JP2002154743A - Device for peeling seal material such as protective film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the working time, and to improve the yield of production of products by automatically peeling a seal material such as a protective film attached to a surface of the products. SOLUTION: This device for peeling a seal material such as a protective film 53 attached to a surface of a product is provided with a squeegee 4 facing to the protective film 53 attached to the product and to be moved in the vertical direction and the right and left direction, a tape reel 1 for delivering an adhesive tape A between the squeegee 4 and a surface of the protective film 53, and plural guide rollers 2a, 2b, 2c, 2d, 5a and 5b arranged in the downstream of the tape reel 1 and for guiding the adhesive tape A to a wind-up side. After applying the adhesive tape A to the surface of the protective film 53, the adhesive tape A is slowly peeled from the surface of the product with the movement of the guide roller 5b, and thereafter, the protective film 53 is peeled at a high speed with the high-speed operation of the guide roller 5b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for peeling off a sealing material such as a protective film capable of automatically peeling off a thin protective film for protecting the exterior of a product.

[0002]

2. Description of the Related Art In the field of various products, when a product is delivered to a destination, a thin protective film is generally attached to the surface of the product so that the surface of the product is not damaged. For example, a liquid crystal display module used as a display panel of a mobile phone or the like also has such a protective film, and an example is shown in FIG.

As shown in FIG. 4A, a glass plate on which common and segment electrode patterns are formed is laminated, and a liquid crystal display panel 51 in which liquid crystal is enclosed is similarly formed with an electrode pattern and an IC. A liquid crystal display module is configured by connecting a flexible substrate 52 on which a driver and the like are mounted. On the back surface of the liquid crystal display panel 51, a thin protective film 53 made of resin is attached. Such a liquid crystal display module is shown in FIG.
The liquid crystal display panel 51 is set on a holder 54 to which a backlight can be attached as shown in FIG.
The liquid crystal display panel 51 is adhered and fixed by a double-sided adhesive tape 54 a provided in a frame shape on the bottom surface of the liquid crystal display panel 4. In this fixing, a step of peeling the protective film 53 from the back surface of the liquid crystal display panel 51 is performed.

[0004]

However, the process of peeling off the protective film 53 from the liquid crystal display panel 51 is currently performed by an operator using tweezers or the like. In this case, since the protective film 53 is very thin, it takes time for the worker to peel off the film with tweezers, which greatly affects the product yield.

As described above, since the work of peeling off the protective film 53 is manually performed, there is a limit in improving the productivity of a product using the liquid crystal display module. This applies not only to the field of the liquid crystal display module in the illustrated example, but also to various other products.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to automatically remove and remove a sealing material such as a protective film attached to the surface of a product, thereby shortening the working time and improving the production yield of the product. And

[0007]

SUMMARY OF THE INVENTION The present invention relates to a peeling device for peeling off a sealing material such as a protective film attached to a surface of a product, wherein the device faces the sealing material attached to the product. A squeegee that can be moved up, down, left and right, a tape reel that feeds an adhesive tape between the squeegee and the surface of the sealing material of the product, and a guide that is disposed downstream of the tape reel and guides the adhesive tape to a winding side. A plurality of guide rollers, and after the pressure-sensitive adhesive tape is pressed against the surface of the sealing material by the squeegee, the adhesive roller is peeled off from the surface of the product together with the sealing material at a low speed by the movement of the guide roller, Thereafter, the sealing material is peeled off at a high speed by a high-speed movement of the guide roller.

