KR102317428B1 - Film attaching device for a curve panel - Google Patents

Abstract

The objective of the present invention is to provide a film attaching apparatus for a curved panel that can be manufactured compactly, and can also be effectively attached onto a curved panel compared to the conventional apparatuses, so that the attachment quality can be improved, and thereby potentially being applied to various products. To this end, a film attaching apparatus for a curved panel is disclosed. A film attaching apparatus for a curved panel according to one embodiment of the present invention comprises: an apparatus body; a film attaching unit having a movable film attaching part that attaches a film onto the surface of a curved panel by using a pressure-sensitive adhesive sheet while moving in a predetermined X-axis direction, and connected to one side of the apparatus body; and an interlocking type sheet tension unit connected to the film attaching unit and providing tension to the pressure-sensitive adhesive sheet while interlocking with the operation of the film attaching unit when attaching a film onto the surface of a curved panel.

Description

Film attaching device for a curve panel

The present invention relates to an apparatus for attaching a film for a curved panel, and more particularly, it can be manufactured compactly and can attach a film to a curved panel more effectively than in the prior art, so that the adhesion quality can be improved and it can be applied to various products. It relates to a film attachment device for a curved panel.

A curved panel means a panel in which the surface is not flat, that is, the surface is curved or curved in three dimensions (3D).

Curved panels are widely used in devices and products across industries, from mobile products such as smartphones to automobiles and aircraft. These panels are usually manufactured with a film attached to the surface.

The film attached to the panel may be applied in consideration of the material characteristics of the panel. That is, depending on the type or function of the panel, a film with added functions such as a function to protect the surface of the panel, a function to reflect light, and a function to direct light is attached to the surface of the panel, and the work is performed through the film attachment device. .

On the other hand, the film attaching device for a curved panel according to the prior art takes a method of attaching the film to the curved panel by an air expansion method. That is, after expanding the soft rubber provided in the film attaching device for the curved panel in a vacuum state by adding air, the film has been attached to the surface of the curved panel.

However, although this film attachment method can be applied to curved panels of small mobile products such as smartphones, pads, and digital cameras, it is not easy to apply to large curved panels applied to automobiles and the like.

It is difficult to apply practically because the vacuum chamber that can accommodate the large curved panel and the accompanying devices and facilities increase or increase the cost, and also, due to the long production line, fine air does not escape in the vacuum process. Considering the fact that it is highly likely to lead to defective products, it is necessary to develop a technology for a film attachment device to solve this problem.

Korean Intellectual Property Office Application No. 10-2008-0085881

Therefore, the technical problem to be achieved by the present invention is to provide a film attachment device for a curved panel that can be manufactured compactly and can be attached to a curved panel more effectively than in the prior art, thereby improving the attachment quality and applicable to various products will do

According to one aspect of the present invention, a device body; a film attaching unit having a movable film attaching unit for attaching a film to the surface of a curved panel using an adhesive sheet while moving in a predetermined X-axis direction, the film attaching unit connected to one side of the device body; and an interlocking sheet tension unit connected to the film attaching unit and providing tension to the adhesive sheet while interlocking with the operation of the film attaching unit during the film attaching operation. can be

The interlocking sheet tension unit may include: a unit connection fixing unit connected to and fixed to the film attachment unit; and a tension roller for supporting the pressure-sensitive adhesive sheet in a tensionable manner, and may include a tension moving body that moves relative to the unit connection fixing unit during the film attaching operation.

The interlocking seat tension unit may further include a tension shaft part connected to the unit connection fixing part and the tension moving body part and forming a movement path of the tension moving body part.

The interlocking seat tension unit may further include a tension cylinder connected to one side of the unit connection fixing part and moving the tension moving body part along the tension shaft part.

The tension moving body may be provided with a sheet support roller disposed around the tension roller and supporting the pressure-sensitive adhesive sheet.

