WO2019188721A1 - ガラス板の製造方法及びガラス板の洗浄装置 - Google Patents

ガラス板の製造方法及びガラス板の洗浄装置 Download PDF

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Publication number
WO2019188721A1
WO2019188721A1 PCT/JP2019/011891 JP2019011891W WO2019188721A1 WO 2019188721 A1 WO2019188721 A1 WO 2019188721A1 JP 2019011891 W JP2019011891 W JP 2019011891W WO 2019188721 A1 WO2019188721 A1 WO 2019188721A1
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WO
WIPO (PCT)
Prior art keywords
cleaning
glass plate
rows
width direction
row
Prior art date
Application number
PCT/JP2019/011891
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
弘樹 中塚
薫 鑑継
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 CN201990000578.3U priority Critical patent/CN215480583U/zh
Publication of WO2019188721A1 publication Critical patent/WO2019188721A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods

Definitions

  • the present invention relates to a glass plate manufacturing method and a glass plate cleaning apparatus.
  • FPD flat panel displays
  • liquid crystal displays plasma displays
  • organic EL displays organic EL displays
  • a dense electric circuit is formed in the FPD manufacturing process on the glass plate used as the FPD substrate. Therefore, this type of glass plate is required to have high cleanliness free from dust and dirt.
  • a cleaning step for cleaning the glass plate is generally provided after a cutting step for obtaining a plurality of glass plates by cutting the original glass plate into a predetermined size.
  • Patent Document 1 As a method for cleaning the glass plate, for example, a method disclosed in Patent Document 1 can be mentioned.
  • two rows of cleaning rows in which a plurality of disc-shaped cleaning members are arranged side by side in the width direction perpendicular to the transport direction of the glass plate are provided at intervals in the transport direction. By rotating each cleaning member included in the two cleaning rows, the surface of the transported glass plate is cleaned.
  • a gap is formed between adjacent cleaning members in each cleaning row in order to avoid interference between adjacent cleaning members.
  • Patent Document 1 in order to suppress the occurrence of uneven cleaning in the width direction orthogonal to the conveyance direction of the glass plate, the cleaning member included in one cleaning row of the two cleaning rows is included in the other cleaning row.
  • the cleaning member included is arranged so as to be shifted in the width direction.
  • the glass plate In the two cleaning rows, at the position corresponding to the gap between adjacent cleaning members of one cleaning row, or at the position corresponding to the gap between adjacent cleaning members of the other cleaning row, the glass plate The surface of this is in contact with the cleaning member only once. Therefore, at the position corresponding to the gap, the contact time between the cleaning member and the glass plate is inevitably shortened, and cleaning unevenness in the width direction may still occur. If such cleaning unevenness occurs, streaky stains may remain on the glass plate and cause cleaning defects.
  • This invention makes it a subject to reduce reliably the washing
  • the present invention which was created to solve the above problems, is a cleaning row including a plurality of cleaning members arranged with a gap in the width direction intersecting the transport direction of the glass plate while transporting the glass plate,
  • a glass plate manufacturing method comprising a cleaning step for cleaning a surface of a glass plate, wherein the cleaning column is visually recognizable when the cleaning member included in the same column is observed from the transport direction.
  • the cleaning rows are provided in a plurality of rows at intervals in the transport direction, and the plurality of cleaning rows include three or more cleaning rows whose positions in the width direction of the gaps do not overlap each other.
  • the term “surface of the glass plate” means at least one of the front and back surfaces of the glass plate.
  • the present invention includes a case where only one side of the glass plate is washed and a case where both sides of the glass plate are washed.
  • the term “a plurality of cleaning rows includes three or more cleaning rows whose positions in the width direction of the gaps do not overlap each other” includes a plurality of cleaning rows including three or more cleaning rows as a whole. In other words, a case where a plurality of the same type of cleaning rows (cleaning rows where the positions of the gaps in the width direction overlap each other) is included is also included.
  • the glass Since the plate makes contact with the cleaning members included in the remaining two or more cleaning rows at least twice, a sufficient cleaning time can be secured.
  • any one of the three or more cleaning rows (or one cleaning member) (or the cleaning member included in the cleaning row) cannot be used due to a failure or the like among the three or more types of cleaning rows whose positions in the width direction of the gap do not overlap each other.
  • the entire width of the glass plate can be cleaned without gaps with the remaining two (two) or more cleaning rows. Therefore, the cleaning unevenness of the glass plate in the width direction can be surely reduced.
