WO2023228788A1 - Production method for glass film, and production device for glass film - Google Patents

Production method for glass film, and production device for glass film Download PDF

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Publication number
WO2023228788A1
WO2023228788A1 PCT/JP2023/017983 JP2023017983W WO2023228788A1 WO 2023228788 A1 WO2023228788 A1 WO 2023228788A1 JP 2023017983 W JP2023017983 W JP 2023017983W WO 2023228788 A1 WO2023228788 A1 WO 2023228788A1
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WO
WIPO (PCT)
Prior art keywords
glass film
conveyance
unnecessary
unnecessary parts
treated
Prior art date
Application number
PCT/JP2023/017983
Other languages
French (fr)
Japanese (ja)
Inventor
弘樹 森
浩一 森
直弘 猪飼
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日本電気硝子株式会社
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Filing date
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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
Publication of WO2023228788A1 publication Critical patent/WO2023228788A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06—Forming glass sheets
    • 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
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands

Definitions

  • the present invention relates to a glass film manufacturing method and a glass film manufacturing apparatus.
  • a method for manufacturing a glass film includes a molding step of molding a glass film using a molding device.
  • a glass film with unnecessary parts is obtained, which has a glass film to be a product (that is, a part that guarantees quality) and unnecessary parts provided on both sides of the glass film in the width direction.
  • the glass film is wound up using a winding device, for example.
  • An object of the present invention is to provide a glass film manufacturing method and a glass film manufacturing apparatus that can reduce scratches on the main surface of the glass film.
  • a method for producing a glass film according to aspect 1 includes a forming step of forming a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a forming apparatus.
  • a processing step of obtaining a treated glass film by separating and removing at least a portion of the unnecessary portion of the glass film with unnecessary portions in a processing device a first conveying step of conveying a glass film with parts, and a second conveying step of conveying the treated glass film from the processing device to a collecting device that collects the treated glass film, the first conveying step and the In the second conveyance step, the glass film with unnecessary parts or the treated glass film is conveyed in a state where no member other than the conveyance sheet that is softer than the glass film comes into contact with the glass film that becomes the product.
  • this method it is possible to prevent scratches caused by other members coming into contact with the main surface of the glass film in the first conveyance step and the second conveyance step. Therefore, scratches on the main surface of the glass film can be reduced.
  • the processing device may include a positioning device that positions the height of the unnecessary portion while the glass film is bent downward. According to this method, for example, the processing step can be performed while the position of the unnecessary part of the glass film with unnecessary parts is stabilized.
  • the first conveying step is in a state in which the unnecessary part of the glass film with unnecessary part is supported, and the glass film is bent downward.
  • the method may also include a step of conveying the glass film with unnecessary parts in the state. According to this method, the posture of the glass film with unnecessary parts can be stabilized and transported.
  • the second conveying step is in a state in which both ends of the treated glass film in the width direction are supported, and the glass film is
  • the method may include a step of conveying the treated glass film in a state where the glass film is bent downward. According to this method, the posture of the treated glass film can be stabilized and transported.
  • the glass film may be floated by a gas injected toward the glass film from below.
  • the glass film with unnecessary parts or the treated glass film can be transported while maintaining the state in which members other than the above-mentioned transport sheet do not come into contact with the glass film while stabilizing the posture of the glass film.
  • the traveling direction of the glass film with unnecessary parts conveyed from the forming device is changed from the vertical direction.
  • the method may include a direction changing step of converting to a horizontal direction, and in the direction changing step, only the unnecessary portion of the glass film with unnecessary portions may be supported by a plurality of direction changing rollers that guide only the unnecessary portion from the vertical direction to the horizontal direction. good. According to this method, for example, it is possible to easily change the direction of a glass film with an unnecessary portion that is conveyed from a molding device in a vertical direction to a horizontal direction.
  • the first conveyance step includes conveyance using a belt conveyor device that conveys the glass film with unnecessary parts along the lateral direction.
  • the belt conveyor device may include a belt main body and an auxiliary belt detachable from the belt main body, and the auxiliary belt may support only the unnecessary portion of the glass film with unnecessary portions. According to this method, for example, by attaching an auxiliary belt to a belt body having a flat conveyance surface, it is possible to convey the glass film and the belt body in a non-contact state.
