JP2001294361A - Adhesive tape sticking device, part mounting machine, and display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive tape sticking device capable of stably peeling a releasing paper from an adhesive tape and having excellent product productivity. SOLUTION: A releasing paper 2b is peeled off from an ACF 2 stuck to a liquid crystal panel 13 when a roller unit 5 is moved to the feeding side of the ACF 2 with a lower roller 6 abutted to the ACF 2, an upper roller 7 abutted to the back face of the releasing paper 2b peeled off from the ACF 2 and the peeled releasing paper 2b held means of a first chuck part 12. In this way, while the roller unit 5 is moved, the releasing paper 2b peeled off from the ACF 2 can be kept at a fixed angle substantially to the face of the ACF 2 in the vicinity of the lower roller 6, so that the adhesive tape 2a can be prevent from peeling off while foam formation between the adhesive tape 2a and the liquid crystal panel 13 can be prevent, and consequently, the releasing paper 2b can peeled off stably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape attaching apparatus for attaching an adhesive tape for fixing a mounted component to a liquid crystal panel or the like, and a component mounting machine using the same.

[0002]

2. Description of the Related Art Hitherto, there has been known a component mounter in which an adhesive tape for fixing a mounted component is attached to a liquid crystal panel or the like, and the mounted component is pressure-bonded to the adhesive tape. For example,
ACF (anisotropic conductive film) as an adhesive tape with release paper is attached to the liquid crystal panel, and after the release paper of the ACF is peeled off, TCP (thin LSI package) is pressed on the ACF and TCP is mounted on the liquid crystal panel. Electronic component mounting machines.

FIG. 5 is a perspective view showing an entire example of a conventional electronic component mounter. Electronic component mounting machine 5 shown in this figure
Reference numeral 1 denotes an apparatus for mounting a TCP on a liquid crystal panel. AC
The ACF is attached to the liquid crystal panel by the F attaching device 52, and the release paper of the ACF is peeled off. Thereafter, the TCP is mounted on the liquid crystal panel via the TCP temporary press-bonding section 53 and the TCP final press-bonding section 54.

The transfer arm 55 is for transferring a liquid crystal panel. The liquid crystal panel transferred to the transfer arm 55 from the outside of the apparatus is transferred to the adjacent transfer arm 55 sequentially when the operations of the respective units 52 to 54 are completed, and transferred in the direction of the arrow a.

FIG. 6 shows the AC in the ACF attaching device 52.
4 shows details of the release paper peeling step F. FIG. 6 (a)
Shows a state after the ACF 57 is attached to the liquid crystal panel 56, and the adhesive tape 57a of the ACF 57 is adhered to the liquid crystal panel 56. The supply side of the ACF 57 is supported by a roller 58, and the release side is supported by a release paper 57 b by a roller 59. FIG. 6B shows a peeled state of the release paper 57b. When the roller 59 moves in the direction of the arrow b, the release paper 57b is peeled from the adhesive tape 57a.
FIG. 6C shows a state after the release of the release paper 57b is completed. From this state, the roller 58 rises, and FIG.
As shown in (d), the attachment of the adhesive tape 57a to the liquid crystal panel 56 is completed.

[0006]

However, in the above-described conventional component mounting machine, the peeling angle of the release paper 57b is not necessarily constant at the release portion of the release paper 57b indicated by the part B in FIG. 6B. When the release paper 57b is peeled off, the adhesive tape 57a is peeled off from the liquid crystal panel 56, or air bubbles are mixed between the adhesive tape 57a and the liquid crystal panel 56, and stable release of the release paper 57b is not possible. There was a problem.

After the release of the release paper 57b is completed, FIG.
As shown in (d), it is necessary to move the roller 59 in the direction of arrow c and return it to the peeling start position again.
During this time, other operations are stopped, and after the roller 59 returns, the ACF 57 is supplied in the direction of the arrow c, which has a problem in production efficiency.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and is capable of stably releasing a release paper from an adhesive tape, and is excellent in productivity with an adhesive tape application apparatus and a component mounting machine. And a display panel manufactured using the same.

