KR101594477B1 - Apparatus and method of bonding a film - Google Patents

Abstract

More particularly, the present invention relates to a film adhering apparatus, and more particularly to a film adhering apparatus in which after a film is attached to an adhesive sheet constituting an adhering section, the adhering section is rotated while the adhesive sheet is in close contact with a case having a curved surface, Which is capable of attaching the film to the film. To this end, an apparatus for attaching a film according to the present invention comprises: a main body film transfer unit for transferring a main film; Wherein the protective film is peeled off from the raw film, and the remaining film is attached to a case having a curved surface, and the protective film is peeled off from the protective film, An attachment part configured to rotate while forming a trajectory of one circle; A peeling unit for peeling the protective film from the raw film attached to the adhesive sheet; And a case transferring part for moving the case to a position corresponding to the attaching part.

Description

[0001] APPARATUS AND METHOD OF BONDING A FILM [0002]

The present invention relates to a film attaching apparatus for attaching a film to a case, and more particularly to an apparatus and a method for attaching a film to a case having a curved surface.

Flat panel displays (FPDs) are used in various types of electronic products including mobile phones, tablet PCs, and notebook computers. Examples of flat panel display devices include a liquid crystal display (LCD), a plasma display panel (PDP), and an organic light emitting display (OLED) (EPD: ELECTROPHORETIC DISPLAY) are also widely used.

Among the flat panel display devices (hereinafter, simply referred to as 'display devices'), organic light emitting display devices use self-luminous elements that emit light by itself, , High brightness and a large viewing angle.

Particularly, the organic luminescent panel constituting the organic light emitting display can be manufactured using a thin flexible substrate such as plastic, and the flexible organic luminescent panel manufactured using the flexible substrate can be folded like a paper sheet, It is possible to display a desired image. Therefore, the organic light emitting display device is attracting attention as a next generation display device.

1 is an exemplary view showing a state where a film is attached to a curved case.

2. Description of the Related Art [0002] Generally, flat panel type organic luminescent panels are used in currently used smart phones, so that a cover glass in the form of a flat plate covers the organic luminescent panel.

In recent years, flexible organic light emitting panels have been developed, but flat organic light emitting panels are generally used, and thus the cover glasses are also formed in a flat plate shape.

However, as the flexible organic light emitting panel as described above is actively developed, recently, research on a terminal having the organic light emitting panel attached to a cover glass having a curved surface is underway.

For example, FIG. 1 shows a state in which a flexible organic light emitting panel 10 is attached to an inner surface of a cover glass 20 having a curved surface, which can be applied to a terminal such as a smart phone.

In order to attach the flexible organic luminescent panel 10 to the inner surface of the cover glass 20 having a curved surface, a film adhering device having rollers running along the curved surface should be developed, The flexible organic light emitting panel 10 must be continuously attached to the cover glass 20.

However, a film attaching device capable of automatically attaching the flexible organic light emitting panel 10 continuously to a plurality of cover glasses 20 has not been developed yet.

Accordingly, the process of attaching the flexible organic light emitting panel 10 to the cover glass 20 having a curved surface as shown in FIG. 1 is manually performed by the manufacturer. For example, a manufacturer who wishes to attach the flexible organic luminescent panel 10 to a cover glass 20 having a curved surface as shown in Fig. 1 can be manufactured by attaching the flexible organic luminescent panel 10 to the curved surface- The flexible organic light emitting panel 10 must be attached to the other side of the cover glass 20 by using a hand or a roller after attaching the flexible organic light emitting panel 10 to one side of the glass 20.

Therefore, the manufacturing process of the organic light emitting display device in which the flexible organic light emitting panel 10 is attached to the cover glass 20 having a curved surface is complicated and requires a long time, .

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a method for attaching a film to an adhesive sheet constituting an attaching portion, Which is capable of attaching the film to the film.

According to an aspect of the present invention, there is provided an apparatus for attaching a film, including: a raw film transferring unit for transferring a raw film; Wherein the protective film is peeled off from the raw film, and the remaining film is attached to a case having a curved surface, wherein the protective film is adhered to a case having a curved surface, An attachment part configured to rotate while forming a trajectory of one circle; A peeling unit for peeling the protective film from the raw film attached to the adhesive sheet; And a case transferring part for moving the case to a position corresponding to the attaching part.

