WO2020090627A1 - Production method and production apparatus for glass sheets - Google Patents

Production method and production apparatus for glass sheets Download PDF

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Publication number
WO2020090627A1
WO2020090627A1 PCT/JP2019/041754 JP2019041754W WO2020090627A1 WO 2020090627 A1 WO2020090627 A1 WO 2020090627A1 JP 2019041754 W JP2019041754 W JP 2019041754W WO 2020090627 A1 WO2020090627 A1 WO 2020090627A1
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WO
WIPO (PCT)
Prior art keywords
glass plate
glass
inspection
zone
waste
Prior art date
Application number
PCT/JP2019/041754
Other languages
French (fr)
Japanese (ja)
Inventor
世志彦 端
隼人 奥
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to JP2020553836A priority Critical patent/JP7424303B2/en
Priority to CN201990001074.3U priority patent/CN215440208U/en
Publication of WO2020090627A1 publication Critical patent/WO2020090627A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations

Definitions

  • the present invention relates to a glass plate manufacturing method and a manufacturing apparatus.
  • glass plates are used for flat panel displays such as liquid crystal displays and organic EL displays.
  • a long glass ribbon is continuously formed.
  • a downdraw method such as an overflow downdraw method, a slot downdraw method, a redraw method, or a float method is widely adopted.
  • the glass ribbon is cut in the width direction for each predetermined length, and the glass plate is cut out from the glass ribbon.
  • the glass plate is manufactured through various processes such as further cutting both widthwise ends of the cut glass plate and performing an inspection.
  • the plurality of glass plates manufactured in this way are conveyed to a predetermined position by a conveying device and stored in a loading container (for example, a pallet or a case) by a loading device, and then the next process (delivery) in units of loading container. It is generally carried out to the previous step) (for example, see Patent Document 1).
  • the glass plate is judged not to meet the quality standards in the inspection process, it is common to discard the glass plate as a defective product. Further, regardless of the quality of the glass plate, when the downstream process such as the loading device or the loading container cannot be accepted due to a trouble or the like, it may be necessary to temporarily discard the glass plate. That is, even when it is determined in the inspection process that the glass plate satisfies the quality standard, the good glass plate may be forced to be discarded.
  • a glass plate that is discarded due to quality or other reasons (hereinafter simply referred to as a waste glass plate) is transported to a predetermined position by the transport device and loaded in the same manner as a non-defective glass plate that does not need to be discarded.
  • the device is loaded and stored in a disposal loading container (for example, a pallet or a case), and is collected (discarded) in the disposal loading container unit.
  • the present invention aims to easily and surely dispose of a waste glass plate without causing a rise in equipment costs.
  • the manufacturing method of the glass plate according to the present invention which was conceived to solve the above problems, an inspection step of inspecting a plurality of glass plates, a transfer step of transferring the glass plates that have undergone the inspection step, and a transfer of the transfer step.
  • a method of manufacturing a glass plate comprising a loading process of taking out a glass plate from a path and loading it in a loading container, wherein an inspection zone for carrying out an inspection process when a waste glass plate occurs in the glass plate
  • the method is characterized by including a first discarding step of dropping and discarding a waste glass plate on a transport path on the downstream side thereof.
  • "disposable glass plate” means a glass plate that needs to be discarded.
  • the waste glass plate can be simply and surely discarded simply by dropping the waste glass plate on the inspection zone where the inspection process is performed or on the transport path on the downstream side thereof. Therefore, it is not necessary to bother to load the waste glass plate on the waste loading container, and further, the facility for loading the waste glass plate on the waste loading container is also unnecessary.
  • the glass plate be conveyed in a horizontal position along the surface in a vertical position in the transfer step.
  • the glass plate is less likely to be subjected to air resistance during transportation, so that the transportation posture of the glass plate is stabilized.
  • the glass plate in the vertical position is dropped, so that the glass plate is less likely to receive air resistance even when it is dropped, and the falling position of the glass plate is stable.
  • the waste glass plate in the first disposal step, it is preferable that the waste glass plate is dropped into the collection chamber provided below the transfer path and discarded. With this configuration, glass powder originating in the waste glass plate generated in the collection chamber is unlikely to enter the area where the glass plate is transported or the like.
  • a forming process of forming a glass ribbon and a cutting process of cutting the glass ribbon in the width direction to obtain a glass plate are further provided, and the process is discarded in the pre-process of the inspection process.
  • a glass plate is generated, it further comprises a second disposal process of dropping and discarding the waste glass plate on the upstream side of the inspection zone.
  • the waste glass plate is placed in the same collection chamber as the first disposal process. It is preferred to drop and discard. In this way, since the common recovery chamber can be used in the first disposal process and the second disposal process, the equipment cost can be reduced as compared with the case where the recovery chambers are provided separately.
  • the glass plate may be dropped and discarded at the most upstream part of the transportation route on the downstream side of the inspection zone.
  • the position where the waste glass plate is dropped in the first disposal process and the position where the waste glass plate is dropped in the second disposal process can be close to each other, so that the space of the common recovery chamber can be reduced. .. Therefore, the equipment cost can be further reduced.
  • a glass plate manufacturing apparatus which was conceived to solve the above-mentioned problems, includes an inspection device for inspecting a plurality of glass plates, a conveying device for conveying glass plates that have undergone inspection by the inspection device, and a conveying device.
  • the apparatus for manufacturing a glass plate having a loading device for taking out a glass plate from the transport path and loading it on a loading container, on the transport path on the downstream side of the inspection zone in which the inspection device is arranged, It is characterized by including a discarding unit for dropping and discarding a waste glass plate contained in the glass plate.
  • the waste glass plate can be simply and surely discarded simply by dropping the waste glass plate to the discarding section on the inspection zone where the inspection device is arranged or on the transport path on the downstream side thereof. Therefore, it is not necessary to bother to load the waste glass plate on the waste loading container, and further, the facility for loading the waste glass plate on the waste loading container is also unnecessary.
  • FIG. 2 is a sectional view taken along line AA of FIG. 1. It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 2nd embodiment.
  • FIG. 4 is a sectional view taken along line BB of FIG. 3. It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 3rd embodiment. It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 4th embodiment. It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 5th embodiment.
  • the glass sheet manufacturing method according to the first embodiment includes a forming step, a first cutting step, a delivery step, a second cutting step, an inspection step, and a conveying step. And a loading process. That is, the glass sheet manufacturing apparatus according to the first embodiment includes a molding zone (not shown), a first cutting zone 1, a delivery zone 2, a second cutting zone 3, an inspection zone 4, and a transport zone 5. And a loading zone 6.
  • the zones 1 to 6 are provided in a processing chamber 7 (for example, a clean room) that divides and forms a space capable of blocking contaminants from the outside to some extent.
  • the molding zone a molding process of continuously molding a vertical glass ribbon (not shown) by the overflow downdraw method is carried out.
  • the molding zone is a space that is provided above the first cutting zone 1 and extends in the vertical direction, and includes a first zone for molding a glass ribbon from molten glass and a second zone for gradually cooling (annealing) the glass ribbon. , A third zone for cooling the glass ribbon, and the third zone in order from the top.
  • the molding method is not limited to the overflow downdraw method, and may be another downdraw method such as a slot downdraw method or a redraw method, or a float method. In addition, in the case of the float method, the molding zone is provided on the side of the first cutting zone 1 rather than above the first cutting zone 1.
  • a first cutting process is performed in which the glass ribbon G is cut in a widthwise direction with a predetermined length while keeping the glass ribbon in a vertical posture.
  • a scribe line is formed in a width direction at a predetermined position of the glass ribbon by a cutting device (not shown)
  • bending stress is applied along the scribe line to cut the scribe line.
  • the method for cutting the glass ribbon is not limited to cutting by bending stress, and may be laser cutting or laser fusing, for example.
  • the glass plate G is used as a substrate of a flat panel display, for example.
  • the plate thickness of the glass plate G is, for example, 0.2 mm to 10 mm, and the size of the glass plate G is, for example, 700 mm ⁇ 700 mm to 3000 mm ⁇ 3000 mm.
  • the delivery process of delivering the glass sheet G between different transport devices is carried out.
  • the board G is delivered.
  • a plurality of delivery zones for delivering the glass sheet G between different transporting devices may be provided.
  • the transfer device 8 transfers the glass plate G along the plate thickness direction of the glass plate G while holding both end portions in the width direction of the glass plate G in the vertical posture.
  • the transporting device 9 transports the glass plate G in the horizontal direction (preferably in the horizontal direction) along the surface of the glass plate G while holding the upper end of the glass plate G in a vertical posture and suspending it. That is, in the present embodiment, the transport devices 8 and 9 are switched in the delivery zone 2, and the transport direction of the glass sheet G also changes.
  • the transfer devices 8 and 9 can reciprocate within a predetermined range on the transfer path. As a method of holding the glass plate G by the transport devices 8 and 9, for example, the glass plate G may be sucked or pinched (chucked).
  • the manner of holding the glass plate G by the transfer devices 8 and 9 and the transfer direction are not particularly limited and can be appropriately changed.
  • a second cutting step is performed in which both widthwise ends of the glass sheet G are vertically cut and removed.
  • a scribe line S is formed in a vertical direction at a predetermined position of the glass plate G by a cutting device (not shown)
  • bending stress is applied along the scribe line S to cut the glass plate G.
  • the widthwise ends of the glass plate G to be removed may include ears that are relatively thicker than the widthwise center.
  • the method of cutting the glass ribbon is not limited to the cutting by bending stress, and may be, for example, laser cutting or laser fusing.
  • an inspection process for continuously inspecting a plurality of glass plates G is carried out.
  • the uneven thickness (plate thickness) of the glass plate G, the streak (stria) of the glass plate G, or the glass plate is measured by one or a plurality of inspection devices 10.
  • the type (for example, bubble, foreign substance, etc.), position (coordinates), and size of the defect included in G are measured.
  • the inspection result of the inspection device 10 is stored in the database together with the identification information of the glass plate G.
  • the inspection content in the inspection zone 4 is not particularly limited and can be changed as appropriate.
  • a marking zone for carrying out the marking step may be provided on the downstream side of the inspection zone 4 and the upstream side of the transport zone 5.
  • a two-dimensional code or a one-dimensional code is printed on the glass plate G.
  • the printed code indicates the identification information of the glass plate G, and may include the inspection result and the like.