[0009]

In order to achieve the above object, an adhesive tape applying apparatus of the present invention comprises: attaching an adhesive tape with release paper supplied on an object to the object;
A pressure-sensitive adhesive tape sticking device that peels off release paper from the release tape with release paper, and a surface contact unit that contacts the surface of the release tape with release paper attached to the object, and the surface contact unit. A back surface contact unit that is located on the side in the direction in which the release paper is peeled off and abuts against the back surface of the release paper,
A moving unit that moves the front surface contact unit and the back surface contact unit to the supply side of the release tape with the release paper while maintaining the positional relationship between the front surface contact unit and the back surface contact unit constant; It is characterized by having. According to the pressure-sensitive adhesive tape applying device as described above, during the movement of the front surface contacting means and the back surface contacting means, the release paper peeled from the pressure-sensitive adhesive tape with release paper, the adhesive with release paper near the front surface contacting means. It is possible to maintain a substantially constant angle of inclination with respect to the tape application surface. For this reason, peeling of the adhesive tape from the object at the time of peeling of the release paper and entry of air bubbles between the adhesive tape and the object can be prevented, and stable release of the release paper can be achieved. Can be.

In the pressure-sensitive adhesive tape applying apparatus, the back surface contact means is located behind the front surface contact means with respect to the moving direction of the front surface contact means and the back surface contact means when the release paper is peeled off. It is preferable to be arranged on the side.

It is preferable that the movement of the surface contact means is performed in a state where the surface contact means presses the adhesive tape with release paper. According to the pressure-sensitive adhesive tape applying apparatus as described above, peeling of the pressure-sensitive adhesive tape from the object at the time of peeling of the release paper, and mixing of bubbles between the pressure-sensitive adhesive tape and the object can be performed more reliably. Therefore, release of the release paper becomes more stable.

Further, when the front surface contacting means and the back surface contacting means move to the supply side of the release tape with release paper, a first holding means for holding the release paper on the discharge side of the release paper released. It is preferable to have the holding means.

It is preferable that the front surface contact means and the back surface contact means are integrally formed as a peeling unit, and the peeling unit is moved to the supply side of the release tape with release paper by the moving means.

The release unit further has a second holding means for holding the release paper, and after releasing the release paper from the adhesive tape with release paper attached to the mounting object, Release the holding state of the first holding means,
While the release paper is being held by the second holding means, the peeling unit is moved in the release direction of the release paper, so that the adhesive tape with release paper is pulled out and supplied onto the mounting object. Is preferred. According to the pressure-sensitive adhesive tape applying apparatus as described above, the return operation of the peeling unit after the peeling is completed and the pulling-out of the pressure-sensitive adhesive tape with release paper are simultaneously performed, so that the production efficiency can be improved.

The release paper is relaxed by moving the first holding means to the supply side of the adhesive tape with release paper in a state where the release paper is held by the first holding means. In this state, it is preferable that the release unit is moved to the supply side of the adhesive tape with release paper to release the release paper from the adhesive tape with release paper attached to the mounting object. According to the pressure-sensitive adhesive tape applying apparatus as described above, when the target to which the pressure-sensitive adhesive tape with release paper is applied is a relatively soft material, the sinking of the target due to the contact of the surface contact means is performed with the release paper. And the stability of the peeling is enhanced.

Further, after the adhesive tape with release paper supplied on the object is attached to the object, the portion where the adhesive tape with release paper is attached is applied using ionized air. It is preferable to perform air blow.
According to the pressure-sensitive adhesive tape applying device as described above, the applied portion of the pressure-sensitive adhesive tape with release paper can be cooled, and furthermore, the static electricity of the release paper can be prevented, so that the release paper can easily be wound up after peeling. become.

Further, the component mounter of the present invention is a component mounter using each of the above-mentioned adhesive tape sticking devices, wherein a mounted component is fixed to the above-mentioned adhesive tape stuck to an object by the above-mentioned adhesive tape sticking device. It is characterized by doing.

Further, the display panel according to the present invention is characterized in that the mounted components are fixed using each of the component mounting machines.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, the overall basic configuration of the electronic component mounter is the same as the conventional example shown in FIG. 5, and the configuration of the ACF attaching device is different from the conventional example. FIG. 1 is a perspective view showing details of an ACF attaching section according to an embodiment of the present invention. In this embodiment, the mounting object is a liquid crystal panel, and the ACF attached to the liquid crystal panel is
By pressing TCP on the liquid crystal panel,
Is implemented.

In the ACF attaching apparatus 1 shown in FIG.
The supply side of F2 is supported by the roller 3, and the discharge side of the release paper 2b is supported by the roller 4. The ACF 2 supported by the roller 3 has a release paper 2b attached thereto, and the release paper 2b is in contact with the roller 3. The roller 4 supports only the release paper 2b separated from the adhesive tape 2a.

A separating unit 5 is arranged between the rollers 3 and 4. The peeling unit 5 is located above the front surface contacting means 6, which is in contact with the ACF 2 attached to the liquid crystal panel from above the surface of the release paper 2 b, and is located above the back surface of the release paper 2 b. A contact means 7 and a second holding means 8 for holding the release paper 2b and feeding the ACF 2 are provided.

