to. The functional film can be attached better because plasma ionization is performed on the surface to which the functional film is to be attached.

Next, as shown in FIGS. 1 and 2, the common camera 400 commonly captures an alignment image of the panel and the functional film in order to align the relative position of the panel with respect to the functional film. Do it.

In the present embodiment, the common camera 400 is provided to be fixed on the slider moving path part 500. That is, the common camera 400 is fixedly disposed at the point where the panel movement path line 510 and the common movement path line 520 meet. The panel and the functional film are moved to the common camera 400 by the operation of the panel slider 190 and the film slider 195, and then aligned marks and edges by the fixed-position common camera 400. ) Is taken.

After fixing the common camera 400 as the one (non) camera on the slider movement path unit 500 as in the present embodiment, the panel and the functional film are moved to the fixed common camera 400 to freeze. By allowing in marks and edges to be photographed, it is possible to cope with precision products.

In addition, as described above, when the alignment marks and the edges of the panel and the functional film are photographed by individual cameras and the image information is used, the amount of deviation occurs in the camera synchronization due to the difference after recognition of each alignment image. In consideration of the fact that it was practically impossible to cope with the high-precision product, the application of the common camera 400 may be suitable for the production of the high-precision product.

Finally, the functional film attaching apparatus 100 is provided at the film attaching position at the rear of the system process, and serves to substantially attach the functional film to the panel. The functional film attaching device 100 may include a device body 120 and a functional film attaching part 150 provided on the device body 120 to attach a functional film to the panel using the adhesive sheet 110. have.

In addition, the functional film attachment device 100 according to an embodiment of the present invention is provided separately from the sheet mounting portion 130 and the device body 120 to mount the adhesive sheet 110 to the device body 120, the panel It may include a panel slider 190 to form a place where the functional film is attached.

The device body 120 forms an external structure of the functional film attaching device 100 according to the present embodiment. In the device body 120, structures such as an adhesive sheet 110, a sheet mounting unit 130, and a functional film attaching unit 150 are mounted by location.

The main body driver 121 is provided at one side of the apparatus main body 120. The main body driving unit 121 serves to drive up and down the entire apparatus main body 120. Since the device main body 120 is spaced apart from the upper part of the panel slider 190, the main body driving unit 121 may be provided to adjust the gap thereof.

On the other hand, in the present embodiment, the functional film is attached to the panel using the adhesive sheet 110, rather than the functional film directly attached to the panel. Therefore, prior to the description of the functional film attachment portion 150, the structure and function of the adhesive sheet 110 will be described first.

The adhesive sheet 110 applied to this embodiment is a medium used to attach the functional film to the panel. That is, in this embodiment, instead of attaching the functional film to the panel as it is, the functional film is first adhered to the adhesive sheet 110 as shown in FIGS. 16 to 19, and then the functional film and the panel are aligned with each other, and then the adhesive sheet ( By pressing 110, the functional film can be attached to the panel.

When the functional film is attached to the panel through the adhesive sheet 110 as described above, a roll-to-stage method using a conventional set table or a drum-to-stage using a drum is applied. Unlike the to stage method, it has the advantage of excellent attachment efficiency and quality.

However, when the adhesive sheet 110 is applied, an engineering plastic-based adhesive sheet, an air pocket sheet, a porous sheet, etc. are simply applied due to high elongation. It is impossible to cope with the attachment degree, short life, high running cost and frequent replacement cycles cause down time.

In this embodiment, this problem is solved by presenting the adhesive sheet 110 having the following innovative structure. As shown in FIGS. 14 and 15, the adhesive sheet 110 applied to the functional film attaching apparatus 100 according to the present exemplary embodiment may include an adhesive layer 111, a reinforcing layer 114, and a cushion disposed therebetween. The layer 112 and the adhesive layer 113 may be included. As illustrated in FIG. 15, the adhesive layer 111, the cushion layer 112, the adhesive layer 113, and the reinforcement layer 114 may be sequentially arranged.

The adhesive layer 111 is a portion that is adhered to the functional film to be attached to the panel through the adhesive force based on van der Waals force.

For reference, van der Waals forces refer to forces acting between electrically neutral molecules that do not have quasi electrons. In particular, it refers to a manpower that operates relatively remotely. Van der Waals forces arise as a result of dispersing forces, and the van der Waals forces explain the forces acting between rare gas atoms and the factors in which molecular crystals of hydrocarbons such as benzene are formed. In addition, van der Waals force means the intrinsic force necessary to explain the phenomenon such as physical adsorption, such as agglomeration, adhesion of the liquid and the present embodiment.

