JPH09306360A - Method and device for bonding film to cathode ray tube panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for bonding film to a cathode ray tube panel capable of preventing dropping down of an adhesive without using a masking tape and capable of reusing the adhesive collected. SOLUTION: A bonding head 4 is moved to a direction of arrow mark along from a minor side to a major side of a panel face 3, so as to fix a film 1 to a surface of the panel face 3 through an adhesive 2 by a rubber roller 6. Here, the adhesive 2 is protruded from a Y-axis end edge part of the film 1, tending to sag to a Y-axis end skirt part of the panel face 3, but the protruded bonding agent 2 is sucked by suction force of a vacuum pump 12 through a pipe 9, a closed tank 10 and a pipe 11 with a suction part 8 moved with the rubber roller 6, thereby the protruded adhesive 2 is collected in the closed tank 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for sticking a film to a cathode ray tube panel, and more specifically, it sticks out when a functional film is stuck to a panel face portion of the cathode ray tube panel with an adhesive. The present invention relates to a method and an apparatus for removing an adhesive.

[0002]

2. Description of the Related Art In recent years, in the field of display such as a cathode ray tube, film lamination on the panel face surface of a cathode ray tube panel has been widely used as the performance of the film has been improved. In many cases, a hard coat layer, a conductive film layer, a low reflection layer, an antifouling coat layer, etc. are applied to this type of film, and the adhesive used for the attachment is an acrylic adhesive or UV curing. Resin etc. are used. In order to attach the functional film having such various layers, first, an adhesive is applied to the surface of the cathode ray tube panel, and then the film is attached by pressing it with a rubber roller.

In this case, there is a problem in that the adhesive is spilled out and spilled out from the edge of the film at the time of attachment, and the outer peripheral portions such as the HS band and the funnel of the cathode ray tube are soiled with the adhesive. In particular, such a phenomenon is likely to occur when the bonding is performed using an adhesive made of an ultraviolet curable resin. When the adhesive enters the gap between the skirt portion of the cathode ray tube panel and the HS band, it is difficult for ultraviolet rays to enter, and the adhesive may exude later. In order to prevent this, conventionally, a wide adhesive polyester tape is attached to the outer peripheral portion of the cathode ray tube panel for masking to prevent the panel skirt portion and the HS band gap and the outer peripheral portions of the HS band and the funnel from being contaminated. ing.

[0004]

As described above, the method of attaching the adhesive polyester tape to the outer periphery of the cathode ray tube panel has the following problems. (1) Since it is necessary to mask the entire outer peripheral portion of the cathode ray tube panel with a polyester tape, it is difficult to make it into a device, which increases the amount of capital investment. (2) Since it depends on human labor, labor costs are high. (3) The material cost of the polyester tape is high. (4) The spilled adhesive cannot be reused and the material is wasted. The present invention has solved all of the above problems, can prevent the spill of the adhesive without using a masking tape,
Moreover, it is an object of the present invention to provide a method for attaching a film to a cathode ray tube panel in which the adhesive is recovered and can be reused.

[0005]

In order to achieve the above object, the present invention relates to a film sticking to a cathode ray tube panel in which a functional film is stuck to a panel face surface of the cathode ray tube panel via an adhesive agent by a rubber roller. The method is characterized in that, when the film is attached, the adhesive protruding from the edge of the film is sucked by a suction force of a vacuum pump, and the sucked adhesive is stored in a closed tank. Further, the present invention is a method for sticking a film to a cathode ray tube panel, which comprises sticking a functional film to a panel face surface of the cathode ray tube panel by means of an adhesive with a rubber roller, wherein the end of the film is stuck at the time of sticking the film. The adhesive protruding from the edge portion is received by a trough-shaped receiving member, the received adhesive is sucked by the suction force of a vacuum pump, and the sucked adhesive is stored in a closed tank.

Further, the present invention is a cathode ray tube for sticking a functional film on the panel face surface of a cathode ray tube panel via an adhesive by moving a rubber roller arranged in parallel with the Y axis of the panel face in the X axis direction. A film sticking device for a tube panel, comprising a sticking head for supporting the rubber roller, a moving means for moving the sticking head in the X-axis direction of the panel face, and a sticking head for supporting a moving direction of the rubber roller. And a suction port arranged on both sides of the rear part so as to contact the Y-axis end of the panel face, a closed tank connected to the suction port, and a vacuum pump connected to the closed tank. Characterize. Further, the present invention is a film sticking apparatus for sticking a functional film onto a panel face surface of a cathode ray tube panel by means of an adhesive with a rubber roller, which corresponds to the X-axis end of the panel face. A receiving member having a length and capable of accommodating an adhesive material protruding from the X-axis end, a reciprocating drive means for reciprocating the receiving member in a direction of approaching and separating from the X-axis end of the panel face, and the receiving member. It is characterized by comprising a connected closed tank and a vacuum pump connected to the closed tank.

