JP2000093858A - Device and method for producing barrier rib - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the formation of a chipped part by packing a UV-curing resin in the groove of a die applied with a releasable coating in a rarefied air chamber, placing a substrate thereon and irradiating the resin with UV from the rear side of the substrate to cure the resin. SOLUTION: The surface of a die 11 is applied with a releasable coating 13 by impregnating with Teflon(R) resin. A barrier rib material 15 is filled in a groove 12 on the surface of the die 11 in a rarefied air chamber 14 by a barrier rib material filling device 16 by the use of a mask 21. The die 11 is brought out of the rarefied air chamber 14, a substrate 17 is placed thereon, the rib material 15 is irradiated with the UV 18 from plural UV irradiation lamps 19 through the substrate 17, and the barrier rib material 15 adhered to the substrate 17 is cured. The substrate 17 is pulled up, and the cured barrier rib material 15 is discharged from the die 11. The substrate 17 is reversed, and a barrier rib 22 is heated by a heater 20 and baked. Consequently, the tip of the rib 22 is not chipped, and the deterioration is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for manufacturing a barrier rib which is a plasma partition used for a plasma display panel (PDP) or a plasma address LC (PALC) for a large-sized thin television.

[0002]

2. Description of the Related Art In a plasma display panel, a plasma gas is sealed between two substrates and a planar electrode group is provided, and a voltage is applied to only a specific one of the respective electrodes, so that an intersection between the two electrodes is obtained. It generates plasma and displays characters and numbers. In such a plasma display panel, the substrate is formed by sealing a plasma gas between a glass front substrate and a rear substrate. For example, a large number of barrier ribs (partitions) are formed on the rear substrate. The plasma gas is divided into a plurality of rooms.

[0003] Generally, a plasma display panel has a structure in which barrier ribs are sandwiched between a pair of opposing substrates. In recent years, as the definition of PDPs and PALCs has increased, the barrier ribs have become thinner. It has become to.

FIG. 3 schematically shows a manufacturing process of a conventional barrier rib manufacturing method.

As shown in FIG. 3A, a plurality of grooves 102 are formed on the surface of a mold 101 for manufacturing a barrier rib. First, the mold 101 is impregnated with a Teflon resin on the surface of the mold. A coating 103 is applied. Next, as shown in FIG. 3B, a mask 104 is used on the surface of the mold 101, a barrier rib material 105 containing an ultraviolet curable resin is supplied to the upper surface of the mask 104, and the squeegee 106 is moved. , Each groove 1
02 is filled with the barrier rib material 105. And FIG.
As shown in (c), a substrate 107 is superimposed on a mold 101 in which each groove 102 is filled with a barrier rib material 105, and a plurality of ultraviolet irradiation lamps 108 pass through the substrate 107 to form a barrier rib material 10.
5 is irradiated with ultraviolet light.

The barrier rib material 105 is irradiated with the ultraviolet rays.
When the substrate is cured and adhered to the substrate 107, as shown in FIG. 3D, when the substrate 107 is pulled up and taken out of the mold 101, a plurality of barrier ribs 109 are formed. Then, as shown in FIG. 3 (e), after turning the die-cut substrate 107 over, the plurality of barrier ribs 108 are heated and fired by a heater 110 in an incinerator to remove the ultraviolet curable resin, and the barrier ribs 109 are manufactured. Is done.

[0007]

In the conventional method of manufacturing a barrier rib, as described above, the barrier rib material 105 is supplied to the surface of the mold 101 and the squeegee 106 is moved to move the squeegee 106 into each groove 102. The barrier rib material 105 is filled. However, the groove 102 is thin and deep due to the miniaturization of the barrier rib. When the barrier rib material 105 is filled in the groove 102 by the squeegee 106, the groove 102
The air in 102 may remain without being evacuated. In this case, as shown in FIG. 3B, a space S in which the barrier rib material 105 is not filled in the groove 102 of the mold 101 occurs.
(d) As shown in (e), when the substrate 107 is pulled up from the mold 101, a notch C is formed at the tip of a part of the barrier rib 109, and the barrier rib having the notch C even when heated and baked.
There is a problem that the quality is remarkably deteriorated at 109.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a barrier rib manufacturing apparatus and a manufacturing method which improve quality by manufacturing barrier ribs having no chips.

[0009]

According to a first aspect of the present invention, there is provided an apparatus for manufacturing a barrier rib, comprising: a coating means for applying a releasable coating in a plurality of grooves formed on a surface of a mold; A barrier rib material filling means for filling a barrier rib material mixed with an ultraviolet curable resin into each groove of the mold in a diluted air chamber, and a substrate on a surface of the mold filled with the barrier rib material in each groove. The substrate superimposing means to be superimposed, the ultraviolet light irradiating means for irradiating ultraviolet rays to the barrier rib material in each groove from the back side of the substrate, and the substrate and the substrate from the mold after the barrier rib material in each groove is cured. And a barrier rib material takeout means for taking out the barrier rib material.