In summary, van der Waals forces are extremely weak electrostatic attraction that acts only at very short distances between electrically neutral molecules, collectively referred to as electrical forces acting between covalent molecules.

In particular, physical adhesion is possible without a separate power through the power of the ions, the functional film can be easily adhered, and also peeled because the adhesive layer 111 is produced based on such van der Waals forces have. That is, since a weak viscosity is formed in the adhesive layer 111, the adhesive layer 111 may be adhered to the functional film. After the functional film is attached to the panel, the functional film is easily peeled off, that is, detached from the adhesive layer 111. Can be.

On the other hand, in the application of such an adhesive layer 111, if only the adhesive layer 111 is applied to the sheet can perform the desired process well in the early stage, but the adhesive layer 111 will increase due to high adhesion pressure during repeated use However, when the adhesive layer 111 is increased, it is inevitably impossible to cope with a high degree of adhesion of the product.

Thus, the reinforcing layer 114 is provided on the adhesive sheet 110 applied to the functional film attaching apparatus 100 according to the present embodiment so that such a phenomenon does not occur. The reinforcing layer 114 is connected to the adhesive layer 111 but serves to reinforce the adhesive layer 111 so that the elongation of the adhesive layer 111 is not increased. In the present embodiment, the reinforcing layer 114 is applied to a stainless steel thin plate, and reinforces while supporting the adhesive layer 111 with a larger area than the adhesive layer 111 as shown in FIG. 14. Since the reinforcement layer 114 is applied to the stainless steel sheet, it is advantageous to match the elongation.

As such, when the reinforcement layer 114 is further applied to the adhesive sheet 110, the elongation can be lowered as close to zero as possible to a high degree of adhesion, and the durability can be improved. As a result, the service life can be extended, which not only reduces the running cost, but also reduces the down time due to the long replacement cycle.

The cushion layer 112 is a layer interposed between the adhesive layer 111 and the adhesive layer 113. The cushion layer 112 serves to provide a buffer when the functional film is attached to the panel. Therefore, it is possible to prevent the panel from being damaged while the functional film is attached to the panel while pressing the adhesive sheet 110 with the attachment roller 151 which will be described later.

The adhesive layer 113 serves to bond the cushion layer 112 and the reinforcement layer 114. In fact, since the adhesive layer 111 has a weak viscosity and can stick with the cushion layer 112, the adhesive layer 113 only needs to be interposed between the cushion layer 112 and the reinforcing layer 114. Of course, if necessary, the adhesive layer 113 may also be reapplied between the adhesive layer 111 and the cushion layer 112, which should also be included in the scope of the present invention.

As described above, the adhesive sheet 110 applied to the present embodiment may include an adhesive layer 111, a reinforcing layer 114, and a cushion layer 112 and an adhesive layer 113 disposed therebetween. The thickness of the 113 and the cushion layer 112 and the thickness of the reinforcing layer 114 may be the same, and the thickness of the adhesive layer 111 may be greater than twice the thickness of the reinforcing layer 114. For example, when the thickness of the adhesive layer 111 is 300 μm, the thickness of the reinforcement layer 114 may be 50 μm, and the sum of the thickness of the cushion layer 112 and the thickness of the reinforcement layer 114 may be 50 μm. . This is advantageous because the portion to which the functional film is substantially adhered is the adhesive layer 111, and is thick, and the reinforcement layer 114 must be thin to be flexible. However, the scope of the present invention is not limited to the numerical values thereof.

As described above, the adhesive sheet 110 based on the van der Waals force described above is preferably applied to the functional film attaching device 100 according to the present embodiment, but is not necessarily the case. That is, it does not matter even if it uses the adhesive sheet (not shown) to which the general usual adhesive substance was apply | coated. Therefore, the scope of the present invention is not limited to these matters.

Meanwhile, first and second sheet clamps 116 and 117 supporting both ends of the adhesive sheet 110 may be formed at both ends of the adhesive sheet 110 so that the adhesive sheet 110 may be mounted at a corresponding position of the apparatus main body 120. Combined. The adhesive sheet 110 may be mounted on the sheet mounting unit 130 via the first and second sheet clamps 116 and 117.