  • the transfer device 9 performs a transfer step of transferring the glass sheet G that has been inspected.
  • the transport device 9 transports the glass sheet G in the horizontal direction along the surface of the glass sheet G while holding the upper end of the glass sheet G in the vertical position.
  • the loading zone 6 a loading process is performed in which the glass sheets G taken out from the delivery zones 5a to 5c of the transport zone 5 are loaded on a plurality of pallets 11 separately.
  • the stacking zone 6 is divided into a plurality of zones 6a to 6c along the transport path in the transport zone 5.
  • the transfer zone 5 is provided with three delivery zones 5a to 5c
  • the loading zone 6 is provided with three loading zones 6a to 6c corresponding to the delivery zones 5a to 5c.
  • the numbers of delivery zones and loading zones are not particularly limited.
  • each loading zone 6a to 6c a pallet 11 and a dedicated loading device 12 for loading the glass sheets G on the pallet 11 are arranged.
  • Each loading device 12 is capable of reciprocating between each delivery zone 5a to 5c of the transport zone 5 and each loading zone 6a to 6c.
  • Each loading device 12 conveys the glass plate G along the plate thickness direction while holding the upper end portion of the glass plate G in the vertical posture (for example, sucking or sandwiching the glass plate G), and also places the glass plate G on the pallet 11.
  • a protective sheet such as interleaving paper is interposed between the glass sheets G on the pallet 11.
  • the manner of holding the glass plate G by the stacking device 12 and the conveying direction are not particularly limited and can be appropriately changed.
  • the glass plate manufacturing method further includes a rating step of rating each glass plate G based on the inspection result by the inspection device 10.
  • the rating of the glass plate G is to classify the glass plate G determined to be non-defective based on the inspection result into a plurality of types according to the quality.
  • the glass plate G belonging to the higher rank has a higher quality than the glass plate G belonging to the lower rank, and substantially the same post-processing can be performed on the glass plates G belonging to the same rank.
  • the inspection result of the inspection device 10 is input to the control unit 13, and the control unit 13 automatically determines the rating of each glass plate G based on the input inspection result.
  • the operator may determine the rating of each glass sheet G based on the input inspection result.
  • the control unit 13 automatically selects the pallet 11 on which the glass sheets G are loaded based on the rating result.
  • the worker may select the pallet 11 on which the glass sheets G are loaded based on the rating result.
  • each pallet 11 has a preset rating of the glass sheets G to be loaded, and the control unit 13 ensures that the rating result matches the preset rating of the pallet 11.
  • the pallet 11 on which the glass sheets G are loaded is selected.
  • the arrangement mode of the plurality of pallets 11 is a mode in which the ranks are lowered from the upstream side or a rank is increased in the order from the upstream side. This arrangement mode also includes a case where a plurality of pallets 11 having the same rating are adjacent to each other. Then, the transport device 9 and the loading device 12 operate to load the glass sheets G on the pallet 11 selected by the control unit 13.
  • the control unit 13 selects the pallet 11 arranged in the loading zone 6a based on the rating result
  • the loading device 12 transfers the glass plate G to the delivery zone 5a.
  • the glass plate G is received and conveyed to the pallet 11 arranged in the stacking zone 6a.
  • each pallet 11 is loaded with glass sheets G of equivalent quality based on the result of the rating that reflects the result of the inspection process. Therefore, the post-processing can be efficiently performed on the glass sheets G stored in the same pallet 11 under substantially the same conditions.
  • the loading of the preceding glass sheet G is not completed in the pallet 11 selected by the control unit 13 based on the result of the rating. In some cases, the succeeding glass plate G cannot be loaded. Similarly, when a trouble occurs in the loading device 12 or the like, the glass plate G may not be loaded on the pallet 11 selected by the control unit 13 based on the rating result.
  • the control unit 13 reselects another pallet 11 on which a lower case should be loaded. In this case, the control unit 13 confirms in advance that the upper case is compatible with the lower case.
  • the area for collecting a good glass plate in the upper case includes the area for collecting a good glass sheet in the lower case, it is determined that the upper case is compatible with the lower case. .. Specifically, for example, when the upper rank is a target for collecting one large non-defective glass plate from the glass plate G, and the lower rank is for collecting the right half of the glass plate G as the non-defective glass plate. And so on.
  • the transport device 9 and the loading device 12 operate to load the glass sheets G on the pallet 11 of the lower rank reselected by the control unit 13. In this way, even if the specific pallet 11 is unacceptable, the glass plate G is loaded on the pallet 11 of a lower rank than the specific pallet 11, so that the glass plate G can be effectively used without being discarded. it can.
  • the waste glass plate Gx when a waste glass plate Gx to be discarded (including both a good glass plate and a defective glass plate) occurs in the glass plate G, the waste glass plate Gx.
  • the method further includes a discarding step of discarding.
  • the disposal process is carried out at two locations, that is, the inspection zone 4 or the downstream side thereof and the upstream side of the loading zone 6 (first disposal process) and the upstream side of the inspection zone 4 (second disposal process). It The discarding process on the upstream side of the inspection zone 4 may be omitted.
  • the waste glass plate Gx is discarded through the upstream disposal port 14 into the collection chamber (disposal part) 15 provided below the processing chamber 7.
  • the waste glass sheet Gx is dropped by dropping it into the recovery chamber 15 provided below the processing chamber 7 through the downstream disposal port 16. ..
  • the processing chamber 7 and the recovery chamber 15 are spaces separated by a floor surface (floor surface of the processing chamber 7) 17.
  • the processing chamber 7 is provided on the second floor of the building, and the recovery chamber 15 is provided on the first floor of the building.
  • the waste glass plate Gx drops from the processing chamber 7 into the recovery chamber 15 by releasing the holding by the transport devices 8 and 9 above the corresponding waste ports 14 and 16.
  • the upstream disposal port 14 is provided on the floor surface 17 of the delivery zone 2 in this embodiment.
  • the timing for discarding the waste glass sheet Gx through the upstream waste port 14 is, for example, when the molding zone is started up, when a molding failure occurs in the molding zone, when a cutting failure occurs in the first cutting zone 1, a trouble, or the like. Therefore, the case where the glass sheet G cannot be received in the downstream side process can be mentioned.
  • the downstream waste port 16 is provided on the floor surface 17 of the delivery zone 5c for supplying the glass sheet G to the most downstream portion of the transport path in the transport zone 5, that is, the pallet 11 arranged at the most downstream.
  • the waste glass sheet Gx is discarded on the upstream side of the transport path in the transport zone 5, it becomes difficult to handle the waste glass sheet Gx when trouble occurs after passing through the discard position. Such a problem can be avoided by discarding the waste glass sheet Gx at the most downstream part of the transport path in the transport zone 5 as described above.
  • the timing of discarding the waste glass sheet Gx through the downstream waste port 16 is when the pallet 11 to be loaded cannot be selected.
  • the pallets 11 to be loaded cannot be selected for example, when the glass plate G is determined to be a defective product by the inspection of the inspection device 10, when the glass plates G cannot be accepted in all the pallets 11 due to a trouble or the like. Can be mentioned.
  • the recovery chamber 15 may be a different space separated by a portion corresponding to the upstream waste port 14 and a portion corresponding to the downstream waste port 16, but is the same space in this embodiment. In this way, the recovery chamber 15 corresponding to the two disposal ports 14 and 16 can be shared, and the facility cost can be reduced.
  • a bottomed cylindrical collection container 18 for receiving the falling waste glass plate Gx is arranged directly below each of the upstream waste port 14 and the downstream waste port 16.
  • a nonflammable liquid such as water may be stored inside the recovery container 18 in order to prevent scattering of glass fragments (including glass powder) generated from the waste glass plate Gx broken by the impact of dropping. ..
  • the upstream waste port 14 and the downstream waste port 16 are provided with an opening / closing mechanism (not shown) capable of opening / closing their openings. By doing so, it is possible to physically block the glass powder generated from the waste glass plate Gx from entering the processing chamber 7 from the recovery chamber 15.
  • the opening / closing mechanism may be omitted if there is no problem of invasion of glass powder into the processing chamber 7 such as when the ceiling of the recovery chamber 15 (that is, the floor surface 17) is sufficiently high.
  • the air pressure in the recovery chamber 15 is preferably lower than the air pressure in the processing chamber 7. This makes it difficult for the gas in the recovery chamber 15 to enter the processing chamber 7. Therefore, it becomes difficult for the glass powder in the recovery chamber 15 to enter the processing chamber 7 together with the gas.
  • the air pressure in the upper and lower spaces can be adjusted by, for example, disposing an air blower in the processing chamber 7 and / or disposing a dust collector in the recovery chamber 15.
  • the dust collector is preferably arranged in the collection chamber 15 in the vicinity of the disposal ports 14 and 16.
  • the glass sheet manufacturing apparatus and method according to the second embodiment is different from the first embodiment in that the downstream waste port 16 is located at the most upstream portion of the transport zone 5, that is, The point is provided on the floor surface 17 of the delivery zone 5a for supplying the glass plate G to the most upstream pallet 11.
  • the downstream waste port 16 is provided in the most upstream part of the transport zone 5 as described above, the downstream waste port 16 is provided in the most upstream part of the transport zone 5 as compared with the first embodiment. Can be approached to. Therefore, when the recovery chamber 15 corresponding to the upstream waste port 14 and the downstream waste port 16 is shared, the space of the shared recovery chamber 15 can be reduced. As a result, equipment costs can be reduced. Further, for example, a space such as a clean room 19 separated from the recovery room 15 may be provided in a space formed on the same floor as the recovery room 15 due to the space saving of the recovery room 15. The clean room 19 can store, for example, the pallet 11 in which the glass plate G is stored.
  • the glass sheet manufacturing apparatus and manufacturing method according to the third embodiment are different from those of the first and second embodiments, except that the transport zone 5 has two delivery zones as delivery zones. The point is that only zones 5a and 5b are provided.
  • downstream disposal port 16 is provided, for example, on the floor surface of the upstream delivery zone 5a (or the downstream delivery zone 5b).
  • the glass sheet manufacturing apparatus and manufacturing method according to the fourth embodiment are different from those of the first to third embodiments, except that the transport zone 5 has four delivery zones as delivery zones. The point is that zones 5a to 5d are provided.