  • the gaps of the cleaning rows where the positions in the width direction of the gaps do not overlap each other are positioned so as to repeat at equal intervals in the width direction.
  • the respective gaps in the cleaning row where the positions in the width direction of the gaps do not overlap each other appear at regular intervals in the width direction.
  • cleaning member and glass plate by the influence of a clearance gap is suppressed small in the width direction. Accordingly, it is possible to more surely reduce the unevenness in cleaning the glass plate in the width direction.
  • a pair of upper and lower rollers including an upper roller and a lower roller is disposed on each of the upstream side and the downstream side in the conveyance direction of the plurality of rows of cleaning rows, and the glass plate is sandwiched between the upper and lower roller pairs vertically. You may make it convey by. If it does in this way, the attitude
  • the present invention provides a cleaning mechanism including a transport mechanism for transporting a glass plate and a plurality of cleaning members arranged with a gap in the width direction intersecting the transport direction of the glass plate.
  • the cleaning device is a glass plate cleaning device, wherein the cleaning row is visible when the cleaning member included in the same row is observed from the transport direction, and the cleaning row is in the transport direction.
  • a plurality of cleaning rows are provided at intervals, and the plurality of cleaning rows include three or more cleaning rows whose positions in the width direction of the gaps do not overlap each other. According to such a structure, the same effect as the corresponding structure already described can be obtained.
  • the present invention when cleaning the surface of the glass plate to be transported, it is possible to reliably reduce the unevenness of the cleaning of the glass plate in the width direction intersecting the transport direction.
  • XYZ is an orthogonal coordinate system.
  • the X direction and the Y direction are horizontal directions, and the Z direction is a vertical direction.
  • the Y direction is the conveyance direction of the glass plate, and the XZ plane including the X direction and the Z direction is a plane orthogonal to the conveyance direction of the glass plate.
  • the glass plate cleaning apparatus 1 includes a cleaning area W and a drying area D, and the upper surface Ga and the lower surface of the glass plate G are conveyed in the Y direction. Gb is washed at the same time.
  • the glass plate G has one end side lower than the other end side in the width direction perpendicular to the transport direction Y of the glass plate G (the direction that forms an angle ⁇ with the X direction in FIG. 3). It is conveyed in an inclined posture so as to be positioned. This prevents excess liquid adhering to the upper surface Ga of the glass plate G from flowing down from the upper surface Ga of the glass plate G by its own weight, and forming a liquid reservoir that causes contamination on the upper surface Ga of the glass plate G. Yes.
  • the glass plate G may be conveyed in a horizontal posture.
  • the cleaning apparatus 1 includes squeezing rollers 2 and 3 that remove liquid adhered to the upper surface Ga and the lower surface Gb of the glass plate G, an upper cleaning mechanism 4 that cleans the upper surface Ga of the glass plate G, and a glass plate. And a lower cleaning mechanism 5 for cleaning the lower surface Gb of G.
  • the glass plate G is supplied to the cleaning area W by an arbitrary mechanism such as a conveyance roller disposed on the upstream side.
  • the squeezing rollers 2 and 3 are constituted by a pair of upper and lower rollers including an upper roller 2a and 3a and a lower roller 2b and 3b, which convey the glass plate G between the upper and lower sides. That is, the squeeze rollers 2 and 3 also function as a transport mechanism. In the present embodiment, the squeezing rollers 2 and 3 are disposed on the upstream side and the downstream side of the cleaning mechanisms 4 and 5, respectively.
  • the squeezing rollers 2 and 3 are composed of rollers made of a material capable of absorbing liquid (for example, soft sponge), but are not limited thereto.
  • the upper cleaning mechanism 4 has three cleaning rows 6a to 6c provided at intervals in the transport direction Y, and the cleaning liquid C is stored in the internal space in order to supply the cleaning liquid C to each of the cleaning rows 6a to 6c. And a housing 7.
  • the lower cleaning mechanism 5 includes three cleaning rows 8a to 8c provided at intervals in the transport direction Y so as to face the cleaning rows 6a to 6c of the upper cleaning mechanism 4 with the glass plate G interposed therebetween.
  • a housing 9 in which the cleaning liquid C is stored is provided in the internal space.
  • a liquid such as a cleaning liquid (for example, a liquid detergent) or a rinsing liquid (for example, water) can be used.