The sheet mounting unit 130 is provided on one side of the apparatus main body 120 to form a place where the adhesive sheet 110 is mounted. As described above, the first and second sheet clamps 116 and 117 are coupled to both ends of the adhesive sheet 110, and the first and second sheet clamps 116 and 117 are mounted on the sheet mounting unit 130. 110 may be installed.

The seat mounting unit 130 is provided on one side of the apparatus main body 120, and is provided on the first clamp mounting support 131 for supporting the first seat clamp 116 to be mounted, and on the other side of the apparatus main body 120. In addition, the second seat clamp 117 may include a support for mounting the second clamp 132 to be mounted.

As such, the first sheet clamp 116 supporting one end of the adhesive sheet 110 is mounted on the first clamp mounting support 131, and the second sheet clamp 117 supporting the other end of the adhesive sheet 110. The adhesive sheet 110 may be installed in a form in which the second clamp mounting support 132 is mounted on the second clamp mounting support 132, and the adhesive line is stretched between the first clamp mounting support 131 and the second clamp mounting support 132. A plurality of sheet idle rollers 134 is provided to guide the sheet 110.

The plurality of sheet idle rollers 134 are disposed between the first clamp mounting support 131 and the second clamp mounting support 132, and serve to guide the adhesive sheet 110. In the present embodiment, the plurality of sheet idle rollers 134 are rotatably disposed on the side of the first clamp mounting support 131 and the second clamp mounting support 132, respectively, and all are applied as a non-power free rotating roller. do.

Although the adhesive sheet 110 is guided by the action of the sheet idle rollers 134 as described above, since the adhesive sheet 110 is pressed toward the panel when the functional film is attached, the operation of the adhesive sheet 110 is repeated. There is a fear that the initial tension is distorted. Thus, the seat tension maintaining unit 140 is provided.

The sheet tension maintaining unit 140 is provided on at least one of the first clamp mounting support 131 and the second clamp mounting support 132, and serves to maintain the tension of the adhesive sheet 110. In the case of the present embodiment, the seat tension maintaining unit 140 is provided on the side of the first clamp mounting support 131. However, this is only one embodiment. That is, the seat tension maintaining unit 140 may be provided on the second clamp mounting support 132 side, or may be provided on both the first clamp mounting support 131 and the second clamp mounting support 132. There will be.

The seat tension maintaining unit 140 includes a sliding rail 141 coupled to one side of the apparatus main body 120 and a rail block 143 that is rail-engaged with the sliding rail 141, and includes a first clamp mounting support ( It may include a support support 142 coupled to the 131, the tension cylinder 144 is connected to the support support 142 is operated. Thus, since the tension cylinder 144 presses or pulls the support 142 at a predetermined pressing force, the tension of the initially set value may be maintained as it is.

On the other hand, the functional film attachment device 100 according to the present embodiment is equipped with a functional film attachment portion 150 as described above. The functional film attaching part 150 is provided in the apparatus main body 120 to be adjacent to the sheet mounting part 130, and after the functional film is adhered to the adhesive sheet 110 in an unfolded state, the adhesive sheet 110 is used. It serves to attach the functional film to the panel.

In other words, the functional film attaching part 150 first adheres the functional film to the adhesive sheet 110 as shown in FIGS. 16 to 19, and then aligns the relative position of the panel with respect to the functional film based on the functional film. The pressure-sensitive adhesive sheet 110 is pressed to allow the functional film to be attached to the panel. After the functional film is attached to the panel, the adhesive sheet 110 is peeled off, that is, detached from the functional film.

The functional film attachment part 150 which plays such a role is the attachment roller 151, the backup roller 152, and the sheet release roller 153 which are connected to one body by the roller support module 155, and the roller support module ( The module may include a module up / down driving unit 160 for up / down driving 155 and a module driving unit 170 for driving the roller support module 155.

The attachment roller 151 is pressed on the adhesive sheet 110 such that the functional film is adhered to the adhesive layer 111 of the adhesive sheet 110 as shown in FIGS. 16 to 17, or the functional film is attached to the panel as illustrated in FIGS. 18 to 19. It is a roller to be moved.

In other words, the attachment roller 151 presses the adhesive sheet 110 from one side to the other side while being rotated in the reinforcing layer 114 on the adhesive sheet 110. Therefore, the process of adhering the functional film to the adhesive layer 111 of the adhesive sheet 110 as shown in FIG. 16 may proceed, and the process of attaching the functional film to the panel as shown in FIG. 18 may proceed.