The unit connection fixing portion may be provided with an angle variable fixing portion for fixing by varying the angle of the unit connection fixing portion with respect to the film attachment unit.

a column connected to one side of the device body along the vertical Z-axis direction; and a Z-axis driving unit provided on the column and connected to the film attaching unit, the Z-axis driving unit driving the film attaching unit on the column along the Z-axis direction.

The film attachment unit may further include an X-axis driving unit to which the interlocking sheet tension unit is connected to one side and disposed in the X-axis direction to move the movable film attachment unit in the X-axis direction.

The film attaching unit may further include a sheet tension maintaining unit connected to the X-axis driving unit on the opposite side of the interlocking sheet tension unit and maintaining the tension of the adhesive sheet at the corresponding position.

The movable film attachment unit may include an attachment roller that is moved by pressure on the pressure-sensitive adhesive sheet to attach the film to the pressure-sensitive adhesive sheet or to attach the film to the curved panel.

The movable film attaching unit may further include a backup roller that is external to the attaching roller and supports rotation of the attaching roller.

The movable film attachment unit may further include a roller support module for supporting the attachment roller and the backup roller as one body.

The movable film attachment unit may further include a plurality of idle rollers provided on a path of the pressure-sensitive adhesive sheet and supporting the pressure-sensitive adhesive sheet.

It may further include a device controller for controlling the operation of the film attaching unit and the interlocking sheet tension unit so that the interlocking sheet tension unit operates while interlocking with the operation of the film attaching unit during the film attaching operation.

It may further include a film loading stage provided on one side of the apparatus main body, on which the film is loaded.

The film loading stage may be a movable film loading stage movable along the X-axis direction.

It may further include a panel loading stage provided on the other side of the device body, on which the curved panel is loaded.

The panel loading stage may be a movable panel loading stage movable along the X-axis direction.

The film attachment operation may be performed under atmospheric pressure conditions.

According to the present invention, it is possible to attach a film to a curved panel more effectively than in the prior art while being able to manufacture compactly, so that the adhesion quality can be improved and it can be applied to various products.

1 is a schematic structural diagram of an apparatus for attaching a film for a curved panel according to an embodiment of the present invention.
FIG. 2 is a view of a state in which the film loading stage is operated in FIG. 1 .
FIG. 3 is a view of a state in which the panel loading stage is operated in FIG. 1 to attach a film.
4 is an enlarged view of the movable film attachment region of FIG. 1 .
5 is an enlarged view of the interlocking seat tension unit area.
6 is a control block diagram of an apparatus for attaching a film for a curved panel according to an embodiment of the present invention.

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 illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

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

1 is a schematic structural diagram of an apparatus for attaching a film for a curved panel according to an embodiment of the present invention, FIG. 2 is a view of the film loading stage operating in FIG. 1, and FIG. 3 is a panel loading stage in FIG. 1 It is a view of the state in which the film attachment operation is in progress, FIG. 4 is an enlarged view of the movable film attachment area of FIG. 1, FIG. 5 is an enlarged view of the interlocking sheet tension unit area, and FIG. 6 is an embodiment of the present invention It is a control block diagram of a film attaching device for a curved panel according to an embodiment.

Referring to these drawings, the film attaching device for a curved panel according to the present embodiment can be manufactured compactly and can attach a film (F, film) to a curved panel (P, curve panel) more effectively than in the prior art, thereby improving the adhesion quality. It can be increased and applied to various products.

The film attaching device for a curved panel according to this embodiment, which can provide such an effect, is mounted for each position on the device body 120 and the device body 120 and operates cooperatively while performing the film (F) attachment operation. It may include a film attachment unit 130 and an interlocking sheet tension unit 160 .

For reference, the curved panel P described in this embodiment may be a panel of a small mobile product such as a smart phone, a pad, or a digital camera, or a large panel applied to an automobile.

However, as described above, in the case of a large curved panel (P), various losses or problems have occurred because it was necessary to install a vacuum chamber and an accompanying device according to the prior art.