  • the second conveyance step includes conveyance using a belt conveyor device that conveys the treated glass film along the lateral direction.
  • the belt conveyor device may include a belt main body and an auxiliary belt that is detachable from the belt main body, and the auxiliary belt may support both ends of the treated glass film.
  • the unnecessary portion of the glass film with unnecessary portions being conveyed along the lateral direction is removed.
  • a sliding support device for movable support may also be used. According to this method, the glass film with unnecessary parts being transported can be easily supported in a state where the glass film is not in contact with the glass film.
  • both ends in the width direction of the treated glass film conveyed along the lateral direction are rubbed.
  • a sliding support device for movable support may also be used.
  • the collecting device is a winding device that winds up the glass film, or a sheet winding device that collects the glass film sheet by sheet. It may also be a collection device.
  • the glass film in any one of aspects 1 to 11, may be composed of alkali aluminosilicate glass having a thickness dimension of 0.3 mm or less.
  • the manufacturing method described above makes it possible to increase the yield especially in the manufacturing of glass films made of alkali aluminosilicate glass, which is prone to scratches and defects on the surface during the transportation process.
  • a glass film manufacturing apparatus is a glass film manufacturing apparatus, comprising: a forming apparatus for molding a glass film with unnecessary parts provided with unnecessary parts along both sides in the width direction; a processing device for obtaining a treated glass film by separating and removing at least a portion of the unnecessary portion of the film; a collection device for collecting the treated glass film; A first transport device that transports the glass film with unnecessary parts; and a second transport device that transports the treated glass film from the processing device to the collection device, the first transport device and the second transport device.
  • the glass film with unnecessary parts or the treated glass film is transported in a state where no member other than the transport sheet that is softer than the glass film comes into contact with the glass film that becomes the product.
  • a method for manufacturing a glass film according to aspect 14 includes a forming step of forming a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a molding device. and a conveyance step of conveying the glass film with unnecessary parts, or the treated glass film that has been subjected to a process of separating and removing at least a part of the unnecessary parts from the glass film with unnecessary parts, to a collection device.
  • the glass film with unnecessary parts or the treated glass film is conveyed in a state where no member other than the conveyance sheet, which is softer than the glass film, comes into contact with the glass film that becomes the product.
  • the present invention exhibits the effect of reducing scratches on the main surface of a glass film.
  • FIG. 1 is a schematic side view showing a glass film manufacturing apparatus in an embodiment.
  • FIG. 2 is a schematic plan view showing a glass film manufacturing apparatus.
  • FIG. 3 is a schematic cross-sectional view showing the processing device.
  • FIG. 4 is a schematic cross-sectional view showing the belt conveyor device.
  • FIG. 5 is a schematic perspective view showing the belt conveyor device.
  • FIG. 6 is a schematic cross-sectional view showing the sliding support device.
  • FIG. 7 is a schematic perspective view showing the sliding support device.
  • FIG. 8 is a schematic cross-sectional view showing the first contact conveyance device.
  • FIG. 9 is a schematic perspective view showing the first contact conveyance device.
  • the glass film manufacturing device 11 includes a molding device 12, a processing device 13, and a collecting device 14.
  • the glass film manufacturing apparatus 11 further includes a first conveyance device 15 and a second conveyance device 16.
  • Glass films are used, for example, as materials for devices that require light weight and bendability.
  • the thickness dimension of the glass film is preferably 0.3 mm or less, more preferably 0.1 mm or less, still more preferably 0.05 mm or less, and most preferably 0.035 mm or less.
  • the lower limit of the thickness of the glass film is, for example, 0.005 mm or more.
  • a glass film having such a thickness is called ultra thin glass (UTG).
  • UTG ultra thin glass
  • Examples of the glass constituting the glass film include soda glass, soda lime glass, borosilicate glass, aluminosilicate glass, and alkali-free glass.
  • the glass film may be a glass film for chemical strengthening.
  • Examples of the glass for chemical strengthening include alkali aluminosilicate glass containing an alkali metal oxide as a glass composition, soda glass, and the like.
  • the metal oxide contained in the alkali aluminosilicate glass is preferably at least one selected from Li 2 O, Na 2 O, and K 2 O.