[0010] In a second aspect of the present invention, there is provided a method for manufacturing a barrier rib, wherein a plurality of grooves formed on a surface of a mold are coated with a release coating, and a barrier rib material mixed with an ultraviolet curable resin is mixed in a dilute air chamber. Filling each groove of the mold, curing the barrier rib material by irradiating the barrier rib material in each groove with ultraviolet rays from the back side of the substrate after superimposing the substrate on the surface of the mold, Thereafter, the substrate and the barrier rib material are taken out of the mold to manufacture a barrier rib.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic configuration showing a barrier rib material filling apparatus in a barrier rib manufacturing apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic view showing a process of manufacturing a barrier rib by the barrier rib manufacturing apparatus of this embodiment.

FIG. 2 shows a barrier rib manufacturing apparatus according to this embodiment.
As shown in FIG. 2, a coating apparatus for applying a releasable coating 13 in a plurality of grooves 12 formed on the surface of a mold 11 (see FIG. 2A) and an ultraviolet curable resin mixed in a diluted air chamber 14 Of the barrier rib material 15 formed in each groove 1 of the mold 11
2 (see FIG. 2 (b)), and a substrate stacking device (FIG. 2 (FIG. 2)) that superposes a substrate 17 on the surface of the mold 11 in which the groove 12 is filled with the barrier rib material 15. c)) and each groove 12 from the back side of the substrate 17.
An ultraviolet irradiation lamp 19 as an ultraviolet irradiation device for irradiating ultraviolet light 18 to the barrier rib material 15 in the inside (see FIG. 2C)
And a barrier rib material take-out device (see FIG. 2D) for taking out the substrate 17 and the barrier rib material 15 from the mold 11 after the barrier rib material 15 in each groove 12 is cured. An incinerator (see FIG. 2 (e)) as a barrier rib incinerator for removing ultraviolet curing resin by heating and baking by the heater 20 is provided.

In the barrier rib filling apparatus 16 of the barrier rib manufacturing apparatus, as shown in FIG. 1, a box-shaped negative pressure box 32 is installed on a base 31, and an O-ring 33 is interposed on the installation surface. Mounted and sealed. An exhaust pump 35 is connected to the negative pressure box 32 via an exhaust pipe 34. The exhaust pump 35 is driven to discharge air in the negative pressure box 32 via the exhaust pipe 34. Thus, a lean air chamber 14 is formed inside.

A guide rail 36 is mounted on the ceiling of the negative pressure box 32 in the lean air chamber 14, and a slider 38 is movably mounted on the guide rail 36 via a guide member 37. ing. And
One end of a drive rod 39 is connected to the slider 38, while the other end of the drive rod 39 extends outside the negative pressure box 32 via a seal 40 and is connected to an actuator (not shown). . Therefore, by driving this actuator, the slider 38 can be moved via the drive rod 39.

The slider 38 has a squeegee 4 at its lower end.
The support shaft 42 to which 1 is attached is supported movably up and down, and is urged and supported downward by a compression spring 43. A nozzle 44 is attached to the slider 38 adjacent to the squeegee 41, and one end of a flexible pipe 45 is connected to the nozzle 44, while the other end extends outside the negative pressure box 32. And is connected to the barrier rib supply device 46. Therefore, this barrier rib supply device 46
When the barrier rib material 15 is supplied from the
The barrier rib material 15 can be discharged from the tip of the nozzle 44 toward the surface of the mold 11 placed on the base 31. At this time, the squeegee 41 is urged downward by the compression spring 43, and the lower end thereof is pressed against the surface of the mold 11. In this state, when the slider 38 is moved in the direction of the arrow in FIG. The formed barrier rib material 15 can be sequentially filled into each groove 12 by the squeegee 41.

Here, a method of manufacturing a barrier rib by the above-described barrier rib manufacturing apparatus of the present embodiment will be described.

As shown in FIG. 2A, first, a releasable coating 13 impregnated with a Teflon resin is applied to the surface of a mold 11 by a coating apparatus. Next, FIG.
As shown in FIG. 5, a barrier rib material 15 is filled in each groove 12 by a barrier rib material filling device 16 using a mask 21 on the surface of the mold 11. That is, as shown in FIG. 1, the mold 11 is placed at a predetermined position on the base 31, and the inside of the negative pressure box 32 is sealed.
5 to drive the air in the negative pressure box 32 into the exhaust pipe 3.
By exhausting through 4, a lean air chamber 14 is formed. Then, with the slider 38 positioned on the right side in FIG.
5 is supplied to discharge the barrier rib material 15 from the tip of the nozzle 44 to the surface of the mold 11, and at the same time, the actuator is driven to move the slider 38 to the left in FIG. Then, together with the slider 38, the squeegee 41 whose lower end is pressed against the surface (mask 21) of the mold 11 moves in the same direction,
The barrier rib material 15 discharged onto the surface of the mold 11 is
2 is filled in order.