The backup roller 152 is a roller that is external to the attachment roller 151 and supports the rotation of the attachment roller 151. The backup roller 152 may have a diameter larger than that of the attachment roller 151. Due to the action of the backup roller 152, the attachment roller 151 may be attached to the adhesive layer of the adhesive sheet 110 as shown in FIGS. 111 to allow the functional film to adhere or the process of attaching the functional film to the panel as shown in FIG.

The sheet release roller 153 is a roller having a function of allowing the adhesive sheet 110 to be separated from the functional film when the attachment of the functional film to the panel is completed as shown in FIG. 19. The sheet release roller 153 is disposed below the adhesive sheet 110 at a position higher than the attachment roller 151. Since the sheet release roller 153 is disposed below the adhesive sheet 110, when the sheet release roller 153 is up, the adhesive sheet 110 may be peeled off, that is, separated from the functional film.

The attachment roller 151, the backup roller 152, and the sheet release roller 153 described above are supported by the roller support module 155 as a body. Accordingly, when the roller support module 155 is up, the attachment roller 151, the backup roller 152, and the sheet release roller 153 may also be up together, and the roller support module 155 may be down ( When down, the attachment roller 151, the backup roller 152, and the sheet release roller 153 may also be down together.

The module up / down driving unit 160 is provided in the apparatus main body 120, and serves to drive the roller support module 155 up / down. In the present embodiment, the module up / down driving unit 160 includes a low friction cylinder 161. In addition, the low friction cylinder 161 is provided with a load cell 162 for detecting the pressing force to which the attachment roller 151 is pressed on the adhesive sheet 110. By controlling the force of the low friction cylinder 161 by the information of the load cell 162, the controller 180 can press the adhesive sheet 110 at a constant pressure, which causes the functional film to adhere to the adhesive sheet 110. The adhesive film may be attached or the functional film may be attached to the panel.

The module driving unit 170 is provided in the apparatus main body 120, and is connected to the roller support module 155 and the module up / down driving unit 160. The roller support module 155 is connected to the panel slider (FIGS. 17 and 19). 190 to serve to reciprocate drive.

As shown in FIG. 13, the module driving unit 170 is screwed to the motor 171 generating the driving force, the ball screw 172 rotatable in the forward and reverse directions by the motor 171, and the ball screw 172. It may include a screw nut 173 is coupled and connected to the module up / down driver 160 on one side. Accordingly, when the motor 171 is driven to rotate the ball screw 172, the roller support module 155 including the module up / down driving unit 160 due to the action of the screw nut 173 moving on the ball screw 172. The whole may be reciprocally driven on the panel slider 190. The controller 180 (see FIG. 15) described above may use the module up / down driving unit 160 and the module driving unit based on process conditions for attaching the functional film to the adhesive sheet 110 or for attaching the functional film to the panel. The operation of 170 may be controlled.

Hereinafter, the operation of the functional film attachment system according to the present embodiment will be described.

The functional film loaded on the film slider 195 is finally supplied to the functional film attaching device 100 of ⑤ while moving in the order of ① to ④ of FIG. 2. At this time, the functional film is reached at position ③ and the protective film adhered to the surface is peeled off by the protective film peeling apparatus 200, and reaches the position ④ so that the edge is photographed by the common camera 400. . The captured image information is transmitted to the controller 180.

The edge filmed functional film is supplied to the functional film attachment device 100 of ⑤, and then adhered to the adhesive sheet 110. Take a look at this. That is, when the functional film is loaded on the panel slider 190 as shown in FIG. 16, the roller support module 155 is down by the module up / down driving unit 160. Subsequently, the roller support module 155 is moved from one side to the other side by the action of the module driving unit 170 as shown in FIG. 17, so that the functional film is adhered to the adhesive layer 111 of the adhesive sheet 110 through adhesive force based on van der Waals forces. Sticks. After the functional film is adhered to the adhesive sheet 110, the roller support module 155 is up by the module up / down driving unit 160.

In this way, while the functional film is adhered to the adhesive sheet 110, the panel is moved to the functional film attaching device 100 of ④ finally while moving in the order of ① to ③ of FIG. 1.

The panel is reached at position ① and the protective film adhered to the surface is peeled off in the process of FIGS. 7 to 10 by the protective film peeling apparatus 200, and is reached at position ② to the plasma by the adhesion improving apparatus 300. After the ion treatment, the position 3 is reached, and an alignment mark is photographed by the common camera 400. The captured image information is also transmitted to the controller 180.

