JP2013133178A - Film peeling device for display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convert even a broken thin display panel into a high-quality recycling material by efficiently peeling films from a thin display panel to which various films are adhered via a pressure-sensitive adhesive, in order to classify the thin display panel into each material.SOLUTION: The film peeling device for peeling a film 2 from a display panel 1 to which the film 2 has been adhered via a pressure-sensitive adhesive includes a driving base 3 on which the display panel 1 with the film 2 adhered thereto is mounted, a pulling driving part 4 for gripping the film to pull it, and a glass separation stage 5 installed in parallel to the driving base 3 leaving a gap through which the film 2 passes.

Description

  The present invention relates to a film peeling apparatus for a display panel for peeling a film attached to a thin display panel.

  In recent years, awareness of the global environment has been increasing. In particular, in Japan, recycling laws are enforced, and recycling is actively conducted. In recycling, it is an important issue to make various members and materials of products into a form that can be reused at low cost and efficiently. Here, the reusable form is to obtain each member and each material from a product composed of various members. It is also desired that each member and the like can be recovered as efficiently as possible and as a high-quality recycled material.

  One example in which it is difficult to obtain individual members is glass used for display panels. Polyethylene terephthalate is laminated on the panel surface of displays such as CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), and PDP (Plasma Display Panel) for various purposes such as reflection and scattering prevention. A film is often attached. These films are affixed to the panel surface with various adhesives suitable for their respective roles.

  Therefore, in order to collect the glass of the display panel as a recycled material, the film strongly adhered with an adhesive must be peeled off. For example, when a display panel with a film attached is dissolved as it is, the film component becomes an impurity, and the quality of the glass deteriorates.

  Thus, for example, Patent Document 1 discloses a film peeling method for peeling a display panel by fixing a film end face to a roller adjacent to or in contact with the display panel surface and rotating the roller.

JP 2004-134285 A

  However, in thin display panels such as LCDs and PDPs, there is a crack in the panel glass. Therefore, in the method of Patent Document 1, the broken glass is wound together when the film is peeled off. In this case, there is a risk that the thickness of the broken glass is added to the thickness of the rotating shaft and the rotation stops halfway. Moreover, the film which has not been peeled off from the broken glass cannot be recycled and will be discarded.

  In addition, in thin display panels gathered at recycling factories, the ratio of broken panel glass has risen to half. In this state, half of the collected panel glass will be disposed of.

  Therefore, the present invention solves the above-mentioned problems, efficiently peels the film from the thin display panel on which various films are pasted, and recovers it as a high-quality recycled material even if it is a broken display panel The purpose is to provide.

  In order to achieve the above object, a film peeling apparatus of the present invention includes a first stage on which a mounting surface on which a display panel on which a film is attached is mounted is formed, and a predetermined distance from the first stage. The second stage on which the mounting surface on which the display panel moved from the first stage is placed is formed, and the back side of the surface on which the placement surface is formed on the first stage And a tension driving unit that fixes the end of the film and pulls the film in the direction of peeling from the display panel. The tensile driving unit pulls the film to peel the film from the display panel and to remove the display panel from the first display panel. Self-run from the stage to the second stage.

  Further, it is desirable that the first stage and the second stage are separated from each other by an interval through which only the film can pass and are installed at substantially the same height.

  Moreover, when a film and a display panel are peeled, the heating part which heats the adhesion surface of a display panel and a film is provided.

  According to the film peeling apparatus of the present invention, regardless of the type of the adhesive of the film, even if the display panel is cracked, the film is efficiently peeled from the display panel to which the film is adhered, and as a high-quality recycled material It can be recovered.

The side view which shows the example of 1 structure of the film peeling apparatus which concerns on Embodiment 1 of this invention. The side view which expanded the tension drive part 4 vicinity which concerns on Embodiment 1 of this invention. The figure which shows an example after the film peeling in the film peeling apparatus which concerns on Embodiment 1 of this invention The side view which shows the example of 1 structure of the film peeling apparatus which concerns on Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a side view showing a configuration example of a film peeling apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the film peeling apparatus 7 of the present invention includes a driving table 3 that is a first stage on which a mounting surface on which the display panel 1 is placed is formed, and the display panel 1 from which the film 2 is peeled off. The glass separation stage 5 is a second stage on which a placement surface to be placed is formed. As shown in FIG. 1, the drive base 3 and the glass separation stage 5 are installed at a predetermined interval at substantially the same height.

  The drive base 3 has a tension drive unit 4 that pulls in a predetermined direction with the tip of the film 2 attached to the display panel 1 fixed.

  Next, the film peeling apparatus according to the present embodiment will be described with reference to FIGS.

  A PDP device or the like collected from the market or the like is disassembled into a casing, a circuit board, a display panel to which a film is attached, and the like through a predetermined recycling process. The display panel to which the film is attached proceeds to a process of separating the film and the display panel.

  First, the display panel 1 on which the film 2 is attached on the drive base 3 with an adhesive or the like is placed with the surface on which the film 2 is attached facing down. The film 2 attached to the display panel 1 is peeled off by a worker with a scraper or the like about several centimeters on the glass separation stage 5 side. The end of the peeled film 2 is fixed to the tension driving unit 4 using a tape or the like.

  In addition, since the method of peeling the edge part of the film 2 and fixing the edge part of the film 2 to the tension drive part 4 is not the essence of this invention, it is not limited to the said method. The film may be peeled by other than the scraper, or the tension driving unit 4 may have a mechanism for gripping the film 2.