The peeling unit 5 can be integrally moved in the longitudinal direction of the ACF 2 by the moving means. The movement of the peeling unit 5 makes it possible to feed the ACF 2 and peel off the release paper. .

In the present embodiment, the front contact means 6 and the back contact means 7 will be described as examples in which both are constituted by rollers as shown in FIGS. It shall be called 7. Further, the peeling unit 5 is hereinafter referred to as a roller unit 5 as an example including a lower roller 6 and an upper roller 7. Also, the second holding means 8
1 will be described as an example of holding and feeding with a chuck as shown in FIG.

Although the front contact means, the back contact means, the peeling unit, and the second holding means have been described as specific embodiments as described above, the present invention is not particularly limited thereto. .

One side of the liquid crystal panel is placed on the lower stage 9, and the ACF on the liquid crystal panel is
2 is pressurized. ACF sheet 2 fed by a predetermined amount
The adhesive tape portion is cut by the cutter 11 leaving the release paper. Further, the lock chuck 12 as the first holding means can push the release paper 2b downward while holding the release paper 2b.

2 to 4 show an embodiment of the ACF attaching step in the ACF attaching apparatus shown in FIG. The configuration of each unit is drawn in a simplified manner as compared with FIG. FIG.
(A) shows one side of the liquid crystal panel 13 before the ACF2 is attached.
The state where it was mounted on the lower stage 9 is shown. In this figure, the adhesive tape 2a of the ACF sheet 2 is indicated by oblique lines, and the thickness of the release paper 2b is omitted (FIG. 3).
Other figures are the same except for the enlarged view of (c)).

FIG. 2B shows a state in which the ACF sheet 2 has been fed by a predetermined amount. This feed is shown in Figure 2
In the state shown in FIG. 3A, the roller unit 5 is moved in the direction of the arrow x1 with the feed chuck 8 closed and the release paper 2b being held.

FIG. 2C shows a cutting step of the ACF 2. In this step, the cutter 11 has moved from the back side of the apparatus to the position of the ACF 2. Adhesive tape 2a
Is cut by a blade provided on the cutter 11 while being sandwiched between the cut portions 11. Reference numeral 14 denotes a cut portion. Only the adhesive tape 2a is cut by the cutter 11, and the release paper 2b is not cut. After the cutting, the cutter 11 moves to the back side of the apparatus and returns to the original position.

From the state shown in FIG.
4 and the entire unit including the roller unit 5 is indicated by an arrow y.
The ACF 2 descends in one direction, and the ACF 2 is attached to the liquid crystal panel 13. FIG. 2D shows a pressing step of the adhesive tape 2a. The pressure applied to the adhesive tape 2a is performed when the head 10 that has moved down presses the adhesive tape 2a.

At this time, the head 10 presses the area in the supply direction (left direction in FIG. 2D) from the cut portion 14 of the ACF 2. Desirably, the length of the tape 2a matches the length of the tape 2a. After pressing, the head 10 moves up and returns to the original position.

FIG. 3 shows a step subsequent to FIG. 2D, and shows a peeling step of the release paper 2b in the ACF attaching step. FIG. 3A shows a step of loosening the release paper 2b. In order to loosen the release paper 2b, the feed chuck 8 is opened, the lock chuck 12 is closed, and the lock chuck 12 is lowered in the direction of the arrow y2 while the release paper 2b is held by the lock chuck 12. As a result, the release paper 2b between the lock chuck 12 and the lower roller 6 is loosened.

Further, in order to soften the adhesive tape 2a and increase the adhesion to the liquid crystal panel 13, the temperature of the portion where the ACF 2 is attached is raised to 70 to 80 ° C. Therefore, after the pressurization of ACF2 is completed as described above, ACF2
The high temperature part is cooled by performing an air blow on the affixed part. If ionized air is used for air blowing, the release paper 2b can be prevented from being charged with static electricity. Release paper 2
If the charging of b can be prevented, the release paper 2b after peeling can be easily wound up.

FIG. 3B shows a state in which the roller unit 5
The state in which the release paper 2b is peeled off from the adhesive tape 2a is shown. In this figure, the roller unit 5 moves in the direction of the arrow x2 with the feed chuck 8 opened and the lock chuck 12 closed.

In this state, the roller unit 5 integrated with the upper and lower rollers 6, 7 moves in the direction of the arrow x2 while the lock chuck 12 holding the release paper 2b is fixed at a fixed position, so that the release paper 2b is loosened. Gather between the lower roller 6 and the upper roller 7. Due to such a slack, when the ACF 2 is stuck to a relatively soft material, the sinking of the pressing force of the lower roller 6 is absorbed by the slack of the release paper 2b. Will increase the stability.