And it is supplied to the functional film attachment device 100 of ④. At this time, since the functional film is already adhered to the pressure-sensitive adhesive sheet 110 of the functional film attaching device 100, an alignment operation for the panel is performed to align the relative position of the panel based on the functional film.

Alignment work for the panel is performed while the panel is moved to the functional film attaching device 100. In other words, since the functional film is in the standby state in the functional film attaching apparatus 100, the slider alignment unit 191 sets the position of the film slider 195 to the X-axis, Y-axis, θ based on the edge information of the functional film. After aligning the axes to align the relative positions, the panels reach the functional film attachment device 100. If the relative positions of the panels are aligned while the panel is being moved in this way, it is very helpful to shorten the tact time because there is no need for a separate time for the alignment.

When the aligned panel reaches the attachment position, the roller support module 155 is down again by the module up / down driving unit 160. Subsequently, as shown in FIG. 18, the roller support module 155 is further down by the module up / down driving unit 160 so that the functional film contacts the panel by the action of the attachment roller 151.

Then, the roller support module 155 is moved from one side to the other by the action of the module driving unit 170 as shown in Figure 19 by the force of the attachment roller 151 to press the adhesive sheet 110 to the functional film on the panel To be attached. After the functional film is attached to the panel, the roller support module 155 is up again by the module up / down driving unit 160, and the adhesive sheet is separated from the functional film due to its action.

According to the present embodiment having the structure and operation as described above, unlike the conventional method, after taking an alignment image of the panel and the functional film with a common camera, attaching the functional film to the panel based on the captured alignment image information. By doing so, the adhesion quality can be improved, which makes it possible to cope with high-precision products.

21 and 22 are modified embodiments of the functional film attachment system, respectively.

In the case of FIGS. 1 and 2 described above, the structure is disposed on only one side of the protective film peeling device 200, the adhesion improving device 300, and the like on the slider moving path part 500 of the thermal insulation. In this case, a dual process line is formed, and in FIG. 22, a dual process line is provided in pairs.

In the case of FIGS. 21 and 22, the slider movement path portions 500a and 500b are formed in several lines while the size of the common cameras 400a and 400b is increased, and the protective film peeling apparatus 200 and the adhesion improving apparatus 300 are provided. The structure, function, and role are the same as in the above-described embodiment, except that the device may be symmetrically arranged on both sides. However, when having the layout as shown in FIGS. 21 and 22, the productivity may be improved.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

100: functional film attachment device 110: adhesive sheet
120: device body 130: seat mounting portion
140: sheet tension holding unit 150: functional film attachment portion
160: module up / down drive unit 170: module running unit
180: controller 190: panel slider
191: slider alignment unit 195: film slider
200: protective film peeling device 210: articulated robot
220: robot body 230: articulated arm
240: robot head 241: adhesive rotating roller for peeling film
242: film clamp 243: curved portion
244: clamp actuator 245: first film detection sensor
246: adsorption unit 247: adsorption pad
260: film collecting unit 261: film collecting container
262: blowing unit for adsorption combined 263: second film detection sensor
300: adhesion improving device 400: common camera
500: slider movement path portion 510: panel movement path line
520: common movement route line 530: film movement route line

Claims (20)

