JP5137363B2 - Glass substrate continuous firing equipment - Google Patents

Description

This invention includes a plasma display panel (hereinafter, abbreviated as PDP.) Using a glass substrate holding member for use in baked held in a standing state a plurality of glass substrates to be used for such, to the glass substrate holding member The present invention relates to a glass substrate continuous baking apparatus that holds a plurality of glass substrates in an upright state and moves them sequentially in a baking furnace by a transfer device, and performs a baking process on the glass substrate held by the glass substrate holding member. When the glass substrate holding member is improved and a return device is provided to return the glass substrate holding member to the inlet side of the firing furnace after firing, the overall installation area of the continuous glass substrate firing device is suppressed. It has the feature in the point made to do.

  In manufacturing a PDP or the like using a glass substrate, it is generally performed to fire a partition, a phosphor, a seal frit, or the like formed on the glass substrate.

  Here, in firing the glass substrate as described above, the glass substrate is generally placed horizontally on a setter generally made of heat-resistant glass in order to prevent the glass substrate from being distorted during firing. In addition, a plurality of glass substrates that are horizontally placed on the setter in this manner are stacked in a vertical direction at a required interval, and are moved in a firing furnace by a conveying device such as a hearth roller to emit radiation. Firing is performed by heating the main body.

  However, in the case where the glass substrate is horizontally placed on the setter as described above and fired by radiation-based heating, the heat transfer rate to the glass substrate is reduced, and the number of glass substrates to be laminated is increased. The temperature difference between the glass substrates becomes large and it becomes difficult to perform a constant baking process. For this reason, the number of glass substrates to be laminated cannot be increased so much, and the glass substrates are efficiently fired. There was a problem that could not.

  For this reason, in recent years, a plurality of glass substrates are held upright on a tray, and the tray is moved in a firing furnace by a conveying device such as a hearth roller in this state, and is heated in the firing furnace. There has been proposed a method in which the above-mentioned glass substrate is fired by sending the generated gas downward from above (see, for example, Patent Document 1).

  Here, in order to hold a plurality of glass substrates in an upright state on the tray as described above, a frame body assembled by welding an L-shaped angle on the tray is attached, and a side support plate of this frame body A plate spring is provided on the side support member attached to the plate, the side portion of the glass substrate is sandwiched by the plate spring, a lower end support member is provided on the tray, and the lower end of the glass substrate is provided on the lower end support member. It is done to support.

  Then, after holding a plurality of glass substrates in an upright state on the tray as described above and performing a baking treatment in the baking furnace, when returning the tray to the loading side of the baking furnace, Next, a return device such as a roller conveyor is provided, and with this return device, the tray on which the frame or the like is attached is conveyed as it is along the firing furnace and returned.

  However, when a return device such as a roller conveyor is provided next to the firing furnace in this way, an installation area for the return device is required, and there is a problem that the installation area of the entire glass substrate continuous firing device is increased. .

In addition, when the glass substrate to be fired becomes large as in recent years, the bending at the time of lifting the glass substrate becomes large and it is easy to break, and the side support plate of the frame body integrally provided on the tray as described above It becomes very difficult to attach the side support member and hold the glass substrate on the tray in an upright state by sandwiching the side portion of the glass substrate by the leaf spring provided on the side support member. There was also a problem.
Japanese Patent Laid-Open No. 11-311484

  The present invention provides a novel glass substrate holding member for holding a plurality of glass substrates in a standing state in a glass substrate continuous firing apparatus for continuously firing a glass substrate used for PDP or the like, and this glass after firing When a return device is provided to return the substrate holding member to the inlet side of the firing furnace, the installation area of the entire glass substrate continuous firing device is suppressed, and when the glass substrate to be fired becomes large However, another object of the present invention is to enable the glass substrate to be held in a state where it is properly stood on the glass substrate holding member.

In the first glass substrate continuous firing apparatus of the present invention, in order to solve the above-described problems, a plurality of substrate holders that hold the glass substrate in an upright state can be detachably mounted on the magazine base at a required interval. The glass substrate holding member is erected on the glass substrate, and a plurality of glass substrates are held upright on the glass substrate holding member, and the glass substrate holding member is directed from the charging furnace inlet to the extraction port by the transport device. In the glass substrate continuous firing apparatus that sequentially moves the inside of the firing furnace and fires the glass substrate held by the glass substrate holding member, the glass substrate is placed at a position below or above the firing furnace. A return device for returning the magazine base and the substrate holder in the holding member to the inlet side of the baking furnace is provided, and the glass substrate is placed on the inlet side of the baking furnace. Glass substrate introduction means for setting the substrate holder separated from the magazine base in a state, and substrate holder mounting means for mounting the substrate holder on which the glass substrate is set up and attaching to the magazine base are provided. .