According to the present invention, a sealing material such as a protective film attached to the surface of a product can be automatically peeled and removed, thereby shortening the working time and improving the production yield of the product.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a peeling device for peeling off a sealing material such as a protective film attached to the surface of a product, wherein the sealing material attached to the product is A squeegee capable of moving vertically and horizontally facing each other, a tape reel for feeding an adhesive tape between the squeegee and the surface of the sealing material of the product, and winding the adhesive tape disposed downstream of the tape reel A plurality of guide rollers for guiding to the side, and after the pressure-sensitive adhesive tape is pressed against the surface of the seal material by the squeegee, the guide roller moves the adhesive tape from the surface of the product together with the seal material at a low speed. A seal such as a protective film, wherein the seal is peeled off at a high speed by a high-speed movement of a guide roller. When peeling off the sealing material from the surface to which the product is attached, the edge on the peeling start side of the sealing material is slowly operated so that the adhesive tape does not peel off from the sealing material. Has the effect that it can be peeled off from the mounting surface.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 (a) and 1 (b) to 3 (a),
(B) shows the peeling step of the protective film by the peeling device of the present invention in order. In the present embodiment, a description will be given as a step of peeling the protective film 53 from the liquid crystal display panel 51 shown in the conventional example.

As shown in FIG. 1A, the peeling device comprises:
A tape reel 1 around which an adhesive tape A is wound, and four guide rollers 2 for guiding the adhesive tape A fed from the tape reel 1 to a take-up reel (not shown)
a, 2b, 2c, 2d and a peeling head 3. Tape reel 1 and three guide rollers 2a, 2
b and 2d are fixed at fixed positions, and are respectively rotated by the rotation drive of the take-up reel. Only the guide roller 2c can change its position.

The peeling head 3 has a frame 3a which can be moved up, down, left and right in the figure. And
A squeegee 4 is provided on the frame 3a so as to be driven up, down, left, and right.

The vertical and horizontal movement of the frame 3a and the vertical and horizontal movements of the squeegee 4 are configured to be linked to each other. At the initial position, as shown in FIG. The upper end is set to abut the left end of the lower surface of the liquid crystal display panel 51. Then, the adhesive tape A wound on the tape reel 1 goes around the guide roller 2a, the guide roller 5a, the squeegee 4, the guide roller 5b, the guide roller 2b, the guide roller 2c, and the guide roller 2d in this order on the take-up reel. Draws a path to be wound. On the other hand, the liquid crystal display panel 51 is held in a horizontal position by a jig (not shown), and is set in a position in which the protective film 53 on the back surface faces the peeling head 3.

In the above configuration, the step of peeling the protective film 53 by the peeling head 3 is performed in the following order.

First, as shown in FIG. 1A, the upper end of the squeegee 4 is set so as to abut the lower surface of the left end of the liquid crystal display panel 51. Thereby, the adhesive tape A covering the upper end of the squeegee 4 is pressed against the lower surface of the protective film 53. By moving the squeegee 4 to the right while keeping the same level as shown in FIG.
The adhesive tape A is attached to the entire protective film 53. At this time, the feeding of the adhesive tape A from the tape reel 1 stops.

Next, as shown in FIG.
At the same time as lowering the frame 3a from the position (b), the squeegee 4 that has moved to the right is returned to the left.
At this stage, the protective film 53 does not peel off only because the pressure applied to the adhesive tape A by the squeegee 4 is lost. Then, the frame 3a is moved to the left at a low speed as shown in FIG. At this time, the guide roller 5b
Also moves to the left and guide rollers 2
c is displaced diagonally to the upper left. Since the guide roller 5b moves to the left at a low speed, the adhesive tape A between the guide roller 5b and the right end of the protective film 53 also gently moves to the left, and the right end of the protective film 53 moves from the back of the liquid crystal display panel 51. Peeled off slowly. That is, since the guide roller 5b slowly pushes down the adhesive tape A, the protective film 53 can be peeled from the back surface of the liquid crystal display panel 51 without weakening the adhesive strength of the adhesive tape A to the protective film 53. . In other words, when the right end of the protective film 53 is peeled off from the back surface of the liquid crystal display panel 51, the entire protective film 53 is adhered to the liquid crystal display panel 51. Panel 5
1 requires the most force to peel it from the back. Therefore, if the guide roller 5b is moved to the left at a low speed, the space between the adhesive tape A and the protective film 53 can be slowly peeled off. If the guide roller 5
When b is moved to the left at a high speed at a stretch, the adhesive tape A peels off from the left end of the protective film 53, and the protective film 53 remains attached to the liquid crystal display panel.