  • the chemically strengthened glass is preferably alkali aluminosilicate glass.
  • the alkali aluminosilicate glass contains, in mass %, for example, SiO 2 : 50-80%, Al 2 O 3 : 5-25%, B 2 O 3 : 0-15%, Li 2 O: 0-20%, Na. It is preferable to contain 2 O: 1 to 20% and K 2 O: 0 to 10%.
  • a glass film with unnecessary parts and a treated glass film which will be described later, have the same glass composition as the above-mentioned glass film.
  • the glass film manufacturing method of the present embodiment is suitable when the Vickers hardness of the glass film is 585 or less, particularly 570 or less, 560 or less, or 555 or less.
  • the Vickers hardness of the glass film is low, the surface is particularly susceptible to scratches, so it is easier to enjoy the scratch prevention effect.
  • the Vickers hardness described in this specification refers to a value measured based on a method based on JIS Z2244 with a measurement load of 100 gf.
  • a molding device 12 of a glass film manufacturing device 11 molds a glass film G1 with unnecessary parts from molten glass.
  • the glass film G1 with unnecessary parts includes a glass film to be a product and unnecessary parts G1a and G1b provided on both sides of the glass film in the width direction.
  • the unnecessary parts G1a and G1b are unnecessary glass films that are not used as products.
  • the glass film used as a product may be simply referred to as glass film Gp.
  • the molding device 12 molds the glass film G1 with unnecessary parts by, for example, an overflow down-draw method.
  • the molding device 12 includes a molding section 12a having a groove through which molten glass flows.
  • the molten glass supplied to the groove of the forming part 12a overflows.
  • the overflowing molten glass flows down along both sides of the molding section 12a.
  • the molten glass that has flown down in this way joins together at the lower end of the molding section 12a, so that a film-like molten glass is obtained.
  • the film-like molten glass is pulled in the vertical direction along the Z axis in the drawing.
  • the direction in which the film-like molten glass is pulled may be inclined, for example, within a range of 30° with respect to the vertical direction.
  • the molding device 12 includes an edge roller (not shown), an annealer placed below the edge roller, and the like. Both ends of the film-like molten glass are pulled downward while being sandwiched between edge rollers. The film-like molten glass is guided to an annealer. In the annealer, a glass film G1 with unnecessary parts is obtained by subjecting the film-like molten glass to a strain removal treatment.
  • the molding device 12 can also be changed to a device that molds a glass film by a method other than the overflow down-draw method.
  • the molding device 12 may be, for example, a molding device using a slot down-draw method in which molten glass is caused to flow down from a slot-shaped opening. Further, the molding device 12 may be a device that molds a glass film using, for example, a redraw method that reshapes a sheet-like base material glass.
  • the processing device 13 of the glass film manufacturing apparatus 11 performs a process of separating and removing at least a portion of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts.
  • This is an apparatus for obtaining treated glass film G2.
  • the processing device 13 includes, for example, a laser irradiation device 17 and a positioning device 18.
  • the laser irradiation device 17 has a pair of laser light irradiation parts 17a and 17b.
  • the pair of laser beam irradiation parts 17a and 17b are arranged corresponding to the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts, respectively.
  • the pair of laser light irradiation units 17a and 17b fuse and cut the glass film G1 with unnecessary parts by irradiating both sides of the glass film G1 with unnecessary parts with laser light LB.
  • the laser beam LB is irradiated along the length direction of the glass film G1 with unnecessary parts. Thereby, the glass film G1 with unnecessary parts can be separated into the treated glass film G2 and the unnecessary glass films Ga and Gb.
  • the treated glass film G2 may be composed only of the glass film Gp used as a product, or may include part of the unnecessary parts G1a and G1b. That is, the processing device 13 may be a device that removes the entire unnecessary portions G1a, G1b, or may be a device that partially removes the unnecessary portions G1a, G1b.
  • the processed glass film G2 obtained by the processing apparatus 13 of this embodiment includes a glass film Gp and a portion of unnecessary parts G1a and G1b.
  • the processing device 13 can also be configured to cut the glass by applying a thermal shock to the heated glass using laser light.
  • the processing device 13 may include a laser irradiation device 17 and a cooling device that cools the glass heated by the laser.