In the present invention, when an adhesive is applied to the surface of the panel face of the cathode ray tube panel and a functional film is attached thereto with a rubber roller, the adhesive protruding from the end of the film is removed by a vacuum pump. Aspirate and collect in a closed tank. As a result, the spilled-out adhesive is prevented from spilling, so that masking, which has been indispensable in the past, is unnecessary, and the recovered adhesive can be reused.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method and an apparatus according to the present invention will be described based on the embodiments shown in the drawings. FIG. 5 is a view of the panel face 3 of the cathode ray tube panel having the film 1 attached to the surface as seen from the front side. The panel face 3 has a rectangular shape, and the edge portion of the long side (side along the X-axis direction) is shown. To Y
The edge of the shaft end 3y and the short side (side along the Y-axis direction) is referred to as the X-axis end 3x. FIG. 1 and FIG. 2 show a first embodiment of the present invention, which is a film sticking provided with a suction port 8 for sucking the adhesive 2 from the Y-axis end 3y when the film 1 is stuck on the panel face 3. An example of the device is shown. An adhesive agent 2 such as an ultraviolet curable resin is applied on the panel face 3 of the cathode ray tube panel, and the functionalized film 1 is applied thereon by the rubber roller 6 of the application head 4. The rubber roller 6 has a length corresponding to the short side direction of the panel face 3, and both ends of the rubber roller 6 are rotatably supported by an arm 402 vertically extending from the sticking head 4. The rubber roller 6 is arranged in parallel with the short side of the panel face 3 by the sticking head 4 and moved along the long side.

Further, the pasting head 4 is provided with two suction ports 8 via an arm 404. Each mouthpiece 8
Are located on the rear side in the moving direction at both ends in the longitudinal direction of the rubber roller 6 and at the edges 1 of both Y-axis ends 3y of the panel face 3.
It is arranged so as to contact directly below y. The suction port 8 is connected to a sealed tank 10 for storing an adhesive agent via a pipe 9, and a vacuum pump 12 is connected to the sealed tank 10 via a pipe 11.

According to the first embodiment, the rubber head is moved by moving the sticking head 4 in the direction of the arrow from the short side to the long side of the panel face 3 by a conventionally known moving means. The film 1 is attached to the surface of the panel face 3 by the adhesive 6 via the adhesive 2.
At this time, the adhesive 2 protrudes from the Y-axis end edge portion 1y of the film 1 and tries to hang down to the skirt portion of the Y-axis end 3y of the panel face 3, but the protruding adhesive 2 moves along with the rubber roller 6. Pipe 8 from section 8 and closed tank 1
The adhesive 2 that is sucked out by the suction force of the vacuum pump 12 through the pipe 0 and the pipe 11 and sticks out is collected in the closed tank 10. Therefore, spillage to the skirt portion of the panel face 3 is eliminated, masking of the polyester tape is not required, and the material cost, equipment cost, and labor cost are reduced accordingly. Further, the adhesive 2a stored in the closed tank 10 can be reused after being filtered when a certain amount is stored.

As described above, according to the first embodiment,
At the same time when the film 1 is attached by the rubber roller 8,
The adhesive protruding from the Y-axis end edge portion 1y of the film 1 on the Y-axis end 3y of the panel face 3 is sucked by the vacuum pump 12 through the suction port portion 8 and collected in the closed tank 12. Therefore, at the Y-axis end 3y of the panel face 3, it is not necessary to mask the polyester tape, and the collected adhesive can be reused.

FIG. 3 shows a second embodiment of the present invention, which receives the adhesive 2 that protrudes from the X-axis edge 1x, which is the final end when the film 1 is pasted on the panel face 3. The example of the film sticking apparatus which provided the member in the X-axis edge 3x is shown. To the piston rod 14 of the air cylinder 13, a trough-shaped receiving member 15 having a length over the entire length of the X-axis end 3x of the panel face 3 is attached.
5 is pressed on the X-axis end 3x side of the panel face 3 and immediately below the X-axis edge portion 1x of the film 1 after the attachment is completed.

The receiving member 15 has a pipe 9 and a closed tank 1.
A vacuum pump 12 is connected via 0 and a pipe 11. When the film 1 is pasted on the panel face 3 by the rubber roller 6, the adhesive 2 protrudes from the final pasting end of the film 1 and tries to hang down to the X-axis end 3x, but it is received by the receiving member 15 and falls down. To be prevented. The adhesive received by the receiving member 15 is sucked by the vacuum pump 12 to be collected in the closed tank 12.

As described above, according to the second embodiment,
Panel face 3 at the final end of the film 1 attachment
The adhesive protruding from the edge portion of the film 1 at the X-axis end 3x is received by the receiving member 15, and the adhesive accumulated in the receiving member 15 is sucked by the vacuum pump 12 and stored in the closed tank 10. Therefore, the panel face 3
Even at the X-axis end 3x, the polyester tape does not need to be masked, and the recovered adhesive can be reused.