  • downstream disposal port 16 is provided, for example, on the floor surface of the delivery zone 5b (or the delivery zone 5c) in the middle portion between the delivery zone 5a in the most upstream portion and the delivery zone 5d in the most downstream portion.
  • the downstream waste port 16 is provided on the floor surface of the delivery zone 5a at the most upstream portion or the delivery zone 5d at the most downstream portion. May be. Further, as illustrated in the first embodiment and the second embodiment, even when the transport zone 5 includes the three delivery zones 5a to 5c, the downstream waste port 16 has the delivery zone 5a in the uppermost stream, It may be provided on the floor surface of the intermediate transfer zone 5b between the most downstream transfer zone 5c.
  • the glass sheet manufacturing apparatus and manufacturing method according to the fifth embodiment are different from those of the first to fourth embodiments, except that the upstream waste port 14 is located on the floor of the first cutting zone 1. This is the point provided on the surface 17. In this way, since the upstream waste port 14 is provided on the floor surface 17 of the first cutting zone 1 located directly below the molding zone, when a glass ribbon (waste glass plate) to be discarded occurs due to the molding zone. Moreover, the glass ribbon can be easily dropped from the molding zone into the collection chamber 15 and discarded.
  • the conveying mode of the glass plate is not particularly limited, and for example, the glass plate G is in the horizontal posture (preferably the horizontal posture) by a conveyor or the like. ) Or an inclined posture.
  • the case where the glass plates are rated based on the inspection result and the glass plates are stacked on the plurality of pallets based on the rating result has been described, but regardless of the inspection result, the number of loaded glass plates is
  • the glass plates may be stacked on a plurality of pallets according to the circumstances.
  • the invention is not limited to a configuration in which a plurality of pallets are stacked, and a plurality of glass plates may be sequentially stacked on one pallet arranged in advance.
  • the loading container for loading the glass plates is not particularly limited.
  • the glass plate G is in a horizontal posture (flat posture). ), A pallet to be loaded with), a grooved case in which the glass plates G can be stored at intervals, or the like.
  • the waste ports are provided on the upstream side and the downstream side of the inspection zone, but the positions and the number of the waste ports are not particularly limited.
  • the waste port on the upstream side of the inspection zone may be omitted.
  • the waste port on the downstream side of the inspection zone may be omitted and the waste port may be provided on the floor surface of the inspection zone.
  • a bottomed cylindrical recovery container as a discarding unit may be disposed in a processing chamber in which a glass plate transport zone or the like is provided, and the glass plate may be dropped into the recovery container for disposal.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
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  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Abstract

This production method for glass sheets comprises: an inspection step in which a plurality of glass sheets G are inspected; a conveying step in which glass sheets G which have been subjected to the inspection step are conveyed; a stacking step in which glass sheets G are removed from the conveying route of the conveying step and stacked on a pallet 11, the production method also comprising a discarding step wherein if a glass sheet to be discarded Gx occurs within the glass sheets G, the glass sheet to be discarded Gx is discarded by being dropped in the inspection zone 4 in which the inspection is performed, or on the conveying route downstream thereof.

Description

ガラス板の製造方法および製造装置Glass plate manufacturing method and manufacturing apparatus
　本発明は、ガラス板の製造方法および製造装置に関する。 The present invention relates to a glass plate manufacturing method and a manufacturing apparatus.
　周知のように、液晶ディスプレイ、有機ＥＬディスプレイなどのフラットパネルディスプレイには、ガラス板が使用される。 As is well known, glass plates are used for flat panel displays such as liquid crystal displays and organic EL displays.
　ガラス板の製造工程では、まず、長尺なガラスリボンを連続的に成形する。成形方法としては、オーバーフローダウンドロー法、スロットダウンドロー法、リドロー法などのダウンドロー法や、フロート法が広く採用されている。 In the glass plate manufacturing process, first, a long glass ribbon is continuously formed. As a forming method, a downdraw method such as an overflow downdraw method, a slot downdraw method, a redraw method, or a float method is widely adopted.
　次に、ガラスリボンを所定の長さ毎に幅方向に切断し、ガラスリボンからガラス板を切り出す。 Next, the glass ribbon is cut in the width direction for each predetermined length, and the glass plate is cut out from the glass ribbon.
　その後、例えば、切り出されたガラス板の幅方向両端部を更に切断したり、検査を実施したりするなどの各種工程を経て、ガラス板が作製される。 After that, for example, the glass plate is manufactured through various processes such as further cutting both widthwise ends of the cut glass plate and performing an inspection.
　このように作製された複数のガラス板は、搬送装置により所定位置まで搬送されると共に、積載装置により積載容器（例えば、パレットやケースなど）に収容された後、積載容器単位で次工程（納入先の工程も含む）に搬出されるのが一般的である（例えば、特許文献１を参照）。 The plurality of glass plates manufactured in this way are conveyed to a predetermined position by a conveying device and stored in a loading container (for example, a pallet or a case) by a loading device, and then the next process (delivery) in units of loading container. It is generally carried out to the previous step) (for example, see Patent Document 1).
特開２０１０－３０７４４号公報JP, 2010-30744, A
　ところで、検査工程でガラス板が品質基準を満たさないと判定された場合、そのガラス板を不良品として廃棄するのが一般的である。また、ガラス板の品質に関わらず、積載装置や積載容器などの下流側の工程がトラブルなどで受け入れ不能な場合には、一時的にガラス板を廃棄する必要が生じることもある。すなわち、検査工程でガラス板が品質基準を満たすと判定された場合でも、その良品ガラス板を廃棄せざるを得ないことがある。 By the way, if the glass plate is judged not to meet the quality standards in the inspection process, it is common to discard the glass plate as a defective product. Further, regardless of the quality of the glass plate, when the downstream process such as the loading device or the loading container cannot be accepted due to a trouble or the like, it may be necessary to temporarily discard the glass plate. That is, even when it is determined in the inspection process that the glass plate satisfies the quality standard, the good glass plate may be forced to be discarded.
　このように品質やその他の理由で廃棄されるガラス板（以下、単に廃棄ガラス板という）は、廃棄の必要がない良品のガラス板と同様に、搬送装置により所定位置まで搬送されると共に、積載装置により廃棄用の積載容器（例えば、パレットやケースなど）に積載して収容し、廃棄用の積載容器単位で回収（廃棄）される場合がある。 In this way, a glass plate that is discarded due to quality or other reasons (hereinafter simply referred to as a waste glass plate) is transported to a predetermined position by the transport device and loaded in the same manner as a non-defective glass plate that does not need to be discarded. There is a case where the device is loaded and stored in a disposal loading container (for example, a pallet or a case), and is collected (discarded) in the disposal loading container unit.
　しかしながら、このように廃棄用の積載容器に廃棄ガラス板を収納して回収する場合、廃棄ガラス板を積載装置で廃棄用の積載容器へ積載する積載工程が別途必要になる。すなわち、廃棄ガラス板に対して、廃棄されない良品のガラス板と同等の高度な積載工程が必要になることから、廃棄作業が非常に煩雑になり無駄が多くなる。また、廃棄ガラス板を廃棄用の積載容器に積載する積載装置などの専用設備が必要になるため、設備コストの高騰も避けられない。 However, when the waste glass plates are stored and collected in the waste loading container in this way, a separate loading process is required to load the waste glass plates into the discard loading container with the loading device. That is, since a high-level loading process equivalent to that of a non-defective non-discarded glass plate is required for the discarded glass plate, the disposal work becomes very complicated and wasteful. In addition, since special equipment such as a loading device for loading the waste glass plate on the loading container for disposal is required, it is inevitable that the equipment cost will rise.
　本発明は、設備コストの高騰を招くことなく、廃棄ガラス板を簡単かつ確実に廃棄することを課題とする。 The present invention aims to easily and surely dispose of a waste glass plate without causing a rise in equipment costs.
　上記の課題を解決するために創案された本発明に係るガラス板の製造方法は、複数のガラス板を検査する検査工程と、検査工程を経たガラス板を搬送する搬送工程と、搬送工程の搬送経路上からガラス板を取り出して積載容器に積載する積載工程と、を備えたガラス板の製造方法であって、ガラス板の中に廃棄ガラス板が生じた場合に、検査工程を実施する検査ゾーン又はその下流側の搬送経路上で廃棄ガラス板を落下させて廃棄する第一廃棄工程を備えていることを特徴とする。ここで、「廃棄ガラス板」とは、廃棄が必要になったガラス板を意味し、品質基準を満たさない不良品ガラス板のみならず、工程トラブルなどの品質基準以外の理由で廃棄が必要になったガラス板（例えば、品質基準を満たす良品ガラス板）を含む場合もある。上記の構成によれば、検査工程を実施する検査ゾーン又はその下流側の搬送経路上で廃棄ガラス板を落下させるだけで、廃棄ガラス板を簡単かつ確実に廃棄できる。そのため、廃棄ガラス板を廃棄用の積載容器にわざわざ積載する必要がなく、更には廃棄用の積載容器に廃棄ガラス板を積載するための設備も不要となる。 The manufacturing method of the glass plate according to the present invention, which was conceived to solve the above problems, an inspection step of inspecting a plurality of glass plates, a transfer step of transferring the glass plates that have undergone the inspection step, and a transfer of the transfer step. A method of manufacturing a glass plate, comprising a loading process of taking out a glass plate from a path and loading it in a loading container, wherein an inspection zone for carrying out an inspection process when a waste glass plate occurs in the glass plate Alternatively, the method is characterized by including a first discarding step of dropping and discarding a waste glass plate on a transport path on the downstream side thereof. Here, "disposable glass plate" means a glass plate that needs to be discarded. Not only defective glass plates that do not meet the quality standard but also need to be discarded for reasons other than the quality standard such as process trouble. In some cases, it includes a glass plate that has become defective (for example, a non-defective glass plate that meets quality standards). According to the above configuration, the waste glass plate can be simply and surely discarded simply by dropping the waste glass plate on the inspection zone where the inspection process is performed or on the transport path on the downstream side thereof. Therefore, it is not necessary to bother to load the waste glass plate on the waste loading container, and further, the facility for loading the waste glass plate on the waste loading container is also unnecessary.