However, in the case of this embodiment, since the film (F) attachment operation proceeds under atmospheric pressure conditions, there is no need to construct a vacuum chamber or various devices attached thereto as in the past. Therefore, it is possible to attach the film (F) to the curved panel (P) more effectively than in the prior art while being able to manufacture compactly.

And, in this embodiment, the film (F) attached to the curved panel (P) is various types of optical films (or sheets) for transmitting, polarizing, or attaching light under optimal conditions, such as EMI films, It may be a prism film, a protective film, a diffusing film, a reflective film, DBEF, PVA, TAC, OCA, a release film, a compensation film, an anti-reflection film, a polarizer film, etc., but below, these are not distinguished and the film ( F).

Looking at the film attaching device for a curved panel according to the present embodiment in detail, first, the device body 120 forms the external structure of the film attaching device for a curved panel according to the present embodiment.

As described above, the film attachment unit 130 and the interlocking sheet tension unit 160 are mounted at each position on the device body 120 .

A plurality of feet 125 are provided under the device body 120 . A height function may be added to the foot 125 . Due to the foot 125, the upper portion of the device body 120 may be maintained in a horizontal state.

Find out more specifically. A column 121 is disposed on the center of the device body 120 . The column 121 is a structure connected to the device body 120 along the vertical Z-axis direction.

The Z-axis driving unit 123 is provided in the column 121 . The Z-axis driving unit 123 is provided in the column 121 and connected to the film attaching unit 130 , and drives the film attaching unit 130 on the column 121 along the Z-axis direction. When the film attachment unit 130 is driven along the Z-axis direction, the interlocking sheet tension unit 160 is also driven together. The Z-axis driving unit 123 may be applied as a linear motor.

A film loading stage 191 and a panel loading stage 194 are provided on both sides of the device body 120 with respect to the column 121 .

The film loading stage 191 is provided on one side of the device body 120 and forms a place where the film F is loaded.

In this embodiment, the film loading stage 191 is applied as a movable film loading stage 191 movable along the X-axis direction of FIG. 1 . Accordingly, a moving means for movement in the X-axis direction, for example, a linear motion (not shown) is applied to the movable film loading stage 191 .

An alignment unit 192 for aligning the film F loaded on the movable film loading stage 191 is disposed around the movable film loading stage 191 .

As the alignment method, a method of aligning the movable film loading stage 191 in X, Y, θ directions after photographing an alignment mark with a camera may be adopted, but other methods may be applied. Accordingly, the scope of the present invention is not limited to these matters.

The panel loading stage 194 is provided on the other side of the device body 120 and forms a place where the curved panel P is loaded.

In this embodiment, the panel loading stage 194 is also applied as a movable panel loading stage 194 movable along the X-axis direction of FIG. 1 . Accordingly, a moving means for movement in the X-axis direction, for example, a linear motion (not shown) is also applied to the movable panel loading stage 194 .

The film attachment unit 130 is a device connected to one side of the device body 120 and substantially performs the film (F) attachment operation. The film attaching unit 130 may include a movable film attaching unit 150 , an X-axis driving unit 131 , and a sheet tension maintaining unit 140 .

The movable film attachment part 150 includes an attachment roller 151 and a backup roller 152 connected to one body by a roller support module 155 . An idle roller 143 is disposed around the backup roller 152 .

The attachment roller 151 is a roller that is moved by pressure on the pressure-sensitive adhesive sheet 110 so that the film F is attached (attached) to the pressure-sensitive adhesive sheet 110 or the film F is attached to the curved panel P.

In other words, the adhesion roller 151 presses the pressure-sensitive adhesive sheet 110 from one side to the other side while rotationally moving on the rear surface of the pressure-sensitive adhesive sheet 110 . Therefore, the process of adhering (transferring) the film F to the pressure-sensitive adhesive sheet 110 may proceed, and also the process of attaching the film F to the curved panel P may proceed.