The barrier rib material 1 is provided in each groove 12 of the mold 11.
When the mold 5 is filled, the mold 11 is taken out from the negative pressure box 32, and the substrate 17 is overlaid on the mold 11 by a substrate stacking device as shown in FIG. Then, ultraviolet rays 18 are applied to the barrier rib material 15 through the substrate 17 by a plurality of ultraviolet irradiation lamps 19. Then, since the barrier rib material 15 is cured by the irradiation of the ultraviolet light 18 and adheres to the substrate 17, as shown in FIG. 2D, the substrate 17 is pulled up by the barrier rib material removal device, and the barrier rib material hardened together with the substrate 17. 15 is removed from the mold 11. At this time, since the releasable coating 13 is applied to the surface of the mold 11, the barrier rib material 15 can be easily removed from the groove 12 of the mold 11. Then, as shown in FIG. 2 (e), the die-cut substrate 17 is turned over, placed in an incinerator, and a plurality of barrier ribs 22 are heated and fired by the heater 20 to remove the ultraviolet curable resin, thereby manufacturing the barrier ribs 22. I do.

As described above, in the manufacturing method using the barrier rib manufacturing apparatus according to the present embodiment, the barrier rib material filling apparatus 1 is used.
6, the lean air chamber 14 is formed in the negative pressure box 32, and the barrier rib material 15 discharged from the nozzle 44 in the lean air chamber 14 is moved into the groove 12 of the mold 11 by moving the squeegee 41. It is filling. Therefore, the barrier rib material 15 can be easily and reliably filled into each groove 12 of the mold 11 having little residual air,
No space is formed in the groove 12 due to the residual air, and a cut-off portion is not formed at the end of the manufactured barrier rib 22, thereby preventing a decrease in product quality.

[0021]

As described above in detail in the embodiment, according to the barrier rib manufacturing apparatus of the first aspect,
Coating means for applying a releasable coating in a plurality of grooves formed on the surface of the mold; barrier rib material filling means for filling a barrier rib material mixed with an ultraviolet curable resin in a lean air chamber; Substrate superimposing means for superimposing a substrate on the surface of the mold filled with a barrier rib material therein,
Ultraviolet irradiation means for irradiating the barrier rib material with ultraviolet light from the back side of the substrate, and barrier rib material extraction means for taking out the barrier rib material together with the substrate from the mold after the barrier rib material has been cured are provided. By filling in the mold groove, the barrier rib material can be easily and surely filled into the groove portion, and there is no generation of a space portion due to residual air in the groove portion, and a barrier rib without chipping is manufactured. Thus, the quality can be improved.

Further, according to the barrier rib manufacturing method of the present invention, a plurality of grooves formed on the surface of the mold are coated with a releasable coating, and a barrier rib material mixed with an ultraviolet curable resin in a diluted air chamber. Is filled in each groove, the substrate is superposed on the surface of the mold, and the barrier rib material in each groove is irradiated with ultraviolet rays to be cured. Thereafter, the substrate and the barrier rib material are taken out from the mold to manufacture the barrier rib. Since the barrier rib material is filled into the groove of the mold in the lean air chamber, the barrier rib material can be easily and reliably filled into the groove portion, and the space portion due to the residual air in the groove portion The generation of barrier ribs without chips does not occur, and the quality of the ribs can be improved by manufacturing barrier ribs without chips.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a barrier rib material filling device in a barrier rib manufacturing device according to an embodiment of the present invention.

FIG. 2 is a schematic view illustrating a process of manufacturing a barrier rib by a barrier rib manufacturing apparatus of the present embodiment.

FIG. 3 is a schematic view illustrating a manufacturing process of a conventional barrier rib manufacturing method.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 mold 12 groove 13 release coating 14 diluted air chamber 15 barrier rib material 16 barrier rib filling device 17 substrate 18 ultraviolet ray 19 ultraviolet irradiation lamp 20 heater 22 barrier rib 32 negative pressure box 35 exhaust pump 38 slider 41 squeegee 44 nozzle

Continued on the front page F term (reference) 4D073 AA01 BB03 CB20 5C027 AA09 5C040 GF19 JA02 JA20 JA31 KA16 MA22 MA23

Claims (2)

[Claims] 1. A coating means for applying a releasable coating to a plurality of grooves formed on the surface of a mold, and a barrier rib material mixed with an ultraviolet curable resin in a dilute air chamber is filled in each groove of the mold. Barrier rib material filling means, substrate stacking means for superimposing a substrate on the surface of the mold in which each groove is filled with the barrier rib material, and ultraviolet light from the back side of the substrate to the barrier rib material in each groove. And a barrier rib material removing means for removing the substrate and the barrier rib material from the mold after the barrier rib material in each of the grooves is cured. 2. A mold release coating is applied to a plurality of grooves formed on the surface of the mold, and a barrier rib material mixed with an ultraviolet curable resin is filled in each groove of the mold in a diluted air chamber. After the substrate is overlaid on the surface of the mold, the barrier rib material in each of the grooves is irradiated with ultraviolet rays from the back side of the substrate to cure the barrier rib material, and thereafter, the substrate and the barrier rib are removed from the mold. A method for manufacturing a barrier rib, comprising manufacturing a barrier rib by taking out a material.