If the release paper 2b is loosened by lowering the lock chuck 12 with the release paper 2b being held by the lock chuck 12 as described above, the stability of peeling is preferably increased because the release paper 2b is loosened. However, without lowering the lock chuck 12, that is, without causing the release paper 2 b to loosen, the roller unit 5 is moved by the arrow x 2.
The release paper 2b may be peeled by moving in the direction.

FIG. 3 (c) is an enlarged view of a portion A in FIG. 3 (b). The lower roller 6 is in contact with the surface of the release paper 2 b and presses the ACF sheet 2. The upper roller 7 is in contact with the back surface of the release paper 2b. Since the release paper 2b is held by the lock chuck 12, and the adhesive tape 2a is attached to the liquid crystal panel 13, the roller unit 5
Release paper 2b accompanying the movement in the x2 direction
Will be peeled off.

The upper roller 7 is disposed above the lower roller 6, and is disposed in a reverse direction in the traveling direction of the roller unit 5 (the direction of the arrow x2). Therefore, near the contact portion between the lower roller 6 and the release paper 2b, the release paper 2b is inclined by the angle θ. The lower roller 6 and the upper roller 7 are integrated with the roller unit 5 by an arrow x2.
, The angle θ during this movement is constant.

Therefore, by the movement of the roller unit 5, the lower roller 6 presses the ACF sheet 2, the release paper 2b keeps the fixed angle θ, and the release paper 2b
It will be peeled off from. Therefore, the release paper 2b
The force for peeling the release paper 2b against the adhesive force between the adhesive tape 2a and the adhesive tape 2a works steadily, so that the adhesive tape 2a peels from the liquid crystal panel 13 when the release paper 2b is peeled off, Air bubbles can be prevented from entering between the liquid crystal panel 2a and the liquid crystal panel 13, and the release paper 2b can be stably peeled off.

Although the example in which the upper roller 7 is positioned above the lower roller 6 has been described, the present invention is not limited to this, and the upper roller 7 separates the release paper 2b from the lower roller 6. What is necessary is just to arrange | position to the direction side. For example, when the ACF 2 is attached from the lateral side of the liquid crystal panel 13, the upper roller 7 is located on the lateral side with respect to the lower roller 6, and when the ACF 2 is attached from the lower side of the liquid crystal panel 13, the upper roller 7 is attached. Is located below the lower roller 6.

In the above description, the upper roller 7 is arranged in a direction opposite to the lower roller 6 in the traveling direction of the roller unit 5 (in the direction of the arrow x2). May be arranged on the side of the roller unit 5 in the traveling direction.

The release paper 2b has an adhesive tape 2a on the back surface.
When the viscosity remains, it is preferable to apply Teflon (registered trademark) to the upper roller 7.

FIG. 4 shows a step following the step shown in FIG.
This shows a step after the release paper 2b is peeled off. As shown in FIG. 4A, when the advance of the roller unit 5 proceeds and the lower roller 6 passes through the cut portion 14, the peeling is completed. From this state, when the entire unit including the rollers 3 and 4 and the roller unit 5 is raised, as shown in FIG. 4B, only the adhesive tape 2a from which the release paper 2b is peeled is left on the liquid crystal panel 13. It will be glued.

After the peeling is completed, the roller unit 5
As shown in (a) and (b), it moves in the direction of arrow x1 with the feed of ACF2 and returns to the peeling start position. That is, since the return operation of the roller unit 5 and the feeding of the ACF 2 are performed simultaneously, the production efficiency is improved.

After the adhesive tape 2a is adhered to the liquid crystal panel 13 through these steps, the adhesive tape 2a is passed through the TCP temporary press-fitting section 53 and the TCP main press-fitting section 54 as shown in FIG. Is mounted on the liquid crystal panel.

The higher the moving speed of the roller unit 5, the higher the production efficiency is. However, the peeling of the release paper 2b is more stable, the lower the moving speed. For this reason,
The moving speed of the roller unit 5 depends on whether the ACF 2 is fed in the direction of the arrow x1 as shown in FIG. 2A, or the release paper 2 in the direction of the arrow x2 as shown in FIG.
It is preferable that the speed is different from that in the case of b. For example, the moving speed in the direction of the arrow x1 is relatively high,
By setting the moving speed in the direction of the arrow x2 to be slower than this, it is possible to balance the production efficiency and the stability of peeling.

Further, in the above-described embodiment, the example of the ACF has been described. However, the present invention is not limited to this, and the same effect can be obtained with an adhesive tape with release paper. Also, the example in which the mounting target is a liquid crystal panel has been described, but the present invention is not limited to this, and a similar effect can be obtained for a display panel such as a plasma display.