Further, in the second glass substrate continuous firing apparatus of the present invention, in order to solve the above-described problems, a plurality of substrate holders that hold the glass substrate in an upright state are arranged on the magazine base with a required interval. A glass substrate holding member that is detachably installed is used, and a plurality of glass substrates are held upright on the glass substrate holding member, and the glass substrate holding member is extracted from the inlet of the firing furnace by the transfer device. In the glass substrate continuous firing apparatus that sequentially moves the inside of the firing furnace toward the glass substrate and fires the glass substrate held by the glass substrate holding member, the above-mentioned firing furnace is placed at a position below or above the firing furnace. In addition to providing a return device for returning the magazine base and the substrate holder in the glass substrate holding member to the inlet side of the baking furnace, the post-baking is provided on the extraction port side of the baking furnace. A substrate holder detaching means for detaching the substrate holder holding the glass substrate from the magazine base and setting it in a horizontal state, and a glass substrate discharging means for taking out the glass substrate from the substrate holder set in the horizontal state And so on.

Further, a glass substrate introducing means for combining the first and second glass substrate continuous firing apparatuses and setting the glass substrate in a horizontal state on the inlet side of the firing furnace and setting the substrate in a substrate holder separated from the magazine base. And a substrate holder attaching means for erecting the substrate holder on which the glass substrate is set and attaching it to the magazine base, and holding the glass substrate after firing on the extraction port side of the firing furnace It is also possible to provide substrate holder detachment means for detaching the holder from the magazine base and setting it in a horizontal state, and glass substrate discharge means for taking out the glass substrate from the substrate holder set in the horizontal state.

In the glass substrate continuous firing apparatus according to the present invention, a plurality of substrate holders that hold the glass substrate in an upright state are detachably provided on the magazine base of the glass substrate holding member with a predetermined interval. Therefore, in a state where the substrate holder is separated from the magazine base, a glass substrate can be set on the substrate holder, and the glass substrate after the baking treatment can be taken out from the substrate holder. After the substrate is taken out from the substrate holder, the substrate holder and the magazine base can be returned to the inlet side of the firing furnace in a state where they are separated.

  In the continuous glass substrate baking apparatus according to the present invention, the apparatus for returning the glass substrate holding member to the inlet side of the baking furnace with the magazine base and the substrate holder separated as described above is provided below the baking furnace. Alternatively, since it is provided at the upper position, it is not necessary to provide a return device beside the baking furnace as in the prior art, and the installation area of the entire glass substrate continuous baking apparatus can be reduced.

  Further, as described above, the glass substrate introducing means and the substrate holder attaching means are provided on the inlet side of the baking furnace, and the glass substrate is horizontally placed by the glass substrate introducing means and set on the substrate holder separated from the magazine base. When the substrate holder on which the glass substrate is set in this way is erected by the substrate holder attaching means and attached to the magazine base, even when the glass substrate to be baked becomes large, this glass substrate is attached to the glass substrate holding member. When the glass substrate is held in a standing state, the glass substrate is prevented from being bent and cracked, and even a large glass substrate can be held by the substrate holder and held in a properly standing state on the glass substrate holding member. It becomes like this.

  Further, as described above, the substrate holder detachment means and the glass substrate discharge means are provided on the extraction port side of the baking furnace, and the substrate holder that holds the glass substrate after baking is detached from the magazine base by the substrate holder detachment means. If the glass substrate is taken out by the glass substrate discharging means from the substrate holder set in the horizontal state as described above, the glass substrate may be bent and cracked even if it is a large glass substrate as described above. Is prevented, and the glass substrate holding member can be appropriately taken out.

Hereinafter, a glass substrate continuous firing apparatus according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the glass substrate continuous baking apparatus according to the present invention is not limited to the one shown in the following embodiment, and can be implemented with appropriate modifications within a range not changing the gist of the invention.

In the glass substrate holding member 10 used in the glass substrate continuous firing apparatus in this embodiment, as shown in FIG. 1, a plurality of substrate holders 12 that hold the glass substrate 1 in an upright state on a magazine base 11 are provided. It is designed to stand detachably.