According to another aspect of the present invention, there is provided a film adhering method for transferring a raw film fed along a raw film transferring unit to an outer peripheral surface of a first roller, a second roller, To an adhesive sheet surrounding the adhesive sheet; Peeling off the protective film from the raw film which is adsorbed on the adhesive sheet and moves along the outer peripheral surface of the rollers together with the adhesive sheet; Positioning an end of one side of the inner side of the case having a curved surface at the end of the first side of the film adsorbed on the surface of the adhesive sheet after peeling off the protective film from the ledger film; And attaching the first side of the film to the end of the one side of the case so that the first side of the film is attached to the end of the side of the case, .

According to the present invention, a film such as a flexible panel can be accurately attached to the inner surface of the curved case. In addition, since the process of attaching the curved case and the film can be performed automatically, the manufacturing process of various devices using the curved case and the film is simplified, and the manufacturing cost of the device can be reduced.

1 is an exemplary view showing a state in which a film is attached to a curved case;
2 is a view showing an example of a smartphone to which a film-attached case is applied by the film-attaching apparatus according to the present invention.
3 is a block diagram of an embodiment of a film adhering apparatus according to the present invention.
4 is a perspective view of an embodiment of an attachment portion applied to a film adhering apparatus according to the present invention;
FIGS. 5A to 5F are various illustrations for explaining a method of attaching a film according to the present invention, according to the present invention.

Hereinafter, a display device and a method of manufacturing the same according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view showing a smartphone to which a film-attached case is applied by the film-attaching apparatus according to the present invention. For convenience of explanation, a case 120 having a curved surface and a film 110 are separated .

The apparatus for attaching a film according to the present invention is for attaching a flexible organic light emitting panel 110 applied to a smartphone as shown in Fig. 2 to the inner surface of a case 120 having a curved surface. The case 120 having the curved surface may be used as a cover glass of the smartphone.

In this case, various images can be output by the flexible organic light emitting panel 110 on the side of the smartphone as well as on the front side.

However, in addition to the application of the flexible organic light emitting panel 110 applied to a smartphone as shown in FIG. 2 to the case 120 having a curved surface as shown in FIG. 2, To the case 120 having the opening 120a.

For example, the film-attaching apparatus according to the present invention is also used for attaching various kinds of films applied to a TV having a curved surface, a monitor having a curved surface, a clock having a curved surface, etc. to a case applied to the apparatuses . In particular, the film may be a flexible organic light emitting panel for outputting an image, but may be other types of flexible panels, a touch panel, or a general film not related to image output.

Accordingly, in the following description, the flexible organic light emitting panel and various kinds of films of a similar type are collectively referred to as a film 110, and the cover glass and the various kinds of cases similar to the above are simply referred to as a case 120, .

Fig. 3 is a configuration diagram of an embodiment of a film adhering apparatus according to the present invention, and Fig. 4 is a perspective view of an embodiment of an adhering section applied to a film adhering apparatus according to the present invention.

3 and 4, the apparatus for attaching a film according to the present invention includes a main film transferring unit 290 for transferring a main film film 110a, a transferring unit for transferring the main film film transferred by the main film transferring unit 290, (240) for attaching the remaining film to the case (120) having a curved surface by peeling the protective film from the raw film (110a) by using the adhesive sheet (230) A peeling unit 280 for peeling off the protective film from the raw material film 110a attached to the case 230 and a case transfer unit 270 for transferring the case 120 to a position corresponding to the attachment unit 240 ).

4, the attachment unit 240 includes a rotator 210 rotated by a first motor 291, three rollers (not shown) rotatably mounted on the rotator 210, 220a, 220b, and 220c, and the adhesive sheet 230 surrounding the outer surfaces of the three rollers.

First, the rotator 210 is rotated by the first motor 291.

The rotator 210 includes a first rotating plate 210a rotated by the first motor 291 and having one side of the three rollers rotatably mounted and a second rotating plate 210b rotatably mounted on the other side of the three rollers And a second rotating plate 210b.