In the state shown in FIG. 2B, since the right end side of the protective film 53 is already separated from the back surface of the liquid crystal display panel 51, the protective film 53 easily follows the movement of the adhesive tape A. Therefore, after this point, as shown in FIG. 3A, even if the frame 3a is moved to the left at a high speed, the protection film 53 is kept on the liquid crystal display panel 51.
Can be peeled off at a stretch from the back surface. In the peeling step, the guide roller 2c is displaced further to the upper left than the position shown in FIG. Then, when the entire protective film 53 is peeled off from the back surface of the liquid crystal display panel 51, as shown in FIG.
By returning c to the original position in FIG. 2A, a path in which the adhesive tape A is put on the upper end of the squeegee 4 can be obtained. Therefore, the adhesive tape A
, The protective film 53 peeled off from the liquid crystal display panel 51 is conveyed downstream via the guide roller 5b.

As described above, in the initial stage of the application of the adhesive tape A to the protective film 53 by the squeegee 4 and the peeling, the guide roller 5b slowly moves to the left to move the protective film 53 to the back of the liquid crystal display panel 51. Can be reliably peeled off. After the initial peeling, the guide film 5b is moved to the left at a high speed, so that the protective film 53 can be peeled off from the back surface of the liquid crystal display panel 51 at a stretch. Therefore, in contrast to the conventional manual peeling of the protective film 53, the operation for peeling the protective film 53 can be automated and the operation time can be shortened, and the production yield can be greatly improved. it can.

In the above embodiment, the peeling of the protective film 53 attached to the liquid crystal display panel 51 has been described. However, the present invention can be applied to a protective film attached to various other products. Of course.

[0021]

According to the present invention, when the sealing material such as a protective film is peeled off from the surface to which the sealing material is adhered, the edge of the sealing material on the peeling start side is operated slowly so that the adhesive tape does not peel off from the sealing material. Therefore, the edge can be reliably peeled off from the mounting surface. After the peeling, the sealing material can be peeled off from the surface to which the sealing material is applied at a stretch at a high speed. Therefore, the peeling of the sealing material such as a protective film can be fully automated compared to the conventional case where the sealing material such as a protective film is peeled off by hand, so that the working time can be shortened and the product yield can be greatly improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a peeling device according to the present invention, in which (a) shows a state in which a squeegee is abutted against a lower surface at the left end of a liquid crystal display panel, and (b) shows a state in which the squeegee is moved to the right and an adhesive tape is used. Figure showing the state of sticking to the protective film

FIG. 2 is a schematic view showing a step following FIG. 1, wherein (a) shows a state in which the squeegee is lowered, and (b) moves the guide roller to the left at a low speed to display the edge of the protective film on a liquid crystal display. Figure showing the panel peeled off from the back

FIG. 3 is a schematic view showing a step following FIG. 2, wherein (a) shows a state in which the guide roller is moved to the left at a high speed to peel off the protective film from the back surface of the liquid crystal display panel; Figure showing the state in which the peeling of the protective film is completed and transported

FIG. 4A is a perspective view of a liquid crystal display module in which a protective film is attached to the rear surface of a liquid crystal display panel, viewed from the rear side. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tape reel 2a, 2b, 2c, 2d Guide roller 3 Peeling head 3a Frame 4 Squeegee 5a, 5b Guide roller 51 Liquid crystal display panel 52 Flexible board 53 Protective film (seal material) 54 Holder 54a Double-sided adhesive tape A Adhesive tape

Claims (1)

[Claims] 1. A squeegee for peeling off a sealing material such as a protective film attached to a surface of a product, wherein the squeegee is movable up, down, left and right to face the sealing material attached to the product. A tape reel that feeds an adhesive tape between the surface of the sealing material of the squeegee and the product, and a plurality of guide rollers that are arranged downstream of the tape reel and guide the adhesive tape to a winding side. After the pressure-sensitive adhesive tape is pressed against the surface of the sealing material by the squeegee, the pressure-sensitive adhesive tape is peeled off from the surface of the product together with the sealing material at a low speed by the movement of the guide roller. A peeling device for a sealing material such as a protective film, wherein the sealing material is peeled off at a high speed.