  Here, in the substrate holder 12, as shown in FIGS. 1 and 2, a receiving portion 12 b that supports the lower end of the glass substrate 1 is formed at the lower portion of a frame body 12 a formed in a square ring shape. A stopper member 12c that suppresses the displacement of the glass substrate 1 is provided on the portion 12b, and the mounting leg 12d extends downward from the receiving portion 12b, and protrudes further forward than the side frame 12a1 of the frame body 12a. In this way, the front stop member 12e is attached so as to span the side frames 12a1 on both sides.

  On the other hand, the magazine base 11 is provided with a mounting hole 11b for inserting a mounting leg 12d provided on the substrate holder 12 on the upper surface 11a thereof as shown in FIG. Then, the mounting legs 12 d provided on each of the substrate holders 12 are inserted into the mounting holes 11 b provided on the magazine base 11, respectively, so that each of the substrate holders 12 is detachably installed on the magazine base 11. ing.

  Moreover, in the glass substrate continuous baking apparatus in this embodiment, a plurality of substrate holders 12 that hold the glass substrate 1 in an upright state are erected on the magazine base 11 of the glass substrate holding member 10 as described above. In this state, as shown in FIG. 3, the glass substrate holding member 10 is sequentially inserted into the baking furnace 20 from the charging door 21 provided at the charging port 20 a of the baking furnace 20. The glass substrate holding member 10 loaded as described above is sequentially moved in the firing furnace 20 by the transfer device 22 including a hearth roller provided in the inside.

  And the gas heated by heating means (not shown), such as a heater, is sent from the upper side to the lower side by a circulation fan 23 provided on the upper portion of the baking furnace 20, and each glass substrate is held by the heated gas. The glass substrate 1 held on the substrate holder 12 of the member 10 is sequentially heated and fired, and the glass substrate holding member 10 thus fired is extracted from the firing furnace 20. The extraction door 24 provided at the opening 20b is sequentially led out of the firing furnace 20.

  Moreover, in the glass substrate continuous baking apparatus in this embodiment, each substrate holder 12 in the glass substrate holding member 10 led out of the baking furnace 20 from the extraction door 24 of the baking furnace 20 as described above from the magazine base 11. Each glass substrate 1 after firing that has been separated and held by each substrate holder 12 is taken out, and the glass substrate holding member 10 is separated into the magazine base 11 and each substrate holder 12 as described above. The return device 30 such as a conveyor provided under the firing furnace 20 is returned to the charging port 20a side of the firing furnace 20.

  Here, when the glass substrate holding member 10 is left separated into the magazine base 11 and the substrate holders 12 as described above, the height can be reduced, and the bottom portion of the firing furnace 20 can be reduced. As compared with the conventional case where the return device is provided on the side of the firing furnace, the installation area of the entire glass substrate continuous firing device can be reduced.

  Further, when the glass substrate 1 to be fired is held on each substrate holder 12 of the glass substrate holding member 10 as described above on the side of the inlet 20 a of the firing furnace 20, In the glass substrate continuous firing apparatus in the embodiment, as shown in FIG. 4A, the glass substrate 1 is placed in a horizontal state, and on a circular support member 41a provided on the guide member 41 at a required interval. The glass substrate 1 is guided by the guide member 41 between the frame body 12a of the substrate holder 12 and the front surface stopping member 12e in a state where the glass substrate 1 is tilted horizontally. 12b is brought into contact with the stopper member 12c.

  Then, as shown in FIG. 4B, the glass substrate 1 is held together with the substrate holder 12 with the support member 41a of the guide member 41 as described above by a robot (not shown) or the like. 4C, after the guide member 41 is removed from the substrate holder 12, the mounting legs 12d provided on the substrate holder 12 are provided on the magazine base 11 as described above. The substrate holder 12 is detachably installed on the magazine base 11 by being inserted into the mounting holes 11b.

  In this case, even when the glass substrate 1 to be baked becomes large, when the glass substrate 1 is held on the glass substrate holding member 10 in a standing state, the glass substrate 1 is bent and cracked. Will be prevented.

  Further, as described above, each substrate holder 12 of the glass substrate holding member 10 is separated from the magazine base 11 and each glass substrate 1 after firing held by each substrate holder 12 is taken out. In the continuous firing apparatus, the substrate holder 12 standing on the magazine base 11 is separated from the magazine base 11 by a robot (not shown) or the like as shown in FIG. Then, as shown in FIG. 5 (B), a take-out member 42 in which circular support members 42a are provided at a required interval is guided into the frame 12a of the substrate holder 12, and the take-out member 42 The support member 42a is brought into contact with the glass substrate 1.