FIG. 4 shows a third embodiment of the present invention. Instead of the receiving member 15 of the second embodiment, a suction port 16 having a length over the entire length of the panel face 3 is provided as a piston of the air cylinder 13. The film is attached to the rod 14, and the suction port 16 is exposed immediately below the X-axis edge 1x of the film 1. The adhesive 2 squeezes out from the final end of the film 1 attached, and tries to hang down to the skirt of the X-axis end 3x.
The adhesive 2 that has overflowed is collected in the closed tank 10 through the suction port 16.

As described above, according to the third embodiment,
Panel face 3 at the final end of the film 1 attachment
The adhesive protruding from the edge of the film 1 at the X-axis end 3x is sucked by the vacuum pump 12 through the suction port 16 and collected in the closed tank 10. Therefore, the masking of the polyester tape is not necessary even at the X-axis end 3x of the panel face 3, and the protruding adhesive can be reused.

In the first embodiment, the sticking head 4 is provided with the suction port 8 so that it can be moved along with the sticking head 4 along the Y-axis end 3y. The receiving member 15 as in the above embodiment may be pressed by the air cylinder 13, or the fixed suction portion 16 may be provided over the entire length of the Y-axis end 3y as in the third embodiment. Good. A motor, a link mechanism or the like may be used as the reciprocating driving means of the receiving member 15 or the suction port portion 16 in the second and third embodiments, and is not limited to the air cylinder 13 as described above.

[0018]

As described in detail above, according to the present invention,
The vacuum pump absorbs the adhesive that sticks out of the film, so there is no spillage on the skirt of the panel face, which eliminates the need to mask the polyester tape, saving material costs, equipment costs, and personnel costs. At the same time, the protruding adhesive can be collected in a closed tank, and the collected adhesive can be reused.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a vertical cross-sectional side view showing a second embodiment of the present invention.

FIG. 4 is a vertical sectional side view showing a third embodiment of the present invention.

FIG. 5 is a front view of a panel face to which a film is attached.

[Explanation of symbols]

1 ... Film, 2 ... Adhesive, 3 ... Panel face, 3x ... X-axis end, 3y ... Y-axis end, 4 ... Sticking head, 6 ... Rubber roller, 8 ... Suction part, 10 ... ... closed tank, 12 ... vacuum pump, 13 ... air cylinder (reciprocating drive means), 15 ... receiving member, 16 ... suction part.

Claims (6)

[Claims] 1. A method for sticking a film to a cathode ray tube panel, wherein a functional film is pressed against a panel face surface of the cathode ray tube panel with an adhesive to stick the film to a cathode ray tube panel, and the edge of the film is stuck when the film is stuck. A method for attaching a film to a cathode ray tube panel, characterized in that the adhesive that sticks out of the portion is sucked by the suction force of a vacuum pump, and the sucked adhesive is stored in a closed tank. 2. A method for sticking a film to a cathode ray tube panel, which comprises sticking a functional film to a panel face surface of the cathode ray tube panel by means of an adhesive with a rubber roller, wherein an edge of the film is attached when the film is stuck. The gutter-shaped receiving member receives the adhesive that sticks out of the section, the absorbed adhesive is absorbed by the suction force of the vacuum pump, and the absorbed adhesive is stored in a closed tank. How to attach a film to a tube panel. 3. The cathode ray tube panel according to claim 1, wherein a suction port of a vacuum pump that sucks the adhesive is moved together with the rubber roller along a position just below a film edge of a Y-axis end of the panel face. Film sticking method. 4. The method of attaching a film to a cathode ray tube panel according to claim 2, wherein the receiving member is pressed against the X-axis end of the panel face by a reciprocating driving means. 5. A functional film is adhered to the surface of a panel face of a cathode ray tube panel via an adhesive, and Y of the panel face is used.
A film sticking device for a cathode ray tube panel, wherein a rubber roller arranged parallel to an axis is moved in the X-axis direction for sticking, the sticking head supporting the rubber roller, and the sticking head in the X-axis direction of the panel face. Moving means for moving, a suction portion supported by the sticking head, arranged on both sides of the rear portion in the moving direction of the rubber roller, and in contact with the Y-axis end of the panel face, and connected to the suction portion. A film sticking device for a cathode ray tube panel, comprising: a closed tank; and a vacuum pump connected to the closed tank. 6. A film sticking device for a cathode ray tube panel, wherein a functional film is pressed against a panel face surface of the cathode ray tube panel with an adhesive agent to stick the film to a cathode ray tube panel, and has a length corresponding to the X-axis end of the panel face. And a reciprocating drive means for reciprocating the reciprocating member in a direction in which the receptive member separates from and approaches the X-axis end of the panel face, and is connected to the receptive member. And a vacuum pump connected to the closed tank, and a film sticking device for a cathode ray tube panel, comprising: