JP2005271437A - Pasting device and pasting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pasting device and a pasting method which can continuously perform a pasting work of a good product film. <P>SOLUTION: This pasting device has a base board conveying means 11 which conveys a base board 3, and a film conveying means 4 equipped with a conveying sheet 7 which conveys a film member 5 by pasting it. An inverting section which inverts the conveying sheet 7 is formed on the conveying means 4, and the pasting device is equipped with switching means 21 to 23. The switching means 21 to 23 switch a separation allowing inverting section which allows the separation of the film member 5 when the conveying sheet 7 is inverted at the inverting section, and a separation inhibiting inverting section which inhibits the separation of the film member 5, depending on the quality of the film member 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bonding apparatus and a bonding method for bonding a film member to a substrate, and particularly to a bonding apparatus and a bonding method suitable for manufacturing a front panel for a plasma display panel.

In recent years, a plasma display panel (PDP) is known in which a front plate having various functions such as prevention of PDP damage and reflection prevention is arranged on the front surface of the panel. This PDP front plate is formed by bonding a plurality of film members to each other on a glass substrate. Examples of the film member include an antiglare film, an electromagnetic wave shielding film, and an antireflection film.

  Bonding means I for bonding a film with a single-sided adhesive to the surface of member A in order to continuously bond three or more types of films and the like as a manufacturing apparatus and manufacturing method for this type of PDP front plate. And the thing which installed the bonding means II which bonds a film adhesive on the back surface of the member A, and the bonding means III which bonds the member A on the surface of the member B in the conveyance direction of the member A is proposed. (See Patent Document 1).

However, when a defective product (defective film) is mixed in the film to be transported, if it is directly bonded to the glass substrate, the function as the front plate for PDP will be impaired. The bonded glass substrate must be discarded. Therefore, it is necessary to remove the defective film before bonding to the glass substrate.
As this type of technology, the labels are drawn out and adsorbed to the suction drum at predetermined intervals, and the rollers are pressed against the labels determined to be defective among these labels, and wound around the accompanying rollers as the suction drum rotates. A technique for eliminating this problem has been proposed (see Patent Document 2).
JP 2003-226465 A JP-A-11-174630

However, in the conventional technique, as the defective product is wound around the roller, the outer surface becomes bulky, so that the number of defective products that can be wound up is limited. As a result, when the number of defective products is large, it is necessary to replace the rollers in the middle of the bonding process, which interrupts the bonding process and lowers the work efficiency.
Further, when the above-described conventional technology is applied to the PDP front plate, it is necessary to dispose a large suction drum and a take-up roller in the film or substrate transport path, so that the entire apparatus becomes larger and the required space is increased. There is a problem that it becomes difficult to secure the necessary space.

  Accordingly, an object of the present invention is to provide a bonding apparatus and a bonding method capable of continuously bonding a non-defective film without bonding a defective film while suppressing an increase in necessary space. To do.

  The invention according to claim 1 includes: a substrate transport unit that transports a substrate; a film transport unit that includes a transport sheet that pastes and transports a film member; and a bonding unit that bonds the film member and the substrate together. The film conveying means has a reversing portion for reversing the conveying sheet, and when the reversing portion reverses the conveying sheet, the film member allows separation of the film member from the conveying sheet. Switching means for switching between a reversing unit and a peeling prohibition reversing unit that prohibits peeling of the film member from the transport sheet when the transport sheet is reversed by the reversing unit according to the quality of the film member. And the film member peeled off at the peeling permissible reversing part is bonded to the substrate by the bonding means.

  According to this invention, the said board | substrate is conveyed by the said board | substrate conveyance means, and the said film member is affixed on the said conveyance sheet | seat, and is conveyed by the said film conveyance means. And when the film member conveyed by the said film conveyance means is a good product, the reversing part formed in the said film conveyance means is switched to the peeling permissible reversal part by the said switching means. Thereby, the said film member peels from the said conveyance sheet | seat by the said peeling permissible inversion part, is delivered to the conveyance path | route of the said board | substrate, and is bonded by the said bonding means. On the other hand, when the film member conveyed by the film conveying means is a defective product, the reversing portion formed on the film conveying means is switched to the separation prohibiting reversing portion by the switching means. As a result, the film member is prohibited from being peeled off from the transport sheet by the peel prohibiting reversal unit, and is discharged while being attached to the transport sheet without being transferred to the transport path of the substrate.

  The invention according to claim 2 is the invention according to claim 1, wherein the switching means is a sharp member that presses against the reversing portion of the film conveying means and switches to the peelable reversing portion, and the sharp member includes A separation prohibiting roll that contacts the film conveying means and is switched to the separation prohibition reversing portion in a state of being separated from the reversing portion.

  According to this invention, the reversing part can be a peelable reversing part bent at an acute angle by pressing the reversing part with the sharp member. In addition, by separating the sharp member from the reversing part and bringing the peeling prohibiting roll into contact with the reversing part, the reversing part can be a curved peeling prohibiting reversing part.

The invention according to claim 3 is the one according to claim 1 or 2, wherein the substrate is a glass substrate, and the film member is a film applied to a plasma display panel.
According to this invention, since a defective product can be eliminated from the film member bonded to the glass substrate, a highly reliable front plate for PDP can be manufactured in a short time.

  According to a fourth aspect of the present invention, a reversing portion is formed on a transport sheet that is attached and transported by attaching a film member, the film member is transferred to a transport path of a substrate via the reversing portion, and the film member is transported to the substrate. When the film member is a non-defective product, the film member is peeled off from the reversing part and allowed to be transferred to the transport path of the substrate, and the film member is a defective product. In this case, delivery of the substrate to the transport path is prohibited without peeling the film member from the reversing part.

  According to this invention, when the film member conveyed by the film conveying means is a non-defective product, the film is peeled off from the conveying sheet by the reversing unit, transferred to the conveying path of the substrate, and bonded. On the other hand, when the film member conveyed by the film conveying means is a defective product, peeling from the conveying sheet at the reversing part is prohibited, and the conveying sheet is not transferred to the conveying path of the substrate. It is discharged as it is stuck on.

According to the invention which concerns on Claim 1, even when inferior goods are mixed in the said film member, a non-defective product can be continuously bonded without bonding inferior goods, and work efficiency is improved. Can be increased. Moreover, since the path | route of the non-defective product of the said film member can be changed only by switching the said inversion part, the increase in a required space can be suppressed.
According to the invention which concerns on Claim 2, the said reversing part can be switched to a peeling prohibition reversal part and a peeling permissible reversal part by moving the said sharp member slidably with respect to the said reversing part.
According to the invention which concerns on Claim 3, a highly reliable front plate for PDP can be manufactured in a short time.
According to the invention which concerns on Claim 4, even when inferior goods are mixed in the said film member, a bonding process can be performed continuously and work efficiency can be improved. Further, since the path between the non-defective product and the defective product can be changed by simply switching the reversing unit, an increase in necessary space can be suppressed.

Hereinafter, the bonding apparatus and the bonding method in embodiment of this invention are demonstrated with drawing.
It is a schematic block diagram which shows the principal part of the bonding apparatus in embodiment of this invention.
As shown in the figure, the laminating apparatus 1 includes a plurality of transport rollers 11 constituting a substrate transport means for transporting the glass substrate 3 and a transport sheet (separator film) 7 for pasting and transporting the film member 5. Film transport means 4.

Each conveyance roller 11 is disposed with a predetermined interval so that a path for performing the bonding process of the glass substrate 3 is substantially horizontal. Each conveyance roller 11 shown in FIG. 1 is rotated in the clockwise direction, whereby the glass substrate 3 placed on the conveyance roller 11 is conveyed from the left side to the right side in FIG.
And the site | part which made the space | interval of the adjacent conveyance roller 11 larger than the other in the middle part of the conveyance path | route of the glass substrate 3 is formed. Above and below this part, bonding rolls 16 and 17 constituting the bonding means are arranged so as to face each other. The laminating rolls 16 and 17 are formed so as to be movable up and down so as to approach the height position substantially the same as the site of the transport path and to separate from the height position.

On the other hand, the film transport means 4 has a feed roll 13 that feeds the separator film 7 that adheres and holds the film member 5, and a take-up roll 14 that winds the fed separator film 7.
The delivery roll 13 is provided below the bonding rolls 16 and 17 and on the upstream side of the conveyance path of the glass substrate 3 (that is, on the lower left side in FIG. 1). And the conveyance path | route of the film member 5 is formed so that the site | part which opposes the rolls 16 and 17 for bonding in the conveyance path | route of the said glass substrate 3 from the sending roll 13 may be approached.

  The film member 5 is demonstrated using FIG. 4, FIG. FIG. 4 is a top view of the film member 5 conveyed by the bonding apparatus 1 of FIG. Moreover, FIG. 5 is sectional drawing of the film member 5 conveyed with the bonding apparatus 1 of FIG. As shown in these drawings, the film member 5 includes a film main body 10 having an original function as a film, and an adhesive layer 9 applied and formed on the lower surface thereof. The film member 5 is adhered to the separator film 7 by the adhesive layer 9. On the other hand, the surface of the separator film 7 is covered with a release agent 8. Thereby, the adhesive force to the separator film 7 of the film member 5 is weakened. In addition, when the separator film 7 itself has releasability, the release agent 8 may not be used.

  In the present embodiment, the film member 5 is cut by a cutting means (not shown) in the middle of the conveyance path of the film member 5 so that the film member 5 has substantially the same size as the glass substrate 3. What was cut beforehand so that the film member 5 may be approximately the same size as the glass substrate 3 may be wound around the feed roll 13.

The film conveying means 4 is formed with a reversing portion 20 for reversing the separator film 7 on the upstream side of the bonding rolls 16 and 17. A guide roll 18 is disposed between the reversing unit 20 and the bonding roll 16. Then, the reversing unit 20 is switched to the separation permissible reversing unit 25 and the separation prohibiting reversing unit 26 by the switching means 21 to 23.
In the present embodiment, a knife edge plate 21 which is a sharp member formed so as to be capable of being pressed against or separated from the reversing portion 20 of the film conveying means 4, and the knife edge plate 21 is separated from the reversing portion 20. Separation prohibiting rolls 22 and 23 that can come into contact with the film conveying means 4 are provided as the switching means. Details of the switching means 21 to 23 will be described later.

  Then, the separator film 7 reversed by the reversing unit 20 is wound up by a winding roll 14 that is substantially the same height as the reversing unit 20 and disposed on the upstream side of the glass substrate 3.

  In the present embodiment, the reversing unit 20 is switched to either the peeling permissible reversing unit 25 or the peeling prohibiting reversing unit 26 according to the quality of the film member 5. This will be described with reference to FIGS. In addition, about the quality of the film member 5, you may determine by arrange | positioning a determination means in the middle of the conveyance path | route of the film member 5, and before winding around the delivery roll 13, the quality of each film member 5 is good. May be determined.

  FIG. 2 is an operation explanatory diagram when the film member 5 is a non-defective product. First, the glass substrate 3 is transported by the transport roller 11, and the film member 5 is attached to the separator film 7 and transported by the film transport means 4. As shown in the figure, when the film member 5 conveyed by the film conveying means 4 is a non-defective product, the knife edge plate 21 is protruded with respect to the reversing unit 20 so that the reversing unit 20 has an acute angle. It can be set as the peeling permissible reversal part 25 bent in the direction.

  Thereby, since the peeling permission inversion part 25 can be formed so that the rigidity of the film member 5 exceeds the adhesive force, the film member 5 is peeled from the separator film 7 by the peeling permission inversion part 25. As described above, since the release agent 8 is formed on the surface of the separator film 7, the adhesive layer 9 of the film member 5 is peeled off while being adhered to the film body 10 side.

  And it is delivered to the conveyance path | route of the said glass substrate 3 through the guide roll 18. FIG. And it press-contacts with the rolls 16 and 17 for bonding, and it bonds to the glass substrate 3. FIG. On the other hand, the separator film 7 from which the film member 5 has been peeled is taken up by the take-up roll 14 and discharged.

  FIG. 3 is an operation explanatory diagram when the film member is a defective product. In this case, as shown in the figure, the reversing unit 20 is curved by separating the knife edge plate 21 from the reversing unit 20 and bringing the film conveying means 4 into contact with the separation preventing rolls 22 and 23. The peeling prohibition reversal unit 26 can be formed. As described above, the reversing unit 20 can be switched from the separation permissible reversing unit 25 to the separation prohibiting reversing unit 26 by moving the knife edge plate 21 into and out of the reversing unit 20.

  Moreover, since the peeling prohibition reversal part 26 can be formed so that the rigidity of the film member 5 is less than the adhesive force, the defective film member 6 is separated from the separator film 7 in the peeling prohibition reversal part 26. Peeling is prohibited. As a result, the defective film member 6 is discharged to the take-up roll 14 while being stuck to the separator film 7 without being transferred to the transport path of the substrate 3.

  As described above, even when the defective film member 6 is mixed in the film member 5, the bonding process can be continuously performed without bonding the defective film member 6, and the work efficiency is improved. be able to. Moreover, since the path | route of the said film member 5 and the defective film member 6 can be changed only by switching the said inversion part 20, the increase in a required space can be suppressed.

  Of course, the contents of the present invention are not limited to the above-described embodiments. In the present embodiment, since a glass substrate is used for the substrate 3 and a film applied to a plasma display panel is used for the film member 5, a highly reliable front plate for PDP can be manufactured in a short time. Although it is preferable at the point which can do, the material and use of a board | substrate or a film member are not restricted to this.

  Moreover, as a switching means, you may use the member of cross-sectional substantially oval shape from which a curvature differs, for example. In this case, it is possible to form a separation prohibiting reversal portion by bringing a portion with a large curvature of the member into contact with the reversal portion, and a separation allowing reversal portion by pressing a portion with a small curvature against the reversal portion. Can be formed.

It is a schematic block diagram which shows the principal part of the bonding apparatus in embodiment of this invention. It is operation | movement explanatory drawing in case a film member is a quality product. It is operation | movement explanatory drawing in case a film member is inferior goods. It is a top view of the film member conveyed with the bonding apparatus of FIG. It is sectional drawing of the film member conveyed with the bonding apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bonding apparatus 3 ... Glass substrate (board | substrate)
4 ... Film conveying means 5 ... Film member 6 ... Defective film member 7 ... Separator film (conveying sheet)
11 ... Conveying roller (substrate conveying means)
21 ... Knife edge plate (sharp member, switching means)
22, 23 ... roll (peeling prohibition roll, switching means)

Claims (4)

A substrate transfer means for transferring the substrate;
A film conveying means provided with a conveying sheet for adhering and conveying the film member, and a bonding means for adhering the film member and the substrate;
The film conveying means is formed with a reversing part for reversing the conveying sheet,
When reversing the transport sheet in the reversing unit, a peeling permissible reversing unit that allows the film member to peel from the transport sheet,
When reversing the transport sheet in the reversing unit, a peeling prohibition reversing unit that prohibits peeling of the film member from the transport sheet,
A bonding apparatus comprising switching means for switching depending on whether the film member is good or bad, and bonding the film member peeled off at the peeling permissible reversing portion to the substrate by the bonding means.   The switching means is a sharp member that presses against the reversing portion of the film transporting means and switches to the separation permissible reversing portion, and the peeling prohibition by contacting the film transporting means in a state where the sharp member is separated from the reversing portion. The bonding apparatus according to claim 1, further comprising a peeling prohibition roll that switches to the reversing unit. The substrate is a glass substrate;
The bonding apparatus according to claim 1, wherein the film member is a film applied to a plasma display panel. This is a bonding method in which a reversing part is formed on a conveying sheet to which a film member is attached and conveyed, the film member is transferred to a conveying path of a substrate via the reversing part, and the film member is bonded to the substrate. And
When the film member is a non-defective product, the film member is peeled off from the reversing part to allow delivery to the transport path of the substrate,
In the case where the film member is a defective product, the film member is prohibited from being peeled off from the reversing part, and delivery to the transport path of the substrate is prohibited.

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