  • the processing device 13 can also be configured to form a scribe line on the glass film G1 with unnecessary parts and then cut the glass film G1 with unnecessary parts along the scribe lines.
  • the processing device 13 can also be configured to mechanically cut the glass film G1 with unnecessary parts using a wire saw, a circular saw, or the like.
  • the positioning device 18 of the processing device 13 positions the heights of the unnecessary parts G1a and G1b in a state where the glass film Gp is bent downward.
  • the positioning device 18 has suction parts 18a and 18b.
  • the suction parts 18a and 18b are arranged to face the laser light irradiation parts 17a and 17b.
  • the suction parts 18a, 18b have suction holes (not shown). The suction holes are open on the upper surfaces of the suction parts 18a and 18b.
  • the suction parts 18a and 18b suction the portions to be irradiated with the laser beam LB in the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by suctioning gas from the suction holes.
  • This makes it possible to suppress lifting of the portion of the unnecessary portions G1a and G1b that is irradiated with the laser beam LB. Therefore, it is possible to stabilize the distance between the unnecessary portions G1a and G1b that are irradiated with the laser beam LB and the laser beam irradiation parts 17a and 17b.
  • the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts may be in contact with the suction parts 18a and 18b, or may be in a non-contact state with the suction parts 18a and 18b.
  • the positioning device 18 includes first floating parts 18c and 18d and second floating parts 18e and 18f, which are provided corresponding to the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts.
  • the first floating parts 18c and 18d are arranged outside the suction parts 18a and 18b in the width direction of the glass film G1 with unnecessary parts.
  • the second floating parts 18e and 18f are arranged inside the suction parts 18a and 18b in the width direction of the glass film G1 with unnecessary parts.
  • the first floating parts 18c, 18d and the second floating parts 18e, 18f have injection holes (not shown).
  • the first floating parts 18c, 18d and the second floating parts 18e, 18f float the unnecessary parts G1a, G1b of the glass film G1 with unnecessary parts by injecting gas upward from the injection holes.
  • the flow of gas is shown by broken line arrows.
  • the suction parts 18a and 18b are arranged between the first floating parts 18c and 18d and the second floating parts 18e and 18f.
  • the suction of the unnecessary parts G1a and G1b between the first floating parts 18c and 18d and the second floating parts 18e and 18f becomes more stable.
  • the positioning device 18 includes a glass film floating section 18g that floats the glass film Gp.
  • the glass film floating portion 18g has injection holes (not shown).
  • the glass film floating section 18g injects gas from the injection hole toward the glass film Gp.
  • the glass film Gp is floated by gas injected toward the glass film Gp from below.
  • the collection device 14 of the glass film manufacturing apparatus 11 collects the treated glass film G2.
  • the winding device which is an example of the collection device 14, includes a winding roller 14a and a drive unit (not shown) that rotationally drives the winding roller 14a.
  • the collection device 14 includes a protective sheet roll PSR wound with a protective sheet PS that protects the treated glass film G2.
  • the collecting device 14 supplies the protective sheet PS unreeled from the protective sheet roll PSR so as to overlap the treated glass film G2.
  • the take-up roller 14a of the collection device 14 winds up the treated glass film G2 and the protective sheet PS into a roll in a state where the treated glass film G2 and the protective sheet PS are overlapped. Thereby, a glass film roll GR is obtained.
  • the protective sheet PS a sheet that is softer than the treated glass film G2 is used. That is, the protective sheet PS is a sheet that does not cause scratches on the glass film Gp when it rubs against the glass film Gp.
  • the protective sheet PS is preferably a resin sheet, more preferably a foamed resin sheet.
  • the collecting device 14 may be a sheet collecting device that collects the treated glass film G2 sheet by sheet.
  • the sheet collecting device is arranged with a cutting device that cuts the treated glass film G2 to a predetermined length, and a predetermined length of the treated glass film and a predetermined length of a protective sheet overlapped with each other. and a superposition device.
  • the collecting device 14 may be configured to collect the treated glass film G2 without using the protective sheet PS.
  • the first transport device 15 of the glass film manufacturing apparatus 11 transports the glass film G1 with unnecessary parts from the molding device 12 to the processing device 13.