　上記の構成において、搬送工程では、ガラス板を縦姿勢で表面に沿って横方向に搬送することが好ましい。このようにすれば、搬送時にガラス板が空気抵抗を受けにくくなるため、ガラス板の搬送姿勢が安定する。更に、ガラス板が廃棄ガラス板である場合には、縦姿勢のガラス板を落下させることになるため、落下時にもガラス板が空気抵抗を受けにくく、ガラス板の落下姿勢が安定する。 In the above configuration, it is preferable that the glass plate be conveyed in a horizontal position along the surface in a vertical position in the transfer step. With this configuration, the glass plate is less likely to be subjected to air resistance during transportation, so that the transportation posture of the glass plate is stabilized. Further, when the glass plate is a waste glass plate, the glass plate in the vertical position is dropped, so that the glass plate is less likely to receive air resistance even when it is dropped, and the falling position of the glass plate is stable.
　上記の構成において、第一廃棄工程では、廃棄ガラス板を搬送経路の階下に設けられた回収室内に落下させて廃棄することが好ましい。このようにすれば、回収室内で発生した廃棄ガラス板に由来するガラス粉が、ガラス板の搬送等が実施されるエリアに侵入しにくくなる。 In the above configuration, in the first disposal step, it is preferable that the waste glass plate is dropped into the collection chamber provided below the transfer path and discarded. With this configuration, glass powder originating in the waste glass plate generated in the collection chamber is unlikely to enter the area where the glass plate is transported or the like.
　上記の構成において、検査工程の前工程として、ガラスリボンを成形する成形工程と、ガラスリボンを幅方向に切断してガラス板を得る切断工程と、を更に備えると共に、検査工程の前工程で廃棄ガラス板が生じた場合に、検査ゾーンの上流側で廃棄ガラス板を落下させて廃棄する第二廃棄工程を更に備え、第二廃棄工程では、第一廃棄工程と同じ回収室内に廃棄ガラス板を落下させて廃棄することが好ましい。このようにすれば、第一廃棄工程および第二廃棄工程で共通の回収室を使用できるため、回収室を別々に設ける場合に比べて設備コストを削減できる。 In the above configuration, as a pre-process of the inspection process, a forming process of forming a glass ribbon and a cutting process of cutting the glass ribbon in the width direction to obtain a glass plate are further provided, and the process is discarded in the pre-process of the inspection process. When a glass plate is generated, it further comprises a second disposal process of dropping and discarding the waste glass plate on the upstream side of the inspection zone. In the second disposal process, the waste glass plate is placed in the same collection chamber as the first disposal process. It is preferred to drop and discard. In this way, since the common recovery chamber can be used in the first disposal process and the second disposal process, the equipment cost can be reduced as compared with the case where the recovery chambers are provided separately.
　このように第一廃棄工程と第二廃棄工程で同じ回収室を使用する場合、第一廃棄工程では、検査ゾーンの下流側の搬送経路の最上流部でガラス板を落下させて廃棄することが好ましい。このようにすれば、第一廃棄工程で廃棄ガラス板を落下させる位置と、第二廃棄工程で廃棄ガラス板を落下させる位置とを近づけることができるため、共通化した回収室のスペースを小さくできる。したがって、設備コストを更に削減できる。 When the same recovery chamber is used in the first disposal process and the second disposal process as described above, in the first disposal process, the glass plate may be dropped and discarded at the most upstream part of the transportation route on the downstream side of the inspection zone. preferable. With this configuration, the position where the waste glass plate is dropped in the first disposal process and the position where the waste glass plate is dropped in the second disposal process can be close to each other, so that the space of the common recovery chamber can be reduced. .. Therefore, the equipment cost can be further reduced.
　上記の課題を解決するために創案された本発明に係るガラス板の製造装置は、複数のガラス板を検査する検査装置と、検査装置の検査を経たガラス板を搬送する搬送装置と、搬送装置の搬送経路上からガラス板を取り出して積載容器に積載する積載装置と、を備えたガラス板の製造装置であって、検査装置が配置された検査ゾーン又はその下流側の前記搬送経路上で、ガラス板の中に含まれる廃棄ガラス板を落下させて廃棄する廃棄部を備えていることを特徴とする。このようにすれば、検査装置が配置された検査ゾーン又はその下流側の搬送経路上で廃棄ガラス板を廃棄部に落下させるだけで、廃棄ガラス板を簡単かつ確実に廃棄できる。そのため、廃棄ガラス板を廃棄用の積載容器にわざわざ積載する必要がなく、更には廃棄用の積載容器に廃棄ガラス板を積載するための設備も不要となる。 A glass plate manufacturing apparatus according to the present invention, which was conceived to solve the above-mentioned problems, includes an inspection device for inspecting a plurality of glass plates, a conveying device for conveying glass plates that have undergone inspection by the inspection device, and a conveying device. In the apparatus for manufacturing a glass plate having a loading device for taking out a glass plate from the transport path and loading it on a loading container, on the transport path on the downstream side of the inspection zone in which the inspection device is arranged, It is characterized by including a discarding unit for dropping and discarding a waste glass plate contained in the glass plate. With this configuration, the waste glass plate can be simply and surely discarded simply by dropping the waste glass plate to the discarding section on the inspection zone where the inspection device is arranged or on the transport path on the downstream side thereof. Therefore, it is not necessary to bother to load the waste glass plate on the waste loading container, and further, the facility for loading the waste glass plate on the waste loading container is also unnecessary.
　本発明によれば、設備コストの高騰を招くことなく、廃棄ガラス板を簡単かつ確実に廃棄できる。 According to the present invention, it is possible to simply and surely dispose of the waste glass plate without increasing the facility cost.
第一実施形態に係るガラス板の製造装置を示す平面図である。It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 1st embodiment. 図１のＡ－Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG. 1. 第二実施形態に係るガラス板の製造装置を示す平面図である。It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 2nd embodiment. 図３のＢ－Ｂ断面図である。FIG. 4 is a sectional view taken along line BB of FIG. 3. 第三実施形態に係るガラス板の製造装置を示す平面図である。It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 3rd embodiment. 第四実施形態に係るガラス板の製造装置を示す平面図である。It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 4th embodiment. 第五実施形態に係るガラス板の製造装置を示す平面図である。It is a top view which shows the manufacturing apparatus of the glass plate which concerns on 5th embodiment.
　以下、本発明に係る実施形態を添付図面に基づいて説明する。 Embodiments according to the present invention will be described below with reference to the accompanying drawings.
（第一実施形態）
　図１および図２に示すように、第一実施形態に係るガラス板の製造方法は、成形工程と、第一切断工程と、受渡工程と、第二切断工程と、検査工程と、搬送工程と、積載工程と、を備えている。すなわち、第一実施形態に係るガラス板の製造装置は、成形ゾーン（図示省略）と、第一切断ゾーン１と、受渡ゾーン２と、第二切断ゾーン３と、検査ゾーン４と、搬送ゾーン５と、積載ゾーン６と、を備えている。なお、各ゾーン１～６は、外部からの汚染物質をある程度遮断できる空間を区画形成する処理室７（例えば、クリーンルーム）内に設けられている。 (First embodiment)
As shown in FIGS. 1 and 2, the glass sheet manufacturing method according to the first embodiment includes a forming step, a first cutting step, a delivery step, a second cutting step, an inspection step, and a conveying step. And a loading process. That is, the glass sheet manufacturing apparatus according to the first embodiment includes a molding zone (not shown), a first cutting zone 1, a delivery zone 2, a second cutting zone 3, an inspection zone 4, and a transport zone 5. And a loading zone 6. The zones 1 to 6 are provided in a processing chamber 7 (for example, a clean room) that divides and forms a space capable of blocking contaminants from the outside to some extent.
　成形ゾーンでは、オーバーフローダウンドロー法によって縦姿勢のガラスリボン（図示省略）を連続成形する成形工程が実施される。成形ゾーンは、第一切断ゾーン１の上方に設けられた上下方向に延びる空間であって、溶融ガラスからガラスリボンを成形する第一ゾーンと、ガラスリボンを徐冷（アニール）する第二ゾーンと、ガラスリボンを冷却する第三ゾーンと、を上方から順に備えている。なお、成形方法は、オーバーフローダウンドロー法に限定されるものではなく、例えば、スロットダウンドロー法やリドロー法などの他のダウンドロー法や、フロート法などであってもよい。なお、フロート法の場合、成形ゾーンは、第一切断ゾーン１の上方でなく、第一切断ゾーン１の横に設けられる。 In the molding zone, a molding process of continuously molding a vertical glass ribbon (not shown) by the overflow downdraw method is carried out. The molding zone is a space that is provided above the first cutting zone 1 and extends in the vertical direction, and includes a first zone for molding a glass ribbon from molten glass and a second zone for gradually cooling (annealing) the glass ribbon. , A third zone for cooling the glass ribbon, and the third zone in order from the top. The molding method is not limited to the overflow downdraw method, and may be another downdraw method such as a slot downdraw method or a redraw method, or a float method. In addition, in the case of the float method, the molding zone is provided on the side of the first cutting zone 1 rather than above the first cutting zone 1.
　第一切断ゾーン１では、ガラスリボンを縦姿勢のまま所定長さで幅方向に切断することでガラス板Ｇを得る第一切断工程が実施される。第一切断ゾーン１では、切断装置（図示省略）によって、ガラスリボンの所定位置で幅方向にスクライブ線を形成した後、そのスクライブ線に沿って曲げ応力を作用させて割断する。なお、ガラスリボンの切断方法は、曲げ応力による割断に限定されるものではなく、例えば、レーザー割断やレーザー溶断などであってもよい。 In the first cutting zone 1, a first cutting process is performed in which the glass ribbon G is cut in a widthwise direction with a predetermined length while keeping the glass ribbon in a vertical posture. In the first cutting zone 1, after a scribe line is formed in a width direction at a predetermined position of the glass ribbon by a cutting device (not shown), bending stress is applied along the scribe line to cut the scribe line. The method for cutting the glass ribbon is not limited to cutting by bending stress, and may be laser cutting or laser fusing, for example.
　ガラス板Ｇは、例えば、フラットパネルディスプレイの基板として利用される。ガラス板Ｇの板厚は、例えば、０．２ｍｍ～１０ｍｍであり、ガラス板Ｇのサイズは、例えば、７００ｍｍ×７００ｍｍ～３０００ｍｍ×３０００ｍｍである。 The glass plate G is used as a substrate of a flat panel display, for example. The plate thickness of the glass plate G is, for example, 0.2 mm to 10 mm, and the size of the glass plate G is, for example, 700 mm × 700 mm to 3000 mm × 3000 mm.