The first motor 291 is driven by a control unit (not shown), and the first rotating plate 210a can be rotated by a first rotating shaft (not shown) connected to the first motor.

When the first rotating plate 210a is rotated, the three rollers 220a, 220b, and 220c having one side mounted on the first rotating plate 210a are rotated along the rotating plate, The second rotary plate 210b on which the other side of the three rollers is mounted is rotated.

Second, at least one of the three rollers 220a, 220b, and 220c is rotated by the second motor 292 attached to the rotator 210.

Particularly, when the rotator 210 is constituted by the first rotating plate 210a and the second rotating plate 210b, one side of the three rollers 220a, 220b, and 220c is connected to the first rotating plate 210a And the other end is rotatably mounted on the second rotary plate 210b.

In this case, the second motor 292 for rotating at least one of the three rollers may be mounted on the second rotary plate 210b as shown in FIG. However, the second motor 292 may be mounted on the first rotating plate 210a together with the first motor 291. [

The second motor 292 may also be driven by the control unit (not shown).

The three rollers 220a, 220b and 220c are arranged in the order of the first roller 220a, the second roller 220b and the third roller 220c in the clockwise direction, It is mounted in a finished form.

For example, one side of the three rollers is rotatably mounted on the first rotary plate 210a, and is mounted in a triangular shape as shown in FIGS. 3 and 4 in particular. In particular, the three rollers may be mounted on the first rotary plate 210a in an equilateral triangular shape. In this case, the three rollers may be mounted on the first rotary plate 210a in the order of the first roller 220a, the second roller 220b and the third roller 220c along the clockwise direction.

The other side of the three rollers is rotatably mounted on the second rotary plate 210b.

The three rollers are rotated together with the rotator 210 when the rotator 210 is rotated. That is, when the rotator 210 is rotated to form a circle locus, the three rollers are integrally rotated with the rotator while forming a circle locus as a whole.

Third, the adhesive sheet 230 surrounds the outer circumferential surfaces of the three rollers.

In particular, the adhesive sheet 230 is in close contact with the three rollers, and can be rotated along the outer peripheral surfaces of the rollers when the three rollers are rotated.

The adhesive sheet 230 may be formed of a porous material. That is, a plurality of suction grooves 231 are formed on the outer surface of the adhesive sheet 230. The suction groove 231 is recessed from the surface of the adhesive sheet 230.

Therefore, when the ledge film 110a transported along the ledge transporting unit 290 is pressed by one of the rollers, the tacky sheet 230 is brought into close contact with the ledger film 110a, When the adhesive sheet 230 is brought into close contact with the raw paper film 110a, the suction groove 231 is changed to a vacuum state, and a suction force capable of absorbing the raw paper film 110a is generated.

Fourth, the attachment portion 240 can be moved in at least one direction of the X axis direction in which the main unit film transfer unit 290 moves or in the Z axis direction perpendicular to the plane of the main unit film transfer unit 240 .

Here, the X-axis direction may be a direction in which the main reel film transporting unit 290 is moved, as shown in FIG. 3, and may be left or right in FIG. That is, the attachment portion 240 can be moved in the left direction or the right direction in Fig. The first side of the film adsorbed to the attachment portion 240 is moved toward the inside of the case 120 that is adsorbed to the case transferring portion 270 as the attachment portion 240 is moved in the X- It can be moved to a position where it can be brought into close contact with the end of one side face of the side faces.

As shown in Fig. 3, the Z-axis direction may be a direction perpendicular to the plane of the raw paper film transporting unit 290, and may be a vertical direction in Fig. That is, the attachment portion 240 can be moved upward or downward in FIG. The first side of the film adsorbed to the attachment portion 240 is moved toward the inside of the case 120 that is adsorbed to the case transporting portion 270 as the attachment portion 240 is moved in the Z- And can be in close contact with the end of one side of the side surfaces.

That is, as the attachment portion 240 moves in the X-axis direction, the first side of the film and the one end of one side of the inner side surfaces of the case 120 can be aligned, The first side of the film can be closely contacted with the end of one side of the inner side surfaces of the case 120 as the attachment part 240 moves.