The backup roller 152 is circumscribed to the attachment roller 151 and is a roller that supports the rotation of the attachment roller 151 . The backup roller 152 may have a larger diameter than the attachment roller 151 . Due to the action of the backup roller 152 , the attachment roller 151 causes the film to adhere to the electrostatic chuck layer 113 of the adhesive sheet 110 . Make sure that the process of making it stick or attaching the film to the panel goes well. Of course, the backup roller 152 is not necessarily applied. That is, the backup roller 152 may not be present.

The attachment roller 151 and the backup roller 152 described above may be supported as one body by the roller support module 155 .

Therefore, when the roller support module 155 is up, the attachment roller 151 and the backup roller 152 can also be up together, and when the roller support module 155 is down, the attachment roller 151 ) and the backup roller 152 may also be down together.

The X-axis driving unit 131 is connected to one side of the interlocking sheet tension unit 160, is disposed in the X-axis direction, and serves to move the movable film attachment unit 150 in the X-axis direction. Although not shown in detail, the X-axis driving unit 131 may also be applied in a linear motion like the Z-axis driving unit 123 .

The sheet tension maintaining unit 140 is connected to the X-axis driving unit 131 on the opposite side of the interlocking sheet tension unit 160 , and serves to maintain the tension of the adhesive sheet 110 at the corresponding position.

The sheet tension maintaining unit 140 is movable by the tension maintaining cylinder 141 and the tension maintaining cylinder 141, but maintaining the tension of the adhesive sheet 110 through positional movement. Tension maintaining roller 142 includes

An idle roller 143 supporting the pressure-sensitive adhesive sheet 110 while rotating without power is provided around the tension maintaining roller 142 .

The interlocking sheet tension unit 160 is connected to the film attaching unit 130, and serves to provide tension to the adhesive sheet 110 while interlocking with the operation of the film attaching unit 130 during the film (F) attaching operation. .

The interlocking seat tension unit 160 includes a unit connection fixing part 161 , a tension moving body part 163 , a tension shaft part 167 and a tension cylinder 168 .

The unit connection fixing unit 161 is a structure connected to and fixed to the film attaching unit 130 . The tension moving body part 163, the tension shaft part 167 and the tension cylinder 168 are connected to the unit connection fixing part 161 and supported.

The unit connection fixing part 161 is provided with an angle variable fixing part 161a. The variable angle fixing part 161a serves to change and fix the angle of the unit connection fixing part 161 with respect to the film attaching unit 130 .

In this embodiment, the variable angle fixing part 161a is provided as an arc-shaped long hole. Accordingly, the overall angle of the interlocking seat tension unit 160 can be easily set. Although the bolts are not shown in the drawing, after setting the overall angle of the interlocking seat tension unit 160 with the angle variable fixing part 161a, the bolts must be fastened so that the setting angle does not change.

The tension moving body 163 is a structure that moves relative to the unit connection fixing unit 161, ie, moves in the L1 or L2 direction of FIG. 5 during the film (F) attachment operation.

A tension roller 164 for tensionably supporting the adhesive sheet 110 is rotatably mounted on one side of the tension moving body 163 . In addition, a sheet support roller 165 for supporting the attachment sheet 110 is provided around the tension roller 164 . Both the tension roller 164 and the sheet support roller 165 are non-motorized free-rotating rollers.

The tension shaft portion 167 is connected to the unit connection fixing portion 161 and the tension movement body portion 163 to form a movement path of the tension movement body portion 163 .

The tension cylinder 168 is connected to one side of the unit connection fixing part 161 , and serves to move the tension moving body part 163 along the tension shaft part 167 . When the pressure is applied to the body of the tension cylinder 168 and the rod advances, the tension roller 164 of the tension moving body 163 may advance in the L1 direction of FIG. 5, and in the opposite case, the tension in the L2 direction of FIG. The roller 164 may retract.

Meanwhile, the device controller 180 is mounted in the film attaching device for a curved panel according to the present embodiment for controlling the device.