  Then, with the support member 42a of the take-out member 42 in contact with the glass substrate 1 as described above, the substrate holder 12 is tilted by the robot or the like as shown in FIG. Are held on the support member 42a of the take-out member 42, and thereafter, the glass substrate 1 is taken out from between the frame 12a of the substrate holder 12 and the front surface stopping member 12e by the take-out member 42. .

  In this way, even when the glass substrate 1 becomes larger as described above, the glass substrate 1 is bent when the glass substrate 1 after firing held in a state where it is stood on the glass substrate holding member 10 is taken out. It will be prevented from cracking.

In the glass substrate holding member used in the glass substrate continuous firing apparatus according to one embodiment of the present invention, a state in which a plurality of substrate holders that hold the glass substrate in an upright state are detachably installed on the magazine base It is the schematic explanatory drawing which showed. It is a schematic front view of the substrate holder in said glass substrate holding member used in the embodiment. It is a schematic explanatory drawing of the glass substrate continuous baking apparatus which concerns on one Embodiment of this invention which bakes a glass substrate using said glass substrate holding member. In the glass substrate continuous baking apparatus which concerns on the embodiment, it is the schematic explanatory drawing which showed the process hold | maintained in the state which stood the glass substrate to baking at the substrate holder in said glass substrate holding member. In the glass substrate continuous baking apparatus which concerns on the embodiment, it is the schematic explanatory drawing which showed the process of taking out the glass substrate after baking processing from the substrate holder in said glass substrate holding member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Glass substrate 10 Glass substrate holding member 11 Magazine base 11a Upper surface 11b Mounting hole 12 Substrate holder 12a Frame body 12a1 Side frame 12b Receiving part 12c Holding member 12d Mounting leg 12e Front surface stopping member 20 Firing furnace 20a Inlet 20b Extraction port 21 Installation Entrance door 22 Transport device 23 Circulating fan 24 Extraction door 30 Return device 41 Guide member 41a Support member 42 Extraction member 42a Support member

Claims (4)

A substrate holder for holding the glass substrate in an upright state uses a glass substrate holding member that is detachably mounted on the magazine base with a predetermined interval, and a plurality of glass substrates are attached to the glass substrate holding member. The glass substrate holding member is held in an upright state, and the glass substrate holding member is moved in order in the baking furnace from the inlet of the baking furnace to the extraction port by the transfer device, and the glass substrate held by the glass substrate holding member is moved. In the continuous baking apparatus for the glass substrate to be baked, the magazine base and the substrate holder in the glass substrate holding member are separated and returned to the loading side of the baking furnace at a position below or above the baking furnace. And a glass substrate introduction means for setting the glass substrate on a substrate holder separated from the magazine base in a horizontal state on the inlet side of the firing furnace. The above substrate holder glass substrate is set by standing the glass substrate continuous firing apparatus characterized in that a substrate holder attachment means for attaching to the magazine base. A substrate holder for holding the glass substrate in an upright state uses a glass substrate holding member that is detachably mounted on the magazine base with a predetermined interval, and a plurality of glass substrates are attached to the glass substrate holding member. The glass substrate holding member is held in an upright state, and the glass substrate holding member is moved in order in the baking furnace from the inlet of the baking furnace to the extraction port by the transfer device, and the glass substrate held by the glass substrate holding member is moved. In the continuous baking apparatus for the glass substrate to be baked, the magazine base and the substrate holder in the glass substrate holding member are separated and returned to the loading side of the baking furnace at a position below or above the baking furnace. An apparatus is provided, and the substrate holder for holding the glass substrate after firing is detached from the magazine base and set in a horizontal state on the extraction port side of the firing furnace. A substrate holder withdrawal means that a glass substrate continuous firing apparatus characterized by comprising a glass substrate discharge means for removing the glass substrate from the substrate holder set in a horizontal state of the. The glass substrate continuous firing apparatus according to claim 2, wherein a glass substrate introduction means for placing the glass substrate in a horizontal state and setting it on a substrate holder separated from the magazine base is disposed on the inlet side of the firing furnace. A glass substrate continuous firing apparatus, comprising: a substrate holder attaching means for raising the set substrate holder and attaching it to the magazine base. The glass substrate continuous firing apparatus according to any one of claims 1 to 3, wherein the magazine base and the substrate holder in the glass substrate holding member are separated at a position below or above the firing furnace. A glass substrate continuous firing apparatus, characterized in that a return device is provided to return to the inlet side of the firing furnace in a horizontal state.

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