Next, the main body film transfer unit 290 performs a function of transferring the main film 110a to the lower end in the direction in which the attachment unit 240 is located.

That is, as shown in FIG. 3, when the main film film 110a is placed on the main body film transfer unit 290, the main body film transfer unit 290 is moved in the direction of the attachment unit 240. When the ledger film 110a is sucked to the attachment portion 240, the ledger film transfer portion 290 is moved to its original position again and the new ledger film 110a is again transferred to the plane of the ledger film transfer portion 290 .

When the ledger film transfer part 290 is transferred to the lower end of the attachment part 240, the attachment part 240 can be lowered to suck the ledge film 110a. However, if the height of the ledger film transfer part 290 is set so that the plane of the ledge film 110a placed on the ledger film transfer part 290 can be brought into close contact with the lower end of the attachment part 240, When the film transferring unit 290 is transferred to the lower end of the attaching unit 240, the attaching unit 240 can suck the raw film 110a without moving up and down the attaching unit 240. That is, when the ledger film transfer part 290 is transferred to the lower end of the attaching part 240, the roller film 110a is rotated only by the rotation of the roller mounted on the attaching part 240, Lt; / RTI >

Next, the case transferring unit 270 can be moved in at least one direction of the X axis direction in which the main unit film transfer unit 290 moves or in the Z axis direction perpendicular to the plane of the main unit film transfer unit 290 have.

That is, the case transfer part 270 can be moved in the X-axis direction to transfer the case 120 having a curved surface to the upper end in the direction in which the attachment part 240 is located, And the inner surface of the case 120 are closely contacted with each other.

In other words, as the case transferring part 270 is moved in the X-axis direction, one end of the inner surface of the case 120, which is attracted to the case transferring part 270, Can be moved to a position where it can be brought into close contact with the first side of the film attached to the film (240).

As the case transferring part 270 is moved in the Z-axis direction, one end of the inner side surface of the case 120, which is sucked by the case transferring part 270, Can be brought into close contact with the first side of the film that is adsorbed on the film.

That is, as the case transfer part 270 is moved in the X-axis direction, the first side of the film can be aligned with the end of one side of the inner side surfaces of the case 120, The side of one side of the inner side surfaces of the case 120 and the first side of the film can be brought into close contact with each other as the case transferring part 270 is moved.

In the description of the attachment portion 240, it has been described that the attachment portion 240 can also be moved in at least one of the X-axis direction and the Z-axis direction. That is, in the present invention, any one of the attachment portion 240 or the case transfer portion 270 is moved in the X-axis direction or the Z-axis direction, The first side of the film and the end of the side surface can be brought into close contact with each other.

In order to perform the above function, the case transfer unit 270 includes a case adsorber 271 for sucking the case 120, a Z-axis driver for moving the case adsorber 271 in the Z- And an X-axis driver 273 for moving the case adsorber 271 in the X-axis direction.

Particularly, the case adsorber 271 may be formed with an adsorption groove for adsorbing the case 120, or may be formed with a vacuum adsorber, or may include various types of components for adsorbing the case Can be formed.

The function of the case transporting unit 270 will be described in detail as follows.

For example, the case transfer unit 270 may move the case 120 to a position corresponding to the attachment unit 240. That is, the case transfer unit 270 can move the case 120 in the X-axis direction.

The case transferring part 270 is formed so that one end of one side of the inner surfaces of the case 120 is in close contact with the first roller to which the first side of the film is attached, (120) can be lowered toward the first roller. That is, the case transfer unit 270 can move the case 120 in the Z-axis direction. When the case transfer part 270 is lowered and the first side of the film is attached to the end of the one side, the first roller is moved to the other side of the inner side of the case opposite to the one side , The rotator is rotated.

The case transfer unit 270 can raise the case 120 when the first roller is in close contact with the other side surface. That is, the case transfer part 270 can move the case in the Z-axis direction.

The case transferring unit 270 is configured to apply a constant pressure to the first roller while the rotator 210 of the attaching unit 240 performs the rotation, Axis direction perpendicular to the Z-axis direction.