　受渡ゾーン２では、異なる搬送装置の間でガラス板Ｇを受け渡す受渡工程が実施される。本実施形態では、第一切断ゾーン１から受渡ゾーン２にガラス板Ｇを搬送する搬送装置８と、受渡ゾーン２の下流側のゾーンにガラス板Ｇを搬送する搬送装置９との間で、ガラス板Ｇが受け渡される。なお、第一切断ゾーン１から積載ゾーン６に至るまでの間に、異なる搬送装置の間でガラス板Ｇを受け渡すための受渡ゾーンを複数設けてもよい。 In the delivery zone 2, the delivery process of delivering the glass sheet G between different transport devices is carried out. In the present embodiment, the glass between the transport device 8 that transports the glass sheet G from the first cutting zone 1 to the delivery zone 2 and the transport device 9 that transports the glass sheet G to the zone downstream of the delivery zone 2 The board G is delivered. In addition, between the first cutting zone 1 and the loading zone 6, a plurality of delivery zones for delivering the glass sheet G between different transporting devices may be provided.
　搬送装置８は、縦姿勢のガラス板Ｇの幅方向両端部を保持した状態で、ガラス板Ｇの板厚方向に沿ってガラス板Ｇを搬送する。一方、搬送装置９は、縦姿勢のガラス板Ｇの上端部を保持して吊り下げた状態で、ガラス板Ｇの表面に沿って横方向（好ましくは水平方向）にガラス板Ｇを搬送する。すなわち、本実施形態では、受渡ゾーン２において、搬送装置８，９が切り替えられると共に、ガラス板Ｇの搬送方向も変化する。なお、搬送装置８，９は、搬送経路上の所定範囲を往復移動可能になっている。搬送装置８，９によるガラス板Ｇの保持方法としては、例えば、ガラス板Ｇを吸着したり、挟持（チャック）したりすることが挙げられる。搬送装置８，９によるガラス板Ｇの保持態様や搬送方向は特に限定されるものではなく、適宜変更できる。 The transfer device 8 transfers the glass plate G along the plate thickness direction of the glass plate G while holding both end portions in the width direction of the glass plate G in the vertical posture. On the other hand, the transporting device 9 transports the glass plate G in the horizontal direction (preferably in the horizontal direction) along the surface of the glass plate G while holding the upper end of the glass plate G in a vertical posture and suspending it. That is, in the present embodiment, the transport devices 8 and 9 are switched in the delivery zone 2, and the transport direction of the glass sheet G also changes. The transfer devices 8 and 9 can reciprocate within a predetermined range on the transfer path. As a method of holding the glass plate G by the transport devices 8 and 9, for example, the glass plate G may be sucked or pinched (chucked). The manner of holding the glass plate G by the transfer devices 8 and 9 and the transfer direction are not particularly limited and can be appropriately changed.
　第二切断ゾーン３では、ガラス板Ｇの幅方向両端部を上下方向に切断して除去する第二切断工程が実施される。第二切断ゾーン３では、切断装置（図示省略）によって、ガラス板Ｇの所定位置で上下方向にスクライブ線Ｓを形成した後、スクライブ線Ｓに沿って曲げ応力を作用させてガラス板Ｇを割断する。なお、除去されるガラス板Ｇの幅方向両端部には、幅方向中央部よりも相対的に厚さが大きくなる耳部が含まれる場合がある。また、ガラスリボンの切断方法は、曲げ応力による割断に限定されるものではなく、例えば、レーザー割断やレーザー溶断などであってもよい。 In the second cutting zone 3, a second cutting step is performed in which both widthwise ends of the glass sheet G are vertically cut and removed. In the second cutting zone 3, after a scribe line S is formed in a vertical direction at a predetermined position of the glass plate G by a cutting device (not shown), bending stress is applied along the scribe line S to cut the glass plate G. To do. The widthwise ends of the glass plate G to be removed may include ears that are relatively thicker than the widthwise center. Further, the method of cutting the glass ribbon is not limited to the cutting by bending stress, and may be, for example, laser cutting or laser fusing.
　検査ゾーン４では、複数のガラス板Ｇを連続して検査する検査工程が実施される。本実施形態では、検査ゾーン４では、一又は複数の検査装置１０によって、ガラス板Ｇの偏肉（板厚）を測定したり、ガラス板Ｇの筋（脈理）を測定したり、ガラス板Ｇに含まれる欠陥の種類（例えば、泡、異物など）・位置（座標）・大きさを測定したりする。検査装置１０の検査結果は、ガラス板Ｇの識別情報と共にデータベースに保存される。なお、検査ゾーン４における検査内容は、特に限定されるものではなく、適宜変更できる。また、検査ゾーン４の下流側かつ搬送ゾーン５の上流側に、マーキング工程を実施するためのマーキングゾーンを設けてもよい。マーキングゾーンでは、例えば、ガラス板Ｇに対して二次元コードや一次元コードが印字される。印字されたコードは、ガラス板Ｇの識別情報を示し、検査結果等を含んでもよい。 In the inspection zone 4, an inspection process for continuously inspecting a plurality of glass plates G is carried out. In this embodiment, in the inspection zone 4, the uneven thickness (plate thickness) of the glass plate G, the streak (stria) of the glass plate G, or the glass plate is measured by one or a plurality of inspection devices 10. The type (for example, bubble, foreign substance, etc.), position (coordinates), and size of the defect included in G are measured. The inspection result of the inspection device 10 is stored in the database together with the identification information of the glass plate G. The inspection content in the inspection zone 4 is not particularly limited and can be changed as appropriate. Further, a marking zone for carrying out the marking step may be provided on the downstream side of the inspection zone 4 and the upstream side of the transport zone 5. In the marking zone, for example, a two-dimensional code or a one-dimensional code is printed on the glass plate G. The printed code indicates the identification information of the glass plate G, and may include the inspection result and the like.
　搬送ゾーン５では、搬送装置９によって、検査を経たガラス板Ｇを搬送する搬送工程が実施される。なお、搬送ゾーン５では、搬送装置９によって、縦姿勢のガラス板Ｇ上端部が保持された状態で、ガラス板Ｇがその表面に沿って横方向に搬送される。 In the transfer zone 5, the transfer device 9 performs a transfer step of transferring the glass sheet G that has been inspected. In the transport zone 5, the transport device 9 transports the glass sheet G in the horizontal direction along the surface of the glass sheet G while holding the upper end of the glass sheet G in the vertical position.
　積載ゾーン６では、搬送ゾーン５の各受渡ゾーン５ａ～５ｃから取り出されたガラス板Ｇを複数のパレット１１に積み分けて積載する積載工程が実施される。本実施形態では、積載ゾーン６は、搬送ゾーン５における搬送経路に沿って複数のゾーン６ａ～６ｃに分割されている。図示例では、搬送ゾーン５には、３つの受渡ゾーン５ａ～５ｃが設けられおり、積載ゾーン６には、各受渡ゾーン５ａ～５ｃに対応する３つの積載ゾーン６ａ～６ｃが設けられている。なお、受渡ゾーンおよび積載ゾーンの数は、特に限定されない。 In the loading zone 6, a loading process is performed in which the glass sheets G taken out from the delivery zones 5a to 5c of the transport zone 5 are loaded on a plurality of pallets 11 separately. In this embodiment, the stacking zone 6 is divided into a plurality of zones 6a to 6c along the transport path in the transport zone 5. In the illustrated example, the transfer zone 5 is provided with three delivery zones 5a to 5c, and the loading zone 6 is provided with three loading zones 6a to 6c corresponding to the delivery zones 5a to 5c. The numbers of delivery zones and loading zones are not particularly limited.
　各積載ゾーン６ａ～６ｃには、パレット１１と、パレット１１にガラス板Ｇを積載するための専用の積載装置１２とが配置されている。各積載装置１２は、搬送ゾーン５の各受渡ゾーン５ａ～５ｃと、各積載ゾーン６ａ～６ｃとの間を往復移動可能となっている。各積載装置１２は、縦姿勢のガラス板Ｇの上端部を保持（例えば、吸着又は挟持）した状態で、ガラス板Ｇをその板厚方向に沿って搬送すると共に、パレット１１にガラス板Ｇを縦姿勢で重ねて積載する。この際、パレット１１上のガラス板Ｇの相互間には合紙などの保護シート（図示省略）が介装される。なお、積載装置１２によるガラス板Ｇの保持態様や搬送方向は特に限定されるものではなく、適宜変更できる。 In each of the loading zones 6a to 6c, a pallet 11 and a dedicated loading device 12 for loading the glass sheets G on the pallet 11 are arranged. Each loading device 12 is capable of reciprocating between each delivery zone 5a to 5c of the transport zone 5 and each loading zone 6a to 6c. Each loading device 12 conveys the glass plate G along the plate thickness direction while holding the upper end portion of the glass plate G in the vertical posture (for example, sucking or sandwiching the glass plate G), and also places the glass plate G on the pallet 11. Stack vertically and stack. At this time, a protective sheet (not shown) such as interleaving paper is interposed between the glass sheets G on the pallet 11. The manner of holding the glass plate G by the stacking device 12 and the conveying direction are not particularly limited and can be appropriately changed.
　第一実施形態に係るガラス板の製造方法は、検査装置１０による検査結果に基づいて、それぞれのガラス板Ｇの格付けを行う格付け工程を更に備えている。ガラス板Ｇの格付けは、検査結果に基づいて良品と判定されたガラス板Ｇを品質に応じて複数種に分類するものである。上位の格に属するガラス板Ｇは下位の格に属するガラス板Ｇよりも品質がよく、同一の格に属するガラス板Ｇに対しては実質的に同じ後加工を実施できる。 The glass plate manufacturing method according to the first embodiment further includes a rating step of rating each glass plate G based on the inspection result by the inspection device 10. The rating of the glass plate G is to classify the glass plate G determined to be non-defective based on the inspection result into a plurality of types according to the quality. The glass plate G belonging to the higher rank has a higher quality than the glass plate G belonging to the lower rank, and substantially the same post-processing can be performed on the glass plates G belonging to the same rank.
　本実施形態では、検査装置１０の検査結果は制御部１３に入力され、制御部１３が入力された検査結果に基づいて各ガラス板Ｇの格付けを自動で判定する。なお、作業者が入力された検査結果に基づいて各ガラス板Ｇの格付けを判定してもよい。 In the present embodiment, the inspection result of the inspection device 10 is input to the control unit 13, and the control unit 13 automatically determines the rating of each glass plate G based on the input inspection result. The operator may determine the rating of each glass sheet G based on the input inspection result.