The device controller 180 interlocks the film attaching unit 130 with the film attaching unit 130 and the interlocking sheet tension unit 160 so that the interlocking sheet tension unit 160 operates while interlocking with the operation of the film attaching unit 130 during the film (F) attaching operation. can control the behavior of

Of course, movement operations of the film loading stage 191 and the panel loading stage 194 may also be organically controlled by the device controller 180 .

The device 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 is the film attaching unit 130 and the interlocking sheet so that the interlocking sheet tension unit 160 operates while interlocking with the operation of the film attaching unit 130 during the film (F) attaching operation in this embodiment. It may be one of various computer processors that can be industrially applied to control the operation of the tension unit 160 .

The memory 182 (MEMORY) is connected to the central processing unit (181). The memory 182 is a computer-readable recording medium, which may be installed locally or remotely, and may be easily 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 to the central processing unit 181 to support typical operations of the processor. The support circuit 183 may include a cache, a power supply, a clock circuit, an input/output circuit, a subsystem, and the like.

In this embodiment, the device controller 180 interlocks the film attaching unit 130 and the interlocking sheet tension so that the interlocking sheet tension unit 160 operates while interlocking with the operation of the film attaching unit 130 during the film (F) attaching operation. It controls the operation of the unit 160 , such a series of processes may be stored in the memory 182 . 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 present invention has been described as being executed by a software routine, it is also possible that at least some of the processes of the present invention are performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, implemented in hardware such as an integrated circuit, or implemented by a combination of software and hardware.

Hereinafter, the operation of the film attaching device for a curved panel according to the present embodiment will be briefly described.

As shown in FIG. 1 , the film F is loaded on the film loading stage 191 , and the alignment is first performed in a state in which the curved panel P is loaded on the panel loading stage 194 .

Then, as shown in FIG. 2 , the film loading stage 191 is moved to the working position. Then, the film F is transferred to the adhesive sheet 110 by the action of the film attaching unit 130 . After the film F is adhered (attached) to the pressure-sensitive adhesive sheet 110, that is, transferred, the film loading stage 191 is restored to its original position.

Next, after the panel loading stage 194 is moved to the working position and aligned as shown in FIG. 3 , the film F attaching operation using the adhesive sheet 110 is performed at this position. That is, by the action of the Z-axis driving unit 123 and the X-axis driving unit 131, the roller support module 155 is moved from the other side to one side, so that the attachment roller 151 due to the force pressing the adhesive sheet 110 causes the curved panel ( Allow the film (F) to be attached to P).

At this time, the interlocking seat tension unit 160 operates, that is, the tension cylinder 168 operates to gradually move the tension moving body 163 in the L1 direction of FIG. is provided to the pressure-sensitive adhesive sheet 110 to increase the adhesion quality. The pressing force by the tension cylinder 168 may be a pressure low enough to be accompanied when the film F is attached to the curved panel P.

After the film F is attached to the curved panel P, the tension cylinder 168 of the interlocking sheet tension unit 160 operates to return the tension moving body 163 to the L2 direction of FIG. The attachment unit 130 also returns to its original position.

Then, after the film loading stage 191 is returned to its original position, the attached curved panel P is taken out and a new curved panel P is loaded again to perform the same operation.

According to this embodiment, which operates in the structure as described above, it is possible to attach the film (F, film) to the curved panel (P) more effectively than in the prior art while being able to manufacture it compactly, so that the attachment quality can be improved. In addition, it can be applied to various products.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

P : curved panel F : film
110: adhesive sheet 120: device body
121: column 123: Z-axis driving unit
130: film attaching unit 131: X-axis driving unit
140: sheet tension maintaining part 150: removable film attachment part
151: attachment roller 152: backup roller
155: roller support module 156: idle roller
160: interlocking seat tension unit 161: unit connection fixing part
161a: angle variable fixing part 163: tension moving body part
164: tension roller 165: sheet support roller
167: tension shaft 168: tension cylinder
180: device controller