As described above, the specific function of the case transporting unit 270 may be performed by the attaching unit 240. That is, the above-described function may be performed by moving the attachment portion 240 in the X-axis direction or the Z-axis direction instead of the case transfer portion 270.

3, the peeling unit 280 is attached to the adhesive sheet 230 and is attached to the adhesive sheet 230. The peeling unit 280 removes the protective film 210 from the protective film 110a, As shown in Fig.

To this end, adsorption grooves for adsorbing the protective film may be formed on the surface of the peeling unit 280. In addition to the adsorption grooves, various types of components for adsorbing the protective film may be formed on the peeling portion 280.

The peeling unit 280 may be a roller.

5A to 5F are various illustrations for explaining a method of attaching a film according to the present invention according to the present invention. Hereinafter, the same or similar contents as those described with reference to Figs. 2 to 4 are omitted or briefly described.

First, referring to FIG. 5A, along with the main sheet transporting unit 290, the main film 110a is transported in the direction of the adhesive sheet 230 surrounding the outer circumferential surfaces of the rollers. The raw material film 110a includes the film 110 and the protective film. The protective film functions to cover the adhesive formed on the film 110. The adhesive material has a function of attaching the film to the case 120.

Next, referring to FIG. 5B, the raw film 110a transported along the raw film transporting unit 290 is transported to the first and second rollers 210, And is adsorbed to the adhesive sheet 230 surrounding the outer circumferential surfaces of the adhesive sheet 230. That is, the adhesive sheet 230 on which the suction groove 231 is formed is brought into close contact with the raw film 110a, so that the raw film 110a is attached to the adhesive sheet 230.

Hereinafter, the present invention will be described by way of example in which the above-mentioned raw film film 110a is attached to the adhesive sheet 230 adjacent to the third roller 220c as shown in FIG. 5B. That is, the adhesive sheet 230 and the ledge film 110a come into close contact with each other by the third roller 220c, whereby the ledger film 110a is adsorbed on the adhesive sheet 230.

The process of adsorbing the raw paper film 110a to the adhesive sheet 230 is performed by using the third roller 220c adjacent to the raw paper film transferring unit 290 and the suction groove 231 Is adhered to one end of the raw film film 110a, the one end of the adhesive sheet 230 is sucked to the adhesive sheet 230. In this case, Wherein at least one of the first roller, the second roller and the third roller is rotated while the one end of the raw paper film 110a is being attracted to the adhesive sheet 230 so that the adhesive sheet 230 So that the entire surface of the raw material film 110a is continuously adsorbed to the adhesive sheet. Therefore, the main roller film 110a is moved in the direction of the second roller from the third roller 220c.

Next, referring to FIG. 5C, the protective film 111 is peeled from the raw material film 110a which is attracted to the adhesive sheet 230 and moves along the outer peripheral surface of the rollers together with the adhesive sheet.

As the third roller 220c, the second roller 220b and the first roller 220a are continuously rotated, the raw film 110a adsorbed on the adhesive sheet 230 is moved to the position shown in FIG. And is conveyed in a direction adjacent to the second roller 220b, as described above.

The peeling unit 280 is in close contact with the adhesive sheet 230 and the surface of the peeling unit 280 is formed with an adsorption groove capable of adsorbing the protective film 111. Therefore, when the protective film 111 covering the surface of the raw material film 110a is adhered to the peeling unit 280, the protective film 111 is adsorbed on the surface of the peeling unit 280 .

The protective film 111 is continuously moved in the direction of the first roller 220a through the second roller 220b and the peeling unit 280 is rotated, And is separated from the ledger film 110a.

Therefore, only the film 110 constituting the raw material film 110a is conveyed in the direction of the first roller 220a while being adsorbed on the adhesive sheet 230. [

The process of peeling the protective film 111 from the raw paper film 110a is performed by the third roller 220c adjacent to the raw paper film transferring unit 290, The peeling unit 280 having the suction groove formed thereon is brought into close contact with one end of the raw film 110a transferred to the second roller 220b, And the protective film 111 attached to the main film 110a continuously transported in the direction of the second roller 220b by the rotation of the peeling unit 280, ) Is continuously adsorbed on the peeling section to peel off the protective film (111) from the raw material film (110a).