  Here, FIG. 2 shows an enlarged view of the vicinity of the tension drive unit 4. As shown in FIG. 2, the peeled film 2 is inserted between the drive base 3 and the glass separation stage 5 and fixed to the tension drive unit 4. The drive base 3 and the glass separation stage 5 are installed with an interval equal to or larger than the width of the film 2. The interval is preferably an interval through which only the film 2 can pass.

  Next, the tension drive unit 4 drives the film 2 so as to pull it in the direction of peeling the film 2 from the display panel 1. In the case of the present embodiment, the tension driving unit 4 is tension driven in the direction of the arrow 10 and the arrow 11 in order from the position A to the position C via the position B. The film 2 is peeled off from the display panel 1 as the pulling drive unit 4 is moved in the directions of the arrows 10 and 11, and the display panel 1 runs on the glass separation stage 5 side accordingly.

  In FIG. 3, an example after the film peeling in the film peeling apparatus of this invention is shown. FIG. 3 shows a case where the tension driving unit 4 is located at the position C. As shown in FIG. 3, the film 2 is peeled off from the display panel 1 while being fixed to the tension driving unit 4. At this time, the film 2 can be easily recovered by removing the film 2 fixed to the tension driving unit 4 from the tension driving unit 4. After the film 2 is collected, the tension driving unit 4 is driven to the position A.

  The display panel 1 is self-propelled from the driving table 3 and placed on the glass separation stage 5. Thereafter, the display panel 1 on the glass separation stage 5 proceeds to a display panel recycling process.

  Here, the case where the film 2 is peeled from the display panel 1 that has been broken is considered. When the glass crack has generate | occur | produced in a part of the display panel 1, the case where the film 2 peels from the display panel 1 in the state by which the broken glass was affixed arises.

  In the present embodiment, as shown in FIG. 2, the drive base 3 and the glass separation stage 5 are separated from each other by an interval through which only the film 2 can pass. By setting the film 2 in this way, the broken glass is scraped from the film 2 by the driving table 3 and the glass separation stage 5 when passing through the gap. The cracked glass that has been scraped away runs on the glass separation stage 5 as it is. Therefore, the display panel 1 containing broken glass remains on the glass separation stage 5.

  As described above, according to the present embodiment, it is possible to separate the attached film and the display panel without causing the glass to be peeled off together with the film.

  In the present embodiment, the tension driving unit 4 is tension driven in the direction shown in FIG. 1, but is not limited to this direction. As long as the film and the display panel are peeled off, for example, the film may be pulled toward the position immediately below the position A and then pulled toward the position B.

(Embodiment 2)
The film peeling apparatus of the present embodiment is obtained by adding a thermal heater as a heating unit to the first embodiment.

  FIG. 4 is a side view showing a configuration example of the film peeling apparatus 8 according to the present embodiment. In FIG. 4, the same components as those of the film peeling apparatus 7 of FIG. As shown in FIG. 4, the heating heater 6 is installed between the drive base 3 and the glass separation stage 5, that is, at a position where the adhesion portion between the film 2 and the display panel 1 is heated.

  In the film peeling apparatus 8 of the present embodiment, the thermal heater 6 is installed to weaken the adhesive force of the adhesive that bonds the film 2 and the display panel 1, so that the film 2 is easier to peel from the display panel 1. Become. That is, it is possible to reduce the driving force of the tension driving unit 4.

  In the present embodiment, a thermal heater is used as the heating unit, but the present invention is not limited to this. What is necessary is just to be able to overheat the adhesion part of the film 2 and the display panel 1.

  Moreover, in each embodiment, although demonstrated only about the case where the film 2 was adhere | attached on the single side | surface of the display panel 1, when the film is adhere | attached on both surfaces of the display panel 1, the film of one side is peeled. Then, the film on both sides can be peeled off by performing the same operation on the other side.

  In addition, the present invention is not limited to each embodiment, and can be applied not only to display panels such as LCDs and PDPs but also to peeling films attached to automobile glass.

  The film peeling method and the film peeling apparatus according to the present invention can adhere a film because the film can be efficiently peeled from the glass panel to which the film is adhered, regardless of the type of the adhesive of the film. It is effective in the field of reusing recycled glass panels.

DESCRIPTION OF SYMBOLS 1 Display panel 2 Film 3 Drive stand 4 Tensile drive part 5 Glass separation stage 6 Thermal heater 7, 8 Film peeling apparatus

Claims (3)

A first stage on which a mounting surface on which a display panel with a film attached is mounted;
A second stage provided with a mounting surface on which the display panel mounted on the display panel and moved from the first stage is installed at a predetermined interval from the first stage;
A tension drive unit disposed on the back side of the surface on which the placement surface is formed in the first stage, fixing an end of the film, and pulling in a direction of peeling from the display panel;
A film peeling apparatus for a display panel, in which the pulling drive unit pulls the film to peel the film from the display panel and to cause the display panel to self-run from the first stage to the second stage. 2. The display panel film peeling apparatus according to claim 1, wherein the first stage and the second stage are separated from each other by an interval through which only the film can pass, and are installed at substantially the same height. The display panel film peeling apparatus according to claim 1, further comprising a heating unit that heats an adhesive surface between the display panel and the film when the film and the display panel are peeled off.