　制御部１３は、格付けの結果に基づいてガラス板Ｇを積載するパレット１１を自動で選択する。なお、作業者が格付けの結果に基づいてガラス板Ｇを積載するパレット１１を選択してもよい。 The control unit 13 automatically selects the pallet 11 on which the glass sheets G are loaded based on the rating result. The worker may select the pallet 11 on which the glass sheets G are loaded based on the rating result.
　詳細には、各パレット１１には、積載すべきガラス板Ｇの格が事前に設定されており、制御部１３は、格付けの結果と、パレット１１に事前に設定された格とが一致するように、ガラス板Ｇを積載するパレット１１を選択する。本実施形態では、制御が容易であることから、複数のパレット１１の配列態様は、上流側から順に格が下がる態様又は上流側から順に格が上がる態様とされている。この配列態様には、同格のパレット１１が複数隣接する場合も含む。そして、搬送装置９および積載装置１２は、制御部１３によって選択されたパレット１１にガラス板Ｇを積載するように動作する。例えば、制御部１３が、格付けの結果に基づいて積載ゾーン６ａに配置されたパレット１１を選択した場合、搬送装置９が受渡ゾーン５ａまでガラス板Ｇを搬送した後、積載装置１２が受渡ゾーン５ａでガラス板Ｇを受け取って積載ゾーン６ａに配置されたパレット１１まで搬送する。このようにすれば、それぞれのパレット１１には、検査工程の結果を反映した格付けの結果に基づいて、同等の品質のガラス板Ｇが積載される。したがって、同一のパレット１１に収納されているガラス板Ｇに対しては、実質的に同じ条件で後加工を効率よく実施することが可能となる。 In detail, each pallet 11 has a preset rating of the glass sheets G to be loaded, and the control unit 13 ensures that the rating result matches the preset rating of the pallet 11. First, the pallet 11 on which the glass sheets G are loaded is selected. In the present embodiment, since the control is easy, the arrangement mode of the plurality of pallets 11 is a mode in which the ranks are lowered from the upstream side or a rank is increased in the order from the upstream side. This arrangement mode also includes a case where a plurality of pallets 11 having the same rating are adjacent to each other. Then, the transport device 9 and the loading device 12 operate to load the glass sheets G on the pallet 11 selected by the control unit 13. For example, when the control unit 13 selects the pallet 11 arranged in the loading zone 6a based on the rating result, after the transport device 9 transports the glass sheet G to the delivery zone 5a, the loading device 12 transfers the glass plate G to the delivery zone 5a. Then, the glass plate G is received and conveyed to the pallet 11 arranged in the stacking zone 6a. In this way, each pallet 11 is loaded with glass sheets G of equivalent quality based on the result of the rating that reflects the result of the inspection process. Therefore, the post-processing can be efficiently performed on the glass sheets G stored in the same pallet 11 under substantially the same conditions.
　ただし、搬送装置９のタクトタイムと、積載装置１２のタクトタイムとが異なるときには、制御部１３が格付けの結果に基づいて選択したパレット１１において、先行のガラス板Ｇの積載が終了しておらず、後続のガラス板Ｇを積載できない場合がある。また同様に、積載装置１２などにトラブルが発生すると、制御部１３が格付けの結果に基づいて選択したパレット１１にガラス板Ｇを積載できない場合がある。 However, when the takt time of the transport device 9 and the takt time of the stacking device 12 are different from each other, the loading of the preceding glass sheet G is not completed in the pallet 11 selected by the control unit 13 based on the result of the rating. In some cases, the succeeding glass plate G cannot be loaded. Similarly, when a trouble occurs in the loading device 12 or the like, the glass plate G may not be loaded on the pallet 11 selected by the control unit 13 based on the rating result.
　このように選択されたパレット１１が受け入れ不能な場合には、制御部１３は、下位の格を積載すべき別のパレット１１を再選択する。この場合、制御部１３は、上位の格が下位の格と互換性があることを事前に確認する。ここで、上位の格において良品ガラス板を採取する領域に、下位の格において良品ガラス板を採取する領域が含まれている場合に、上位の格が下位の格と互換性があると判定する。具体的には、例えば、上位の格がガラス板Ｇから一枚の大きな良品ガラス板を採取する対象であり、下位の格がガラス板Ｇの右半分を良品ガラス板として採取する対象である場合などである。そして、互換性が確認された後、搬送装置９および積載装置１２は、制御部１３によって再選択された下位の格のパレット１１にガラス板Ｇを積載するように動作する。このようにすれば、特定のパレット１１が受け入れ不能な場合でも、その特定のパレット１１よりも下位の格のパレット１１にガラス板Ｇが積載されるため、ガラス板Ｇを廃棄することなく有効活用できる。 If the pallet 11 thus selected is unacceptable, the control unit 13 reselects another pallet 11 on which a lower case should be loaded. In this case, the control unit 13 confirms in advance that the upper case is compatible with the lower case. Here, when the area for collecting a good glass plate in the upper case includes the area for collecting a good glass sheet in the lower case, it is determined that the upper case is compatible with the lower case. .. Specifically, for example, when the upper rank is a target for collecting one large non-defective glass plate from the glass plate G, and the lower rank is for collecting the right half of the glass plate G as the non-defective glass plate. And so on. Then, after the compatibility is confirmed, the transport device 9 and the loading device 12 operate to load the glass sheets G on the pallet 11 of the lower rank reselected by the control unit 13. In this way, even if the specific pallet 11 is unacceptable, the glass plate G is loaded on the pallet 11 of a lower rank than the specific pallet 11, so that the glass plate G can be effectively used without being discarded. it can.
　第一実施形態に係るガラス板の製造方法は、ガラス板Ｇの中に廃棄する廃棄ガラス板Ｇｘ（良品ガラス板と不良品ガラス板の両方を含む）が生じた場合に、その廃棄ガラス板Ｇｘを廃棄する廃棄工程を更に備えている。本実施形態では、廃棄工程は、検査ゾーン４又はその下流側かつ積載ゾーン６の上流側（第一廃棄工程）と、検査ゾーン４の上流側（第二廃棄工程）との２箇所で実施される。なお、検査ゾーン４の上流側における廃棄工程は、省略してもよい。 In the method for manufacturing a glass plate according to the first embodiment, when a waste glass plate Gx to be discarded (including both a good glass plate and a defective glass plate) occurs in the glass plate G, the waste glass plate Gx. The method further includes a discarding step of discarding. In the present embodiment, the disposal process is carried out at two locations, that is, the inspection zone 4 or the downstream side thereof and the upstream side of the loading zone 6 (first disposal process) and the upstream side of the inspection zone 4 (second disposal process). It The discarding process on the upstream side of the inspection zone 4 may be omitted.
　検査ゾーン４の上流側の廃棄工程では、上流廃棄口１４を通じて処理室７の階下に設けられた回収室（廃棄部）１５に廃棄ガラス板Ｇｘを落下させることにより廃棄する。一方、検査ゾーン４又はその下流側かつ積載ゾーン６の上流側の廃棄工程では、下流廃棄口１６を通じて処理室７の階下に設けられた回収室１５に廃棄ガラス板Ｇｘを落下させことにより廃棄する。なお、処理室７と回収室１５とは、フロア面（処理室７の床面）１７によって分離された空間である。例えば、処理室７は建物の二階部分に設けられ、回収室１５は建物の一階部分に設けられる。 In the disposal process on the upstream side of the inspection zone 4, the waste glass plate Gx is discarded through the upstream disposal port 14 into the collection chamber (disposal part) 15 provided below the processing chamber 7. On the other hand, in the disposal process on the inspection zone 4 or on the downstream side of the inspection zone 4 and on the upstream side of the loading zone 6, the waste glass sheet Gx is dropped by dropping it into the recovery chamber 15 provided below the processing chamber 7 through the downstream disposal port 16. .. The processing chamber 7 and the recovery chamber 15 are spaces separated by a floor surface (floor surface of the processing chamber 7) 17. For example, the processing chamber 7 is provided on the second floor of the building, and the recovery chamber 15 is provided on the first floor of the building.
　廃棄ガラス板Ｇｘは、対応する廃棄口１４，１６の上方で搬送装置８，９による保持を解除することで、処理室７から回収室１５内に落下する。 The waste glass plate Gx drops from the processing chamber 7 into the recovery chamber 15 by releasing the holding by the transport devices 8 and 9 above the corresponding waste ports 14 and 16.
　上流廃棄口１４は、本実施形態では、受渡ゾーン２のフロア面１７に設けられている。 The upstream disposal port 14 is provided on the floor surface 17 of the delivery zone 2 in this embodiment.
　上流廃棄口１４を通じて廃棄ガラス板Ｇｘの廃棄を行うタイミングは、例えば、成形ゾーンの立ち上げ時、成形ゾーンで成形不良が生じたとき、第一切断ゾーン１で切断不良が生じたとき、トラブルなどにより下流側工程でガラス板Ｇが受け入れ不能なときなどが挙げられる。 The timing for discarding the waste glass sheet Gx through the upstream waste port 14 is, for example, when the molding zone is started up, when a molding failure occurs in the molding zone, when a cutting failure occurs in the first cutting zone 1, a trouble, or the like. Therefore, the case where the glass sheet G cannot be received in the downstream side process can be mentioned.
　下流廃棄口１６は、本実施形態では、搬送ゾーン５における搬送経路の最下流部、すなわち、最下流に配置されたパレット１１にガラス板Ｇを供給するための受渡ゾーン５ｃのフロア面１７に設けられている。搬送ゾーン５における搬送経路の上流側で廃棄ガラス板Ｇｘの廃棄を行うと、廃棄位置を通過後にトラブルが発生した場合に廃棄ガラス板Ｇｘの取り扱いが困難になる。このような問題は、上記のように搬送ゾーン５における搬送経路の最下流部で廃棄ガラス板Ｇｘの廃棄を行うことにより回避できる。 In the present embodiment, the downstream waste port 16 is provided on the floor surface 17 of the delivery zone 5c for supplying the glass sheet G to the most downstream portion of the transport path in the transport zone 5, that is, the pallet 11 arranged at the most downstream. Has been. When the waste glass sheet Gx is discarded on the upstream side of the transport path in the transport zone 5, it becomes difficult to handle the waste glass sheet Gx when trouble occurs after passing through the discard position. Such a problem can be avoided by discarding the waste glass sheet Gx at the most downstream part of the transport path in the transport zone 5 as described above.