5D, on the end of the first side of the film 110, which is adsorbed on the surface of the adhesive sheet 230 after the protective film 111 is stripped from the raw film 110a, The end of one side of the inner surface of the case having the curved surface is positioned.

For such an arrangement, first, the rotator 210 is rotated, and the first roller 220a may be disposed at the uppermost position. That is, as the rotator 210 is rotated, the first roller 220a can be moved from the position as shown in FIG. 5C to the position as shown in FIG. 5D.

Also, as described above, at least one of the case transferring part 270 and the attaching part 240 is moved in the X-axis direction or the Z-axis direction, so that at the end of the first side of the film 110, One end of the inner side surface of the case 120 having a curved surface is positioned. Here, the first side of the film 110 means the left side of the film shown in Fig. 5D. The end of one side of the inner side surface of the case 120 means the inner side of the left side of the case 120 shown in Fig. 5D.

5E, first, by moving at least one of the case transferring part 270 or the attaching part 240 in the X-axis or Z-axis direction, the one side of the case 120 The first side of the film 110 is adhered to the end of the film 110 and the first side is attached to the end of the side of the film 110. Secondly, And attaches the remaining parts to the inner surface of the case 120. [ The case transferring part 270 can be moved in the X axis direction or the Z axis direction while the attachment part 240 is rotated in the second step or the attachment part 240 can be moved in the X axis direction or the Z axis direction Direction.

For example, the case 120 may be moved in the X-axis or Z-axis direction so that the one end of the one side of the case 120 is in close contact with the first side of the film 110, 110 is attached to the end. 5D, among the films 110 adsorbed on the surface of the adhesive sheet after the protective film 111 is peeled off from the raw material film 110a, the first film 220a is adjacent to the first film 220a Is attached to the end when the case transferring portion 270 is moved in the X-axis or Z-axis direction and the end and the first roller are in close contact with each other. In this case, the portions of the film 110 excluding the first side are attached to the surface of the adhesive sheet from the first roller 220a to the region adjacent to the second roller 220b.

5D, when the first side is attached to the end of the case 120, the rotator 210 of the attachment portion 240 is rotated, and the rotation of the rotator 210 The first roller 220a and the inner surfaces of the case are brought into close contact with each other so that the remaining portions of the film can be attached to the inner surface of the case.

Here, the process of attaching the film to the inner surface of the case 120 by rotating the rotator 210 can be subdivided as follows.

For example, after the first side of the film 110 is brought into close contact with the end of the one side, the first side is attached to the end of the one side, 5E, the first roller 220a and the inner surface are in close contact with each other, and the film 110 is attached to the inner surface of the first roller 220a.

In this case, when the film 110 is attached to the inner surface of the case by the rotation of the rotator 210, in accordance with the circular motion of the rotator 210, the case- It is possible to perform fine movement in the X-axis and Z-axis directions while a constant pressure is applied to the first roller 220a.

When the first roller 220a is brought into close contact with the other side of the inner surface of the case that faces the one side surface by the rotation of the rotator 210, . That is, when the first roller 220a can not be rotated by the locus of the circle A shown in FIG. 5E due to the bent portion of the other side end of the case 120, the rotation of the rotator 210 In this case, the case transfer part 270 may be vertically raised or the attachment part 240 may be vertically lowered, so that the film 110 can be completely attached to the other end of the other side.

However, even if the rotator 210 does not stop rotating, the case transfer part 270 moves in the X-axis and Z-axis directions in accordance with the rotation of the rotator 210, To the end of the < / RTI >

That is, while the rotator 210 performs the movement and the rotation, the film 110 attached to the adhesive sheet 230 is transferred to the inside of the case 120 by the first roller 220a . In this case, the case transfer unit 270 can be moved in the X-axis and Z-axis directions.

Further, while the rotator 210 performs the rotation so that the first roller 220a forms the locus of the circle A as shown in FIG. 5E, the case transferring part 270 is rotated at a constant pressure Can be moved in the Z-axis direction while being applied to the first roller 220a.