[0047]

As described above, according to the present invention, during the movement of the roller unit when peeling off the release paper, the release paper peeled off from the adhesive tape with release paper is attached near the lower roller. It is possible to maintain a substantially constant angle of inclination with respect to the adhesive tape application surface. Therefore, for this,
It is possible to prevent peeling of the adhesive tape from the liquid crystal panel at the time of peeling of the release paper, and to prevent air bubbles from being mixed between the adhesive tape and the liquid crystal panel, so that the release paper can be peeled stably.

[Brief description of the drawings]

FIG. 1 is a detailed perspective view of an ACF attaching apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing an ACF attaching process according to an embodiment of the present invention.

FIG. 3 is a diagram showing a release process of an ACF release paper according to an embodiment of the present invention.

FIG. 4 is a view showing a process after release of the release paper from the ACF according to the embodiment of the present invention.

FIG. 5 is a perspective view showing an example of an electronic component mounting machine.

FIG. 6 is a diagram showing an example of a conventional ACF attaching process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ACF sticking apparatus 2 ACF 2a Adhesive tape 2b Release paper 3,4 Roller 5 Roller unit 6 Lower roller 7 Upper roller 8 Feed chuck 9 Lower stage 10 Head 11 Cutter 12 Lock chuck 13 Liquid crystal panel 14 Cut part

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masaya Watanabe 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 2H092 GA48 GA51 MA32 NA27 NA29 3F108 JA03 5F044 LL09 PP15

Claims (11)

[Claims] 1. An adhesive tape sticking apparatus for sticking an adhesive tape with release paper supplied on an object to the object and peeling the release paper from the adhesive tape with release paper,
A surface abutting unit that abuts on the surface of the release tape with the release paper attached to the object; and a back surface of the release paper positioned on a side in a direction in which the release paper is separated from the surface abutting unit. Back surface contacting means, and in a state where the positional relationship between the front surface contacting means and the backside contacting means is kept constant, the front surface contacting means and the backside contacting means are attached with the release tape with release paper. And a moving means for moving the pressure-sensitive adhesive to the supply side of the adhesive tape. 2. The rear-surface abutment unit is disposed rearward of the front-surface abutment unit with respect to a moving direction of the front-surface abutment unit and the back-surface abutment unit when the release paper is peeled. The adhesive tape sticking device according to claim 1. 3. The adhesive tape sticking apparatus according to claim 1, wherein the movement of the surface contact means is performed in a state where the surface contact means presses the adhesive tape with release paper. 4. A first holding means for holding the release paper on the discharge side of the peeled release paper when the front contact means and the rear contact means move to the supply side of the adhesive tape with release paper. The adhesive tape sticking apparatus according to any one of claims 1 to 3, further comprising a holding means. 5. The apparatus according to claim 1, wherein the front contact means and the rear contact means are integrally formed as a peeling unit, and the peeling unit is moved to the supply side of the release tape with release paper by the moving means. 4. The adhesive tape sticking apparatus according to any one of 4. 6. The peeling unit further comprises a second holding means for holding the release paper, and after releasing the release paper from the adhesive tape with release paper attached to the mounting object, When the holding state of the first holding means is released and the release paper is held by the second holding means, the peeling unit is moved in a direction in which the release paper is discharged. The adhesive tape sticking apparatus according to claim 5, wherein the tape is drawn out and supplied onto the mounting object. 7. The release paper is relaxed by moving the first holding means to the supply side of the adhesive tape with release paper in a state where the release paper is held by the first holding means. The release paper is peeled from the adhesive tape with release paper attached to the mounting object by moving the peeling unit to the supply side of the adhesive tape with release paper in a state where the release paper is inserted. Adhesive tape sticking device. 8. After the adhesive tape with release paper supplied on the object is attached to the object, the portion where the adhesive tape with release paper is attached is applied using ionized air. The pressure-sensitive adhesive tape applying device according to any one of claims 1 to 7, wherein air blowing is performed. 9. The apparatus according to claim 1, wherein each of the front contact means and the rear contact means is formed using a roller.
The adhesive tape sticking apparatus according to any one of the above. 10. A component mounting machine using the pressure-sensitive adhesive tape applying device according to any one of claims 1 to 9, wherein the mounted component is mounted on the pressure-sensitive adhesive tape adhered to an object by the pressure-sensitive adhesive tape applying device. A component mounting machine characterized by being fixed. 11. A display panel, wherein mounted components are fixed using the component mounter according to claim 10.