　下流廃棄口１６を通じて廃棄ガラス板Ｇｘの廃棄を行うタイミングは、積載すべきパレット１１を選択できないときである。積載すべきパレット１１を選択できないときとしては、例えば、検査装置１０の検査でガラス板Ｇが不良品と判定されたとき、トラブルなどにより全てのパレット１１においてガラス板Ｇが受け入れ不能なときなどが挙げられる。 The timing of discarding the waste glass sheet Gx through the downstream waste port 16 is when the pallet 11 to be loaded cannot be selected. When the pallets 11 to be loaded cannot be selected, for example, when the glass plate G is determined to be a defective product by the inspection of the inspection device 10, when the glass plates G cannot be accepted in all the pallets 11 due to a trouble or the like. Can be mentioned.
　回収室１５は、上流廃棄口１４に対応する部分と、下流廃棄口１６に対応する部分で分離された異なる空間であってもよいが、本実施形態では同じ空間である。このようにすれば、２つの廃棄口１４，１６に対応する回収室１５を共通化できるため、設備コストを削減できる。 The recovery chamber 15 may be a different space separated by a portion corresponding to the upstream waste port 14 and a portion corresponding to the downstream waste port 16, but is the same space in this embodiment. In this way, the recovery chamber 15 corresponding to the two disposal ports 14 and 16 can be shared, and the facility cost can be reduced.
　回収室１５内には、上流廃棄口１４および下流廃棄口１６のそれぞれの真下に、落下してくる廃棄ガラス板Ｇｘを受ける有底筒状の回収容器１８が配置されている。回収容器１８の内部には、落下の衝撃で割れた廃棄ガラス板Ｇｘから生じるガラス片（ガラス粉を含む）の飛散を防止するために、水などの不燃性液体を貯留しておいてもよい。 Inside the collection chamber 15, a bottomed cylindrical collection container 18 for receiving the falling waste glass plate Gx is arranged directly below each of the upstream waste port 14 and the downstream waste port 16. A nonflammable liquid such as water may be stored inside the recovery container 18 in order to prevent scattering of glass fragments (including glass powder) generated from the waste glass plate Gx broken by the impact of dropping. ..
　上流廃棄口１４および下流廃棄口１６には、その開口部を開閉可能な開閉機構（図示省略）が設けられている。このようにすれば、廃棄ガラス板Ｇｘから生じるガラス粉が、回収室１５から処理室７に侵入するのを物理的に遮断できる。なお、回収室１５の天井（すなわち、フロア面１７）が十分高い場合など、ガラス粉の処理室７への侵入の問題がない場合には、開閉機構は省略してもよい。 The upstream waste port 14 and the downstream waste port 16 are provided with an opening / closing mechanism (not shown) capable of opening / closing their openings. By doing so, it is possible to physically block the glass powder generated from the waste glass plate Gx from entering the processing chamber 7 from the recovery chamber 15. The opening / closing mechanism may be omitted if there is no problem of invasion of glass powder into the processing chamber 7 such as when the ceiling of the recovery chamber 15 (that is, the floor surface 17) is sufficiently high.
　回収室１５の気圧は、処理室７の気圧よりも低くすることが好ましい。このようにすれば、回収室１５内の気体が、処理室７内に侵入しにくくなる。そのため、回収室１５内のガラス粉が気体と共に処理室７に侵入しにくくなる。この場合、例えば、処理室７内に送風装置を配置すること、および／又は、回収室１５内に集塵装置を配置したりすることにより、上下空間の気圧を調整することができる。なお、集塵装置は、回収室１５内における廃棄口１４，１６の近傍に配置することが好ましい。 The air pressure in the recovery chamber 15 is preferably lower than the air pressure in the processing chamber 7. This makes it difficult for the gas in the recovery chamber 15 to enter the processing chamber 7. Therefore, it becomes difficult for the glass powder in the recovery chamber 15 to enter the processing chamber 7 together with the gas. In this case, the air pressure in the upper and lower spaces can be adjusted by, for example, disposing an air blower in the processing chamber 7 and / or disposing a dust collector in the recovery chamber 15. The dust collector is preferably arranged in the collection chamber 15 in the vicinity of the disposal ports 14 and 16.
（第二実施形態）
　図３および図４に示すように、第二実施形態に係るガラス板の製造装置および製造方法が、第一実施形態と相違するところは、下流廃棄口１６を搬送ゾーン５の最上流部、すなわち、最上流のパレット１１にガラス板Ｇを供給するための受渡ゾーン５ａのフロア面１７に設けた点である。 (Second embodiment)
As shown in FIGS. 3 and 4, the glass sheet manufacturing apparatus and method according to the second embodiment is different from the first embodiment in that the downstream waste port 16 is located at the most upstream portion of the transport zone 5, that is, The point is provided on the floor surface 17 of the delivery zone 5a for supplying the glass plate G to the most upstream pallet 11.
　このように下流廃棄口１６を搬送ゾーン５の最上流部に設けると、下流廃棄口１６を搬送ゾーン５の最下流部に設けた第一実施形態に比べ、下流廃棄口１６を上流廃棄口１４に近づけることができる。そのため、上流廃棄口１４および下流廃棄口１６に対応する回収室１５を共通化する場合に、共通化した回収室１５のスペースを小さくできる。その結果、設備コストを削減できる。また、例えば、回収室１５の省スペース化によって回収室１５と同一フロアに生じたスペースに、回収室１５から分離された清浄室１９などを設けることもできる。なお、清浄室１９には、例えば、ガラス板Ｇを収納したパレット１１などを保管できる。 When the downstream waste port 16 is provided in the most upstream part of the transport zone 5 as described above, the downstream waste port 16 is provided in the most upstream part of the transport zone 5 as compared with the first embodiment. Can be approached to. Therefore, when the recovery chamber 15 corresponding to the upstream waste port 14 and the downstream waste port 16 is shared, the space of the shared recovery chamber 15 can be reduced. As a result, equipment costs can be reduced. Further, for example, a space such as a clean room 19 separated from the recovery room 15 may be provided in a space formed on the same floor as the recovery room 15 due to the space saving of the recovery room 15. The clean room 19 can store, for example, the pallet 11 in which the glass plate G is stored.
（第三実施形態）
　図５に示すように、第三実施形態に係るガラス板の製造装置および製造方法が、第一実施形態および第二実施形態と相違するところは、搬送ゾーン５が、受渡ゾーンとして、２つの受渡ゾーン５ａ～５ｂのみを備えている点である。 (Third embodiment)
As shown in FIG. 5, the glass sheet manufacturing apparatus and manufacturing method according to the third embodiment are different from those of the first and second embodiments, except that the transport zone 5 has two delivery zones as delivery zones. The point is that only zones 5a and 5b are provided.
　この場合、下流廃棄口１６は、例えば、上流部の受渡ゾーン５ａ（あるいは下流部の受渡ゾーン５ｂ）のフロア面に設けられる。 In this case, the downstream disposal port 16 is provided, for example, on the floor surface of the upstream delivery zone 5a (or the downstream delivery zone 5b).
（第四実施形態）
　図６に示すように、第四実施形態に係るガラス板の製造装置および製造方法が、第一実施形態～第三実施形態と相違するところは、搬送ゾーン５が、受渡ゾーンとして、４つの受渡ゾーン５ａ～５ｄを備えている点である。 (Fourth embodiment)
As shown in FIG. 6, the glass sheet manufacturing apparatus and manufacturing method according to the fourth embodiment are different from those of the first to third embodiments, except that the transport zone 5 has four delivery zones as delivery zones. The point is that zones 5a to 5d are provided.
　この場合、下流廃棄口１６は、例えば、最上流部の受渡ゾーン５ａと、最下流部の受渡ゾーン５ｄとの間の中間部の受渡ゾーン５ｂ（あるいは受渡ゾーン５ｃ）のフロア面に設けられる。 In this case, the downstream disposal port 16 is provided, for example, on the floor surface of the delivery zone 5b (or the delivery zone 5c) in the middle portion between the delivery zone 5a in the most upstream portion and the delivery zone 5d in the most downstream portion.
　なお、搬送ゾーン５が４つの受渡ゾーン５ａ～５ｄを備えている場合でも、下流廃棄口１６は、最上流部の受渡ゾーン５ａ、あるいは、最下流部の受渡ゾーン５ｄのフロア面に設けられていてもよい。また、第一実施形態および第二実施形態で例示したように、搬送ゾーン５が３つの受渡ゾーン５ａ～５ｃを備えている場合でも、下流廃棄口１６は、最上流部の受渡ゾーン５ａと、最下流部の受渡ゾーン５ｃとの間の中間部の受渡ゾーン５ｂのフロア面に設けられていてもよい。 Even when the transport zone 5 has four delivery zones 5a to 5d, the downstream waste port 16 is provided on the floor surface of the delivery zone 5a at the most upstream portion or the delivery zone 5d at the most downstream portion. May be. Further, as illustrated in the first embodiment and the second embodiment, even when the transport zone 5 includes the three delivery zones 5a to 5c, the downstream waste port 16 has the delivery zone 5a in the uppermost stream, It may be provided on the floor surface of the intermediate transfer zone 5b between the most downstream transfer zone 5c.
（第五実施形態）
　図７に示すように、第五実施形態に係るガラス板の製造装置および製造方法が、第一実施形態～第四実施形態と相違するところは、上流廃棄口１４を第一切断ゾーン１のフロア面１７に設けた点である。このようにすれば、成形ゾーンの真下に位置する第一切断ゾーン１のフロア面１７に上流廃棄口１４が設けられるため、成形ゾーンが原因で廃棄するガラスリボン（廃棄ガラス板）が生じた場合に、そのガラスリボンを成形ゾーンから回収室１５にそのまま落下させて廃棄しやすくなる。 (Fifth embodiment)
As shown in FIG. 7, the glass sheet manufacturing apparatus and manufacturing method according to the fifth embodiment are different from those of the first to fourth embodiments, except that the upstream waste port 14 is located on the floor of the first cutting zone 1. This is the point provided on the surface 17. In this way, since the upstream waste port 14 is provided on the floor surface 17 of the first cutting zone 1 located directly below the molding zone, when a glass ribbon (waste glass plate) to be discarded occurs due to the molding zone. Moreover, the glass ribbon can be easily dropped from the molding zone into the collection chamber 15 and discarded.