That is, the locus A of the first roller 220a may exceed the position of the inner surface of the case 120. [ In this case, if both the case transferring part 270 and the attaching part 240 are stopped at a specific position in the Z-axis direction, the first roller 220a is brought into close contact with the case 120, Can not be rotated along the locus (A). In order to prevent this, at least one of the case transferring part 270 and the attaching part 240 may be moved up and down along the Z-axis direction as described above.

In order to prevent the first roller 220a from being rotated by the case 120, at least one of the case transferring part 270 and the attachment part 240 moves along the X- .

The rotation of the rotator 210 from the one side direction to the other side direction, that is, the clockwise direction of the circle A shown in FIG. 5E, When the film 110 is attached to the inner surface of the case, the case transferring part 270 can be moved not only in the Z-axis direction, but also in the X-axis direction. For example, when the outer diameter of the first roller 220a is smaller than or greater than the curvature of the curved portion of the case 120, The X axis and the Z axis.

If the length of the case 120, for example, the length of the left and right sides of the case 120 in FIG. 5E is formed to be considerably long, that is, if the trajectory of the circle A is smaller than the case, The first roller 220a may not be in close contact with the other lateral direction of the case when the first roller 220a is rotated from the one side direction of the case along the other side direction along the first direction A to the other side direction. In this case, the case transferring section 270 needs to be moved not only in the Z-axis but also in the X-axis direction. That is, the first roller 220a can be brought into close contact with the other side of the case by moving the case transporting unit 270 in the X-axis and Z-axis directions.

Finally, referring to FIG. 5F, the film 110 is completely attached to the inner surface of the case 120 having a curved surface by the above process.

In the above description, when the film 110 is attached to the case by rotating the rotator 210, the first roller 220a to the third roller 220c are in the IDLE state . That is, the first roller 220a to the third roller 220c are not rotated by the second motor and are rotated in the IDLE state.

However, at least one of the first roller 220a and the third roller 220c may be rotated by the second motor depending on the shape of the case 120 and the like.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of.

110: Film 110a:
111: protective film 120: case
200: Film adhering device 210: Rotor
220a, 220b, 220c: roller 230: pressure sensitive adhesive sheet
240: attaching portion 270: case transferring portion
280: peeling section 290: ledger film transfer section

Claims (20)