  • the first transport device 15 is configured to be able to continuously transport the elongated glass film G1 with unnecessary parts formed by the molding device 12 to the processing device 13 .
  • the first conveyance device 15 includes a direction change device 19, a belt conveyor device 20, a sliding support device 21, and a first contact conveyance device 22 in order from the upstream side.
  • the direction changing device 19 of the first conveying device 15 changes the traveling direction of the glass film G1 with unnecessary parts conveyed from the forming device 12 from the vertical direction to the horizontal direction.
  • the direction changing device 19 includes a plurality of direction changing rollers 19a and 19b.
  • the plurality of direction conversion rollers 19a and 19b support only both unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts.
  • Such a direction changing device 19 is kept in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts.
  • the plurality of direction changing rollers 19a, 19b are arranged in a curved shape when viewed from the axial direction of the direction changing rollers 19a, 19b.
  • the plurality of direction changing rollers 19a and 19b guide the glass film G1 with unnecessary parts from the vertical direction to the lateral direction.
  • the glass film G1 with unnecessary parts is guided in the horizontal direction along the X axis in the drawing.
  • the glass film G1 with unnecessary parts may be guided in a direction inclined with respect to the horizontal direction.
  • the glass film G1 with unnecessary parts is preferably guided in a direction within a range of less than 45° vertically with respect to the horizontal direction, and may not be guided in a direction within a range of less than 30°. More preferred.
  • the belt conveyor device 20 of the first conveyance device 15 conveys the glass film G1 with unnecessary parts along the lateral direction.
  • the belt conveyor device 20 includes a belt main body 20a and auxiliary belts 20b and 20c that are detachable from the belt main body 20a.
  • the belt conveyor device 20 supports only the unnecessary parts G1a, G1b of the glass film G1 with unnecessary parts by the auxiliary belts 20b, 20c.
  • the belt main body 20a is in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts.
  • the belt conveyor device 20 conveys the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward.
  • the auxiliary belts 20b and 20c have a connecting portion (not shown), and are formed into an endless shape by connecting belt-shaped belts at the connecting portion.
  • the auxiliary belts 20b and 20c are spaced apart from each other in the width direction of the belt main body 20a.
  • the auxiliary belts 20b and 20c can be attached to the belt main body 20a by connecting band-shaped belts at a connecting portion.
  • the auxiliary belts 20b and 20c can be detached from the belt main body 20a by releasing the connection at the connecting portion of the band-shaped belt.
  • the belt main body 20a of the belt conveyor device 20 has injection holes (not shown).
  • the belt main body 20a injects gas toward the glass film Gp from the injection holes.
  • the glass film Gp is floated by gas injected toward the glass film Gp from below.
  • the sliding support device 21 of the first conveyance device 15 slides the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts being conveyed along the lateral direction. support possible.
  • the sliding support device 21 includes a base portion 21a and sliding support portions 21b and 21c provided on the base portion 21a.
  • the sliding support device 21 supports only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by the sliding support parts 21b and 21c.
  • the sliding support device 21 supports the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward.
  • the sliding support parts 21b and 21c are arranged apart from each other in the width direction of the base part 21a.
  • the material for the sliding support portions 21b and 21c include resin materials, metal materials, glass, and ceramics.
  • the material of the sliding support portions 21b and 21c is preferably a resin material.
  • the resin material include fluororesin, polyolefin, and the like.
  • the resin material can also contain an antistatic agent such as a carbon-based material.
  • the base portion 21a of the sliding support device 21 is kept in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts.
  • the base portion 21a has an injection hole (not shown).
  • the base part 21a injects gas toward the glass film Gp from the injection hole.
  • the glass film Gp is floated by gas injected toward the glass film Gp from below.
  • the first contact conveyance device 22 of the first conveying device 15 transfers the first conveying sheet CS1, which is softer than the glass film Gp, to the glass film with unnecessary parts.
  • the glass film G1 with unnecessary parts is conveyed by contacting the glass film G1.
  • the first contact conveyance device 22 includes a first conveyance section 22a and a first conveyance sheet supply section 22b that continuously supplies the first conveyance sheet CS1 onto the first conveyance section 22a.
  • the first conveyance sheet supply section 22b includes a conveyance sheet roll CSR around which the first conveyance sheet CS1 is wound.