A slider movement path portion for forming a movement path of a panel slider for moving the panel to a film attachment position for attaching the functional film to the panel and a film slider for moving the functional film to the film attachment position; And
The common camera is provided to be fixed to one side on the slider moving path portion, and to take a common image of the alignment of the panel and the functional film in order to align the relative position of the panel with respect to the functional film. Include,
The slider movement path unit,
A panel movement path line disposed on one side of the common camera and the panel moved;
A common movement path line arranged to be connected to the film attachment position at the other side of the common camera, wherein the panel and the functional film are moved in common; And
Is connected to the common movement path line, includes a film movement path line to which the functional film is moved,
The common camera is a functional film attachment system, characterized in that arranged to be fixed in position at the point where the panel movement path line and the common movement path line meets. delete The method of claim 1,
And at least one line of the panel movement path line, the common movement path line, and the film movement path line. The method of claim 1,
And a slider alignment portion connected to the panel slider, which aligns the position of the panel slider with the X, Y, and θ axes for aligning the relative position of the panel with respect to the functional film.
And the slider alignment portion aligns the position of the panel slider with the X, Y, and θ axes during movement. The method of claim 1,
And a protective film peeling device provided on the slider moving path part to peel the protective film from the surface of the panel and the functional film. The method of claim 5,
The protective film peeling device,
An articulated robot having an adhesive rotating roller for peeling the film, the adhesive film being adhered to the surface of the protective film in order to peel the protective film from the surface of the panel or the functional film; And
And a film collection unit disposed adjacent to the articulated robot, wherein the peeled protective film is collected. The method of claim 6,
The articulated robot,
A robot body supported on the installation surface;
An articulated arm connected to the robot body and having at least three different axes; And
And a robot head connected to the distal end of the articulated arm, on which the adhesive rotating roller for peeling the film is mounted. The method of claim 7, wherein
The articulated robot,
A film clamp disposed adjacent to the film peeling adhesive roller in the robot head and clamping the protective film together with the film peeling adhesive roller; And
And a clamp actuator for driving the film clamp to the adhesive rotating roller for peeling or approaching the film. The method of claim 8,
The end of the film clamp is a functional film attachment system, characterized in that the curved portion having the same curvature as the outer circumferential surface of the adhesive peeling roller for peeling film is formed. The method of claim 8,
The articulated robot,
And a first film detecting sensor provided at one side of the robot head and detecting whether the protective film is clamped to the film clamp. The method of claim 7, wherein
The articulated robot,
And a suction unit provided on one side of the robot head and having a plurality of suction pads for suctioning the panel or the functional film with a vacuum. The method of claim 8,
The film collecting unit,
A film container in which the protective film peeled off the panel or the functional film is collected; And
Attached to the inlet region of the film container, the functional film attached, characterized in that it comprises an adsorption combined blowing unit for the vacuum (vacuum) or blowing (blowing) the protective film collected in the film container by the action of the articulated robot system. The method of claim 12,
A second film detection sensor provided in the adsorption double blowing unit and detecting whether a protective film from the articulated robot is disposed in the adsorption double blowing unit; And
And a controller for controlling the operation of the film clamp and the combined blowing unit based on the detection signal of the second film sensor. The method of claim 5,
It is disposed in the post-process of the protective film peeling device on the slider moving path portion, further comprising an adhesion improving device for improving the adhesion to the functional film by spraying plasma ions toward the surface of the panel from which the protective film is peeled off Functional film attachment system, characterized in that. The method of claim 1,
And a functional film attaching device provided at the film attaching position and attaching the functional film to the panel. The method of claim 15,
The functional film attachment device,
Device body;
A functional film attaching portion provided on the apparatus main body, wherein the functional film is attached to the adhesive sheet in an unfolded state, and then attaching the functional film to the panel using the adhesive sheet; And
And a sheet mounting portion provided on the apparatus main body and on which the adhesive sheet is mounted. The method of claim 16,
The functional film attachment portion,
An attachment roller which is pressed on the pressure sensitive adhesive sheet so that the functional film is adhered to the pressure sensitive adhesive sheet or the functional film is attached to the panel;
A sheet release roller disposed adjacent to the attachment roller and arranged to be detached from the functional film when the attachment of the functional film to the panel is completed, but disposed below the adhesive sheet at a position higher than the adhesion roller; And
And a backup roller which is external to the attachment roller and supports the rotation of the attachment roller. The method of claim 17,
The functional film attachment portion,
A roller support module which supports the attachment roller, the backup roller and the sheet release roller as one body;
A low friction cylinder and a load cell for sensing the pressing force of the attachment roller is pressed to the pressure-sensitive adhesive sheet, provided on the main body of the device, the module up / down for driving the roller support module up / down (up / down) A drive unit; And
And a module driving unit provided in the apparatus main body and connected to the roller supporting module and the module up / down driving unit and driving the roller supporting module to reciprocate on the panel slider. The method of claim 16,
First and second sheet clamps supporting both ends of the adhesive sheet are coupled to both ends of the adhesive sheet,
The sheet mounting portion,
A first clamp mounting support provided on one side of the apparatus main body and supporting the first seat clamp to be mounted; And
And a second clamp mounting support provided on the other side of the apparatus main body and supporting the second sheet clamp to be mounted thereon. The method of claim 19,
It is provided on at least one of the first clamp mounting support and the second clamp mounting support, and further comprising a sheet tension holding unit for maintaining the tension of the adhesive sheet,
The sheet tension maintaining unit,
A sliding rail coupled to one side of the apparatus main body;
A supporter having a rail block engaged with the sliding rail and coupled to the support for mounting the first clamp; And
And a tension cylinder operatively connected to the support support.

Images