  • a cleaning liquid for example, a liquid detergent
  • a rinsing liquid for example, water
  • the lower cleaning mechanism 5 has a configuration in which the upper cleaning mechanism 4 is turned upside down, and has substantially the same configuration and operational effects as the upper cleaning mechanism 4. Therefore, hereinafter, the configuration of the upper cleaning mechanism 4 will be described as an example, and a detailed description of the configuration of the lower cleaning mechanism 5 will be omitted.
  • each of the cleaning rows 6a to 6c of the upper cleaning mechanism 4 includes a plurality of cleaning members 10 arranged in a row with a gap S in the width direction orthogonal to the conveyance direction Y of the glass plate G. ing.
  • Each cleaning member 10 is a disk-shaped rotating body capable of rubbing and cleaning the upper surface Ga of the glass plate G.
  • the cleaning members 11 included in the cleaning rows 8a to 8c of the lower cleaning mechanism 5 are paired with the cleaning members 10 included in the cleaning rows 6a to 6c of the upper cleaning mechanism 4 with the glass plate G interposed therebetween. The pair of cleaning members 10 and 11 rotate in the same direction.
  • the three cleaning rows 6a to 6c are arranged so as to be shifted in the width direction so that the positions in the width direction of the gaps S (ranges of the gaps S in each row) do not overlap each other. That is, the three cleaning rows 6a to 6c are composed of three types of cleaning rows whose positions in the width direction of the gap S do not overlap each other. Therefore, when viewed in the transport direction Y, the two two cleaning rows included in the remaining two cleaning rows within any gap S of the cleaning rows included in any one of the cleaning rows 6a to 6c. A part of the cleaning member 10 is located.
  • the glass plate G is included in the remaining two cleaning rows at any position in the width direction corresponding to any gap S of any one of the three cleaning rows 6a to 6c. Since it makes contact with 10 twice, a sufficient cleaning time can be secured. Even if any one of the three cleaning rows 6a to 6c (or the cleaning member 10 included in the cleaning row) cannot be used due to a failure or the like, the remaining two cleaning rows are made of glass. The entire width of the plate G can be cleaned without gaps. Therefore, it is possible to reliably reduce the unevenness of cleaning of the glass plate G in the width direction.
  • the gaps S of the three cleaning rows 6a to 6c are constant in the width direction. It is located so as to repeat at an interval ⁇ L. Thereby, the uneven cleaning of the glass plate G in the width direction can be more reliably reduced.
  • the gaps S in the three cleaning rows 6a to 6c may be positioned so as to repeat at unequal intervals in the width direction.
  • the diameter of the cleaning member 10 is preferably 50 to 200 mm, for example, and the width of the gap S is preferably 2 to 10 mm, for example.
  • the repetition interval ⁇ L of the gap S can be appropriately set according to the diameter of the cleaning member 10 and the type of cleaning row.
  • the plurality of cleaning rows may include four or more cleaning rows as long as they include three types of cleaning rows whose positions in the width direction of the gap S do not overlap each other. From the viewpoint of suppressing an increase in equipment cost, it is preferable that the plurality of cleaning rows be composed of 20 rows or less. From the same viewpoint, it is preferable that the number of cleaning rows included in the plurality of cleaning rows is 5 or less.
  • the upper cleaning mechanism 4 has a configuration for supplying the cleaning liquid C stored in the housing 7 to the cleaning members 10 of the three cleaning rows 6a to 6c.
  • the cleaning liquid C is supplied from one housing 7 to the cleaning members 10 of the three cleaning rows 6a to 6c (see FIG. 1).
  • the cleaning liquid C may be supplied from a plurality of casings by providing a dedicated casing for each of the three cleaning rows 6a to 6c.
  • the casing 7 is inclined following the inclination of the upper surface Ga of the glass plate G. Due to the inclination of the casing 7, the cleaning members 10 of the cleaning rows 6 a to 6 c are inclined following the upper surface Ga of the glass plate G.
  • the inclination angle ⁇ of the upper surface Ga of the glass plate G with respect to the horizontal plane is preferably 2 to 10 °, for example.
  • the upper cleaning mechanism 4 faces the internal space of the spindle case 12 and the spindle case 12 fixed to the housing 7 so as to face the internal space of the housing 7 at a position corresponding to each cleaning member 10.
  • a spindle 13 is rotatably held by the spindle case 12.
  • the cleaning member 10 is attached to the lower end of the spindle 13 outside the housing 7 and the spindle case 12.