A ledger film feeder for feeding the ledger film;
Wherein the raw film transferred by the main film transporting unit is adsorbed by an adhesive sheet moving along the outer circumferential surface of the rollers in contact with two or more rollers to wrap the rollers, An attaching portion attaching the peeled and remaining film to a case having a curved surface, the rollers being configured to rotate while forming a circle locus;
A peeling unit for peeling the protective film from the raw film attached to the adhesive sheet; And
And a case transferring portion for moving the case to a position corresponding to the attaching portion. The method according to claim 1,
The attaching portion
A rotator rotated by the first motor;
Three rollers each rotatably mounted on the rotator; And
And the adhesive sheet enclosing outer peripheral surfaces of the three rollers. 3. The method of claim 2,
And at least one of the three rollers is rotated by the second motor. 3. The method of claim 2,
The rotating machine includes:
A first rotating plate which is rotated by the first motor and on which one side of the three rollers is rotatably mounted; And
And a second rotary plate on which the other side of the three rollers is rotatably mounted. 5. The method of claim 4,
And a second motor for rotating at least one of the three rollers is mounted on the first rotary plate or the second rotary plate. 3. The method of claim 2,
Wherein the three rollers are rotated together with the rotator when the rotator is rotated. 3. The method of claim 2,
Wherein the three rollers are mounted in a triangular shape in the order of the first roller, the second roller and the third roller along the clockwise direction. The method according to claim 1,
The case-
Wherein the movable film transporting unit is moved in at least one of an X-axis direction in which the primary film transport unit moves or a Z-axis direction perpendicular to a plane of the primary film transport unit. The method according to claim 1,
The case-
Wherein the case is moved so that the one end of one side of the inner surfaces of the case is in close contact with the first side of the film. 10. The method of claim 9,
Wherein the case transferring portion is moved so that the first side of the film is attached to the end of the one side surface and then the roller of the rollers which is in close contact with the first side of the film, And is moved to the other side opposite to the one side. 11. The method of claim 10,
While the rollers which are in close contact with the first side of the film are moved to the other side of the inner side surfaces of the case opposite to the one side surface, the case transferring portion, while applying a constant pressure to the roller, In the direction of the Z axis perpendicular to the plane of the main film transport section or in the X axis direction in which the main film transport section moves. 3. The method according to claim 1 or 2,
The attaching portion
Wherein the movable film transporting unit is moved in at least one of an X-axis direction in which the primary film transport unit moves or a Z-axis direction perpendicular to a plane of the primary film transport unit. Adsorbing the raw film fed along the raw film transferring unit to the adhesive sheet which is in contact with the first roller, the second roller and the third rollers mounted on the attachment unit in a clockwise direction and surrounds the rollers;
Peeling the protective film from the ledger film, which is adsorbed to the pressure sensitive adhesive sheet and moves along the outer circumferential surface of the first roller, the second roller and the third rollers together with the pressure sensitive adhesive sheet;
Positioning an end of one side of the inner side of the case having a curved surface at the end of the first side of the film adsorbed on the surface of the adhesive sheet after peeling off the protective film from the ledger film; And
The first side of the film is adhered to the one end of the one side of the case and the first side is attached to the end of the one side and then the attachment is rotated to attach the remaining part of the film to the inner side ≪ / RTI > 14. The method of claim 13,
Wherein the step of adsorbing the raw film to the adhesive sheet comprises:
Wherein the adhesive sheet having the suction grooves formed thereon is brought into close contact with the raw film to adsorb the raw film to the adhesive sheet. 14. The method of claim 13,
Wherein the step of adsorbing the raw film to the adhesive sheet comprises:
Adhering the adhesive sheet having the suction groove formed thereon to one end of the raw film using the third roller adjacent to the original film transferring unit and adsorbing the one end of the adhesive sheet to the adhesive sheet; And
Wherein the first roller, the second roller, and the third roller are rotated to rotate the adhesive sheet, thereby continuously adsorbing the entire surface of the raw film to the adhesive sheet, Lt; RTI ID = 0.0 > direction. ≪ / RTI > 14. The method of claim 13,
Wherein the step of peeling the protective film from the raw film comprises:
And a peeling section having a suction groove formed on one end of the raw film film which has been attracted to the adhesive sheet by the third roller adjacent to the original film conveying section and then conveyed in the direction of the second roller, Adsorbing a film on the peeling portion; And
Continuously peeling off the protective film from the raw film by continuously adsorbing the protective film adsorbed on the raw film continuously fed in the direction of the second roller by the peeling section to the peeling section ≪ / RTI > 14. The method of claim 13,
The step of attaching the film to the inner side comprises:
Attaching the first side of the film to the end so that the one end of the one side of the case is in close contact with the first side of the film; And
And attaching the remaining portion of the film to the case by rotating the attachment portion after the first side is attached to the end and bringing the first roller and the case into close contact by rotation of the attachment portion A method of attaching a film. 18. The method of claim 17,
And attaching the film to the case by rotating the attachment portion,
The first side of the film is adhered to the end of the one side and the first side is attached to the end of the one side and then the attachment is rotated so that the first roller and the inner side are in close contact with each other, Attaching the film to the inner surface; And
And attaching the second side of the film to the other side when the first roller is in contact with the other side of the inner side of the case that faces the one side by the rotation of the attachment portion Way. 14. The method of claim 13,
Wherein the attaching portion is moved in at least one of an X-axis direction in which the ledger film conveying portion moves or a Z-axis direction perpendicular to the plane of the ledger film conveyance portion. 14. The method of claim 13,
The case transferring portion for moving the case to the position corresponding to the attaching portion is moved in at least one direction of the X axis direction in which the ledger film conveyance portion moves or the Z axis direction perpendicular to the plane of the ledge film conveyance portion ≪ / RTI >

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