Claims (19)

device body;
a film attaching unit having a movable film attaching unit for attaching a film to the surface of a curved panel using an adhesive sheet while moving in a predetermined X-axis direction, the film attaching unit connected to one side of the device body; and
An interlocking sheet tension unit connected to the film attaching unit and providing tension to the adhesive sheet while interlocking with the operation of the film attaching unit during film attaching operation,
The interlocking seat tension unit,
a unit connection fixing unit connected to and fixed to the film attachment unit; and
A tension roller for supporting the pressure-sensitive adhesive sheet in a tensionable manner, and including a tension moving body that moves relative to the unit connection fixing unit during the film attachment operation,
The film attachment device for a curved panel, characterized in that the unit connection fixing portion is provided with an angle variable fixing portion for fixing by changing the angle of the unit connection fixing portion with respect to the film attachment unit. delete According to claim 1,
The interlocking seat tension unit,
The film attachment device for a curved panel, characterized in that it further comprises a tension shaft portion connected to the unit connection fixing portion and the tension movement body portion to form a movement path of the tension movement body portion. 4. The method of claim 3,
The interlocking seat tension unit,
The film attachment device for a curved panel, characterized in that it is connected to one side of the unit connection fixing part, and further comprising a tension cylinder for moving the tension moving body part along the tension shaft part. According to claim 1,
The film attaching apparatus for a curved panel, characterized in that the tension moving body is provided with a sheet support roller disposed around the tension roller and supporting the pressure-sensitive adhesive sheet. delete According to claim 1,
a column connected to one side of the device body along the vertical Z-axis direction; and
The film attaching device for a curved panel, characterized in that it is provided in the column and connected to the film attaching unit, and further comprising a Z-axis driving unit for driving the film attaching unit on the column along the Z-axis direction. According to claim 1,
The film attachment unit,
Film attachment device for a curved panel, characterized in that the interlocking sheet tension unit is connected to one side and further comprising an X-axis driving part disposed in the X-axis direction and moving the movable film attachment part in the X-axis direction. 9. The method of claim 8,
The film attachment unit,
The film attachment device for a curved panel, characterized in that it is connected to the X-axis driving unit at the opposite side of the interlocking sheet tension unit, and further comprises a sheet tension maintaining unit for maintaining the tension of the adhesive sheet at the corresponding position. According to claim 1,
The movable film attachment part,
and an attachment roller which is pressed and moved on the pressure-sensitive adhesive sheet to attach the film to the pressure-sensitive adhesive sheet or to attach the film to the curved panel. 11. The method of claim 10,
The movable film attachment part,
The film attaching apparatus for a curved panel according to claim 1, further comprising a backup roller that is external to the attaching roller and supports rotation of the attaching roller. 12. The method of claim 11,
The movable film attachment part,
Film attachment device for a curved panel, characterized in that it further comprises a roller support module for supporting the attachment roller and the backup roller as one body. 12. The method of claim 11,
The movable film attachment part,
Film attachment device for a curved panel, characterized in that it further comprises a plurality of idle rollers provided on the path of the pressure-sensitive adhesive sheet to support the pressure-sensitive adhesive sheet. According to claim 1,
Curved surface, characterized in that it further comprises a device controller for controlling the operation of the film attaching unit and the interlocking sheet tension unit so that the interlocking sheet tension unit operates while interlocking with the operation of the film attaching unit during the film attaching operation Film attachment device for panels. According to claim 1,
A film attachment device for a curved panel, which is provided on one side of the device body, and further comprises a film loading stage on which the film is loaded. 16. The method of claim 15,
Film attachment device for a curved panel, characterized in that the film loading stage is a movable film loading stage movable along the X-axis direction. According to claim 1,
The film attachment device for a curved panel, characterized in that it is provided on the other side of the device body, and further comprises a panel loading stage on which the curved panel is loaded. 18. The method of claim 17,
and the panel loading stage is a movable panel loading stage movable along the X-axis direction. According to claim 1,
Film attachment device for a curved panel, characterized in that the film attachment operation is carried out under atmospheric pressure conditions.

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