  • a cylindrical sliding bearing (bushing) 14 is press-fitted and fixed to the lower end portion of the spindle case 12, and a cylindrical sliding bearing (bushing) 15 is press-fitted and fixed to the upper end portion of the spindle case 12.
  • the outer peripheral surface of the spindle 13 is rotatably held by bearing surfaces (inner peripheral surfaces) of the sliding bearings 14 and 15.
  • the sliding bearings 14 and 15 may be made of metal, for example, but are made of resin (for example, engineering plastic) in the present embodiment.
  • the cleaning member 10 is attached to the spindle 13 via a spacer 16.
  • the cleaning member 10 and the spacer 16 can be attached to and detached from the spindle 13.
  • the cleaning member 10 includes a cleaning unit 10a that contacts the upper surface Ga of the glass plate G and rubs and cleans the upper surface Ga of the glass plate G, and a support unit 10b to which the cleaning unit 10a is attached.
  • the cleaning unit 10a may be, for example, a brush or the like, but is a pad made of sponge or nonwoven fabric in the present embodiment.
  • the contact pressure of the cleaning member 10 with respect to the glass plate G is preferably set smaller than the contact pressure of the upper rollers 2a and 3a with respect to the glass plate G. Thereby, the straight running stability in the conveyance direction Y of the glass plate G improves.
  • the contact pressure of the cleaning member 10 with respect to the glass plate G includes, for example, adjusting the position of the upper cleaning mechanism 4 with respect to the glass plate G and changing the thickness of the spacer 16 (including the case where the spacer 16 is not attached). ) Etc.
  • the casing 7 is provided with a supply path R1 for supplying the cleaning liquid C to the internal space of the casing 7 from the outside, and the cleaning liquid stored in a tank (not shown) disposed outside the casing 7.
  • C is pumped by a pump (not shown) or the like into the internal space of the housing 7 through the supply path R1 as indicated by an arrow a.
  • a pump not shown
  • One or a plurality of supply paths R1 are provided in the housing 7.
  • the spindle case 12 is provided with a communication path R2 that communicates the internal space of the housing 7 with the internal space of the spindle case 12, and the cleaning liquid C in the internal space of the housing 7 is in communication with the communication path as indicated by an arrow b. It is supplied to the internal space of the spindle case 12 through R2.
  • the spindle 13 and the spacer 16 are provided with a communication path R3 that communicates the internal space of the spindle case 12 and the cleaning member 10, and the cleaning liquid C in the internal space of the spindle case 12 passes through the communication path R3 as indicated by an arrow c. Is supplied to the cleaning member 10.
  • the communication path R ⁇ b> 3 includes a through hole provided in the spindle 13 and a through hole provided in the spacer 16.
  • the cleaning member 10 is provided with a through hole R4 communicating with the communication path R3, and the cleaning liquid C supplied through the communication path R3 is supplied to the glass plate G through the through hole R4 as indicated by an arrow d. ing.
  • the through-hole R4 may be omitted when the cleaning member 10 is formed of a material (for example, a porous body) that can transmit the cleaning liquid C.
  • cleaning fluid C will be in order of internal space of case 7-> internal space of spindle case 12-> cleaning member 10-> glass plate G by supply channel R1, communication channel R2, communication channel R3, and penetration hole R4. Supplied. Accordingly, since the cleaning liquid C supplied to the internal space of the housing 7 is directly supplied to each cleaning member 10 via the communication path R2 and the communication path R3, complicated piping for supplying the cleaning liquid is not necessary and the cleaning liquid C Less waste.
  • the spindle case 12 and the spindle 13 are immersed in the cleaning liquid C stored in the internal space of the housing 7, the spindle case 12 and the spindle 13 are cooled by the cleaning liquid C. Can also be expected. Therefore, it is considered that the thermal expansion of the spindle case 12 and the spindle 13 can be reduced and the rotation operation of the spindle 13 can be maintained well even while the spindle 13 is rotated to clean the glass plate G.
  • a plurality of spindle cases 12 and a plurality of spindles 13 corresponding to the cleaning members 10 of the cleaning rows 6a to 6c are immersed in the cleaning liquid C in one housing 7.
  • the amount of the cleaning liquid C supplied to the cleaning members 10 included in the cleaning rows 6a to 6c may vary due to the pressure difference due to the height difference. Therefore, although not shown in the drawings, from the viewpoint of reducing the variation in the supply amount of the cleaning liquid C due to the height difference, in each of the cleaning rows 6a to 6c, the communication path R3 positioned at a lower position is more than the communication path R3 positioned at a higher position. It is preferable to have a portion with a small opening area.