　なお、本発明は上記の実施形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲内において、更に種々なる形態で実施し得る。 It should be noted that the present invention is not limited to the above-described embodiments, and can be carried out in various forms without departing from the scope of the present invention.
　上記の実施形態では、ガラス板を縦姿勢で搬送する場合を説明したが、ガラス板の搬送態様は特に限定されるものではなく、例えば、コンベアなどでガラス板Ｇを横姿勢（好ましくは水平姿勢）や傾斜姿勢で搬送してもよい。 In the above embodiment, the case where the glass plate is conveyed in the vertical posture has been described, but the conveying mode of the glass plate is not particularly limited, and for example, the glass plate G is in the horizontal posture (preferably the horizontal posture) by a conveyor or the like. ) Or an inclined posture.
　上記の実施形態では、検査結果に基づいてガラス板を格付けし、その格付け結果に基づいてガラス板を複数のパレットに積み分ける場合を説明したが、検査結果とは無関係に、ガラス板の積載枚数などに応じてガラス板を複数のパレットに積み分けるようにしてもよい。もちろん、複数のパレットに積み分ける構成に限定されるものではなく、予め配置された一つのパレットに複数のガラス板を順次積載するようにしてもよい。 In the above-described embodiment, the case where the glass plates are rated based on the inspection result and the glass plates are stacked on the plurality of pallets based on the rating result has been described, but regardless of the inspection result, the number of loaded glass plates is The glass plates may be stacked on a plurality of pallets according to the circumstances. Of course, the invention is not limited to a configuration in which a plurality of pallets are stacked, and a plurality of glass plates may be sequentially stacked on one pallet arranged in advance.
　上記の実施形態では、ガラス板を縦姿勢で重ねて積載するパレットを説明したが、ガラス板を積載する積載容器は特に限定されるものではなく、例えば、ガラス板Ｇを横姿勢（平置き姿勢）で積載するパレットや、ガラス板Ｇを間隔を置いて収納可能な溝付きケースなどであってもよい。 Although the pallet in which the glass plates are stacked in a vertical posture is described in the above embodiment, the loading container for loading the glass plates is not particularly limited. For example, the glass plate G is in a horizontal posture (flat posture). ), A pallet to be loaded with), a grooved case in which the glass plates G can be stored at intervals, or the like.
　上記の実施形態では、検査ゾーンの上流側と下流側とにそれぞれ廃棄口を設ける場合を説明したが、廃棄口の位置や個数は特に限定されない。例えば、検査ゾーンの上流側の廃棄口は省略してもよい。また、例えば、検査ゾーンの下流側の廃棄口を省略し、廃棄口を検査ゾーンのフロア面に設けてもよい。 In the above embodiment, the case where the waste ports are provided on the upstream side and the downstream side of the inspection zone has been described, but the positions and the number of the waste ports are not particularly limited. For example, the waste port on the upstream side of the inspection zone may be omitted. Further, for example, the waste port on the downstream side of the inspection zone may be omitted and the waste port may be provided on the floor surface of the inspection zone.
　上記の実施形態において、ガラス板の搬送ゾーンなどが設けられる処理室内に廃棄部としての有底筒状の回収容器を配置し、その回収容器内にガラス板を落下させて廃棄してもよい。 In the above embodiment, a bottomed cylindrical recovery container as a discarding unit may be disposed in a processing chamber in which a glass plate transport zone or the like is provided, and the glass plate may be dropped into the recovery container for disposal.
１　　　第一切断ゾーン
２　　　受渡ゾーン
３　　　第二切断ゾーン
４　　　検査ゾーン
５　　　搬送ゾーン
６　　　積載ゾーン
７　　　処理室
８　　　搬送装置
９　　　搬送装置
１０　　検査装置
１１　　パレット
１２　　積載装置
１３　　制御部
１４　　上流廃棄口
１５　　回収室
１６　　下流廃棄口
１７　　フロア面
１８　　回収容器
１９　　清浄室
Ｇ　　　ガラス板
Ｇｘ　　廃棄ガラス板
  1 1st cutting zone 2 Delivery zone 3 2nd cutting zone 4 Inspection zone 5 Conveying zone 6 Loading zone 7 Processing chamber 8 Conveying device 9 Conveying device 10 Inspection device 11 Pallet 12 Loading device 13 Controller 14 Upstream waste port 15 Recovery chamber 16 Downstream waste port 17 Floor surface 18 Collection container 19 Clean room G Glass plate Gx Waste glass plate

Claims (6)

  1. 　複数のガラス板を検査する検査工程と、
    　前記検査工程を経た前記ガラス板を搬送する搬送工程と、
    　前記搬送工程の搬送経路上から前記ガラス板を取り出して積載容器に積載する積載工程と、を備えたガラス板の製造方法であって、
    　前記ガラス板の中に廃棄ガラス板が生じた場合に、前記検査工程を実施する検査ゾーン又はその下流側の前記搬送経路上で前記廃棄ガラス板を落下させて廃棄する第一廃棄工程を備えていることを特徴とするガラス板の製造方法。     An inspection process for inspecting multiple glass plates,
    A carrying step of carrying the glass plate after the inspection step,
    A method of manufacturing a glass plate, comprising: a loading process of removing the glass plate from a transportation path of the transportation process and loading the glass plate in a loading container;
    When a waste glass plate is generated in the glass plate, a first discarding step of dropping and discarding the waste glass sheet in the inspection zone for carrying out the inspection step or on the transport path on the downstream side thereof is provided. A method for manufacturing a glass plate, which is characterized in that
  2. 　前記搬送工程では、前記ガラス板を縦姿勢で表面に沿って横方向に搬送することを特徴とする請求項１に記載のガラス板の製造方法。 The method for manufacturing a glass plate according to claim 1, wherein, in the carrying step, the glass plate is carried in a horizontal position along a surface in a vertical direction.
  3. 　前記第一廃棄工程では、前記廃棄ガラス板を前記搬送経路の階下に設けられた回収室内に落下させて廃棄することを特徴とする請求項１又は２に記載のガラス板の製造方法。 The method of manufacturing a glass sheet according to claim 1 or 2, wherein in the first discarding step, the waste glass sheet is dropped into a recovery chamber provided below the transfer path to discard the glass sheet.
  4. 　前記検査工程の前工程として、ガラスリボンを成形する成形工程と、前記ガラスリボンを幅方向に切断して前記ガラス板を得る切断工程と、を更に備えると共に、
    　前記検査工程の前工程で前記廃棄ガラス板が生じた場合に、前記検査ゾーンの上流側で前記廃棄ガラス板を落下させて廃棄する第二廃棄工程を更に備え、
    　前記第二廃棄工程では、前記第一廃棄工程と同じ前記回収室内に前記廃棄ガラス板を落下させて廃棄することを特徴とする請求項３に記載のガラス板の製造方法。     As a pre-step of the inspection step, a molding step of molding a glass ribbon, and a cutting step of cutting the glass ribbon in the width direction to obtain the glass plate, and
    When the waste glass plate is generated in the previous step of the inspection step, further comprising a second disposal step of dropping the waste glass plate on the upstream side of the inspection zone and discarding it.
    The method for producing a glass plate according to claim 3, wherein in the second discarding step, the waste glass sheet is dropped into the same recovery chamber as in the first discarding step and discarded.
  5. 　前記第一廃棄工程では、前記検査ゾーンの下流側の前記搬送経路の最上流部で前記ガラス板を落下させて廃棄することを特徴とする請求項４に記載のガラス板の製造方法。 The method for manufacturing a glass plate according to claim 4, wherein, in the first discarding step, the glass plate is dropped and discarded at a most upstream portion of the transportation path on the downstream side of the inspection zone.
  6. 　複数のガラス板を検査する検査装置と、前記検査装置の検査を経た前記ガラス板を搬送する搬送装置と、前記搬送装置の搬送経路上から前記ガラス板を取り出して積載容器に積載する積載装置と、を備えたガラス板の製造装置であって、
    　前記検査装置が配置された検査ゾーン又はその下流側の前記搬送経路上で、前記ガラス板の中に含まれる廃棄ガラス板を落下させて廃棄する廃棄部を備えていることを特徴とするガラス板の製造装置。
          An inspection device for inspecting a plurality of glass plates, a transport device for transporting the glass plates that have been inspected by the inspection device, and a loading device for taking out the glass plates from a transport path of the transport device and loading them on a loading container. An apparatus for manufacturing a glass plate, comprising:
    A glass plate characterized by comprising a discarding unit for dropping and discarding a waste glass plate contained in the glass plate on the inspection zone where the inspection device is arranged or on the transport path on the downstream side thereof. Manufacturing equipment.
PCT/JP2019/041754 2018-11-01 2019-10-24 Production method and production apparatus for glass sheets WO2020090627A1 (en)

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JPH06247515A (en) * 1993-02-23 1994-09-06 Asahi Glass Co Ltd Planar sorting system
JPH10120160A (en) * 1996-10-21 1998-05-12 Central Glass Co Ltd Conveying classification device of glass pane
JP2008266098A (en) * 2007-04-24 2008-11-06 Nippon Electric Glass Co Ltd Glass plate manufacturing method and glass plate manufacturing equipment
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JP2018090448A (en) * 2016-12-02 2018-06-14 日本電気硝子株式会社 Method for manufacturing plate glass
JP2018104221A (en) * 2016-12-26 2018-07-05 日本電気硝子株式会社 Production method of glass plate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63298036A (en) * 1987-05-29 1988-12-05 Nippon Sheet Glass Co Ltd Two-grade plate sampling system
JPH06247515A (en) * 1993-02-23 1994-09-06 Asahi Glass Co Ltd Planar sorting system
JPH10120160A (en) * 1996-10-21 1998-05-12 Central Glass Co Ltd Conveying classification device of glass pane
JP2008266098A (en) * 2007-04-24 2008-11-06 Nippon Electric Glass Co Ltd Glass plate manufacturing method and glass plate manufacturing equipment
JP2017154911A (en) * 2016-02-29 2017-09-07 日本電気硝子株式会社 Facility and method for manufacturing glass plate
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JP2018104221A (en) * 2016-12-26 2018-07-05 日本電気硝子株式会社 Production method of glass plate

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