  • the opening area of the through hole of the spacer 16 positioned at the lower position is made smaller than the opening area of the through hole of the spacer 16 positioned at the higher position, or the opening area of the through hole of the spindle 13 positioned at the lower position. Is preferably smaller than the opening area of the through hole of the spindle 13 positioned at a high level.
  • the opening area may be changed by providing an orifice in a part of the through hole of the spindle 13.
  • the upper cleaning mechanism 4 includes a rotation driving mechanism 17 that rotates the spindle 13 for each of the cleaning rows 6a to 6c.
  • the rotation drive mechanism 17 applies a rotation drive force to the upper end portion of the spindle 13 outside the housing 7 and the spindle case 12.
  • the rotation drive mechanism 17 includes a gear mechanism 18 and a drive unit 19.
  • the gear mechanism 18 includes a plurality of gears 18a attached to the upper ends of the spindles 13, and the gears 18a adjacent in the X direction are engaged with each other.
  • the drive unit 19 includes a motor 19a and a gear 19b attached to the motor 19a.
  • the gear 19b meshes with the gear 18a on one end side in the X direction of the gear mechanism 18. Accordingly, when the gear 19b is rotated by the rotation of the motor 19a, the power is transmitted to the gear mechanism 18 so that each spindle 13 rotates.
  • the gears 18a and 19b may be made of metal (for example, made of SUS), for example, but are made of resin (for example, made of engineering plastic) in the present embodiment.
  • the gears 18a and 19b may be a combination of metal and resin.
  • the gears 18a adjacent to each other in the X direction are directly meshed with each other, so that the spindle 13 and the cleaning member 10 adjacent to each other in the X direction rotate in opposite directions. (See FIG. 2), the gears may be rotated in the same direction by increasing gears or the like.
  • the power transmission unit is not limited to the gear mechanism 18 and may be other means such as a belt. Furthermore, you may attach a drive part to each spindle 13 separately.
  • the exudation of the cleaning liquid C forming the liquid layers C1 and C2 is likely to occur when the pressure of the cleaning liquid C in the internal space of the housing 7 is increased.
  • the pressure of the cleaning liquid C in the internal space of the housing 7 can be adjusted, for example, by changing the supply amount of the cleaning liquid C to the internal space of the housing 7 per unit time.
  • the cleaning device 1 includes air knives 20 a and 20 b and a conveyance roller 21 in the drying area D.
  • the air knife 20 a is disposed above the transport roller 21, and the air knife 20 b is disposed below the transport roller 21.
  • the glass plate G is conveyed by the conveying roller 21, and high pressure gas is sprayed from the air knives 20a and 20b onto the upper surface Ga and the lower surface Gb of the glass plate G, so that moisture adhering to these surfaces is removed. Remove.
  • the glass plate G may be dried by a known drying means other than the air knives 20a and 20b. Further, the drying area D may be omitted.
  • This manufacturing method includes a cleaning process using the glass plate cleaning apparatus 1 described above.
  • the glass plate manufacturing method includes, for example, a molding process, a slow cooling process, a plate-making process, a cutting process, a cleaning process (including a drying process), an inspection process, and a packaging process. ing. In addition, you may provide the heat processing process after the plate-drawing process. Further, an end face processing step may be provided after the cutting step.
  • a glass ribbon is formed from the molten glass by a known method such as an overflow downdraw method or a float method.
  • the molded glass ribbon is gradually cooled in order to reduce warpage and internal distortion of the molded glass ribbon.
  • the slowly cooled glass ribbon is cut into predetermined lengths to obtain a plurality of original glass plates.
  • heat treatment for example, heat treatment is performed on the original glass plate in a heat treatment furnace.
  • the original glass plate is cut into a predetermined size to obtain one or a plurality of glass plates G.
  • a cutting method of the original glass plate for example, bending stress cleaving that causes the scribe line formed along the planned cutting line to progress by bending stress, and initial crack formed on a part of the planned cutting line by laser irradiation and rapid cooling.
  • Laser cutting that progresses along the planned cutting line by the generated thermal stress, laser cutting that cuts along the planned cutting line while melting by laser irradiation, and the like can be used.
  • the glass plate G is preferably rectangular.
  • the size of one side of the glass plate G is preferably 1000 mm to 3000 mm, the plate thickness is preferably 0.05 mm to 10 mm, and more preferably 0.2 mm to 0.7 mm.
  • end face processing including end face grinding, polishing and corner cutting is performed on the glass plate G.
  • the glass plate G is cleaned while being transported in an inclined posture using the above-described cleaning device 1 and then dried.
  • the surface of the cleaned glass plate G is inspected for scratches, dust, dirt, and / or internal defects such as air bubbles and foreign matter.
  • the inspection is performed using an optical inspection device such as a camera.
  • the glass plate G satisfying the desired quality is packed as a result of the inspection.
  • Packing is performed by laminating a plurality of glass plates G on a predetermined pallet in a flat position or in a vertical position.
  • a protective sheet made of a slip sheet or a foamed resin between the glass plates G in the stacking direction.
  • this invention is not limited to the structure of the said embodiment, It is not limited to the above-mentioned effect.
  • the present invention can be variously modified without departing from the gist of the present invention.
  • the cleaning liquid is supplied using the casing in which the cleaning liquid is stored has been described, but the method of supplying the cleaning liquid is not limited to this.
  • the cleaning liquid may be sprayed and supplied to the cleaning member and / or the glass plate using a shower nozzle or the like.
  • the squeeze roller may be omitted. Further, the squeeze roller may be replaced with a transport roller composed of a pair of upper and lower rollers that do not adsorb liquid. In this case, a conveyance roller is good also as a structure which contacts and conveys only the both ends of the glass plate G in the width direction, ie, the center part of the glass plate G in the width direction.
  • At least one of the pair of cleaning members facing in the plate thickness direction of the glass plate can be moved in the plate thickness direction of the glass plate between the reference position and the retracted position.
  • Good That is, it is detected by a sensor or the like that the glass plate has been conveyed to a predetermined position, and at least one of the cleaning members facing the plate thickness direction of the glass plate is retracted based on the detection result.
  • the facing distance between the pair of cleaning members may be narrowed so as to contact the glass plate.
  • the upper cleaning mechanism and the lower cleaning mechanism may have different configurations.
  • the cleaning liquid is supplied on the upper surface side of the glass plate, the cleaning liquid supplied to the upper surface is supplied to the lower surface of the glass plate along the surface of the glass plate. Therefore, the lower cleaning mechanism may not include a configuration in which the cleaning member directly supplies the cleaning liquid to the glass plate.
  • a drying area may be provided on the downstream side of each cleaning area, or a drying area may be provided only on the downstream side of the most downstream cleaning area.
  • line demonstrated the case where the several washing
  • column and the conveyance direction of a glass plate A plurality of cleaning members arranged with a gap in the intersecting width direction may be included. That is, the arrangement direction (width direction) of the cleaning row may be inclined with respect to the direction orthogonal to the conveyance direction of the glass plate. The inclination may be set such that when the cleaning row is observed from the transport direction, the adjacent cleaning members included in the cleaning row do not overlap, and the gap between the adjacent cleaning members can be visually recognized.
  • line with respect to the direction orthogonal to the conveyance direction of a glass plate is less than 30 degrees, less than 25 degrees, less than 20 degrees, less than 15 degrees, less than 10 degrees, less than 5 degrees, for example.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mathematical Physics (AREA)
  • Cleaning In General (AREA)
  • Liquid Crystal (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Surface Treatment Of Glass (AREA)
PCT/JP2019/011891 2018-03-26 2019-03-20 ガラス板の製造方法及びガラス板の洗浄装置 WO2019188721A1 (ja)

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Application Number Priority Date Filing Date Title
CN201990000578.3U CN215480583U (zh) 2018-03-26 2019-03-20 玻璃板的清洗装置

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JP2018058204A JP2021113132A (ja) 2018-03-26 2018-03-26 ガラス板の製造方法及びガラス板の洗浄装置
JP2018-058204 2018-03-26

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JP (1) JP2021113132A (zh)
CN (1) CN215480583U (zh)
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WO2011126028A1 (ja) * 2010-04-08 2011-10-13 旭硝子株式会社 ガラス板の製造方法及び製造装置
JP2018030058A (ja) * 2016-08-22 2018-03-01 日本電気硝子株式会社 板ガラス洗浄装置

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JP2018030058A (ja) * 2016-08-22 2018-03-01 日本電気硝子株式会社 板ガラス洗浄装置

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