  • the first conveying sheet supplying section 22b supplies the first conveying sheet CS1 fed out from the conveying sheet roll CSR between the first conveying section 22a and the glass film G1 with unnecessary parts.
  • the first conveying sheet CS1 supplied onto the first conveying section 22a is moved toward the processing device 13. By placing the glass film G1 with unnecessary parts on the transport sheet that is moved in this way, the glass film G1 with unnecessary parts can be transported. After passing over the first conveyance section 22a, the first conveyance sheet CS1 is retracted downward, thereby separating from the glass film G1 with unnecessary parts.
  • the first conveyance unit 22a may be a conveyance table having an upper surface on which the first conveyance sheet CS1 is slid, or a belt conveyor device having a belt on which the first conveyance sheet CS1 is placed. Good too.
  • the first conveyance sheet CS1 is not particularly limited as long as it does not cause scratches on the glass film Gp when it rubs against the glass film Gp.
  • the first conveying sheet CS1 is preferably a resin sheet, more preferably a foamed resin sheet.
  • the second conveyance device 16 of the glass film manufacturing apparatus 11 includes a second contact conveyance device 23.
  • the second contact conveyance device 23 conveys the treated glass film G2 by bringing the second conveyance sheet CS2, which is softer than the glass film Gp, into contact with the treated glass film G2.
  • the second contact conveyance device 23 includes a second conveyance section 23a and a second conveyance sheet supply section 23b that continuously supplies the second conveyance sheet CS2 onto the second conveyance section 23a.
  • the second conveying sheet supply section 23b supplies the first conveying sheet CS1 used in the first contact conveying device 22 as a second conveying sheet CS2 to the second conveying sheet 23a and the processed glass film G2 from below the processing device 13. Supply between. That is, the second conveyance sheet CS2 is a reused sheet of the first conveyance sheet CS1.
  • the second conveyance sheet CS2 supplied onto the second conveyance section 23a is moved toward the collection device 14. By placing the treated glass film G2 on the second conveyance sheet CS2 that is moved in this way, the treated glass film G2 can be conveyed. After passing through the second conveyance section 23a, the second conveyance sheet CS2 is wound up by a winder (not shown).
  • the method for manufacturing the glass film Gp includes a molding process, a treatment process, a first conveyance process, and a second conveyance process. As shown in FIGS. 1 and 2, in the molding process, the glass film G1 with unnecessary parts is molded using a molding device 12. In the treatment step, a treated glass film G2 is obtained by performing a process of separating and removing at least part of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts using the processing apparatus 13.
  • the glass film G1 with unnecessary parts is conveyed from the molding device 12 to the processing device 13.
  • the treated glass film G2 is conveyed from the treatment device 13 to the collection device 14 that collects the treated glass film G2.
  • the glass film G1 with unnecessary parts or the treated glass film G2 is conveyed in a state where no member other than the conveyance sheet that is softer than the glass film Gp contacts the glass film Gp.
  • the collecting device 14 for example, a collecting step of winding up the treated glass film G2 is performed, thereby obtaining a glass film roll GR.
  • the method for manufacturing glass film Gp is a method for manufacturing glass film Gp.
  • the method for manufacturing the glass film Gp is such that in the first conveyance step and the second conveyance step, the glass film G1 with unnecessary portions or the processed
  • the glass film G2 is transported.
  • the direction changing device 19, belt conveyor device 20, and sliding support device 21 used in the first conveyance step are in a non-contact state with the glass film Gp.
  • the first conveyance sheet CS1 or the second conveyance sheet that is softer than the glass film Gp is used in the first contact conveyance sheet CS1 or the second conveyance sheet that is softer than the glass film Gp is used.
  • the processing device 13 used in the method for manufacturing the glass film Gp includes a positioning device 18 that positions the heights of the unnecessary portions G1a and G1b while the glass film Gp is bent downward.
  • the processing step can be performed in a state where the positions of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are stabilized. Therefore, for example, it is possible to improve the quality of the end faces in the width direction of the treated glass film G2.
  • the first conveyance step is a state in which the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are supported, and the glass film Gp is bent downward and the unnecessary parts are attached.
  • the glass film Gp of the glass film G1 with unnecessary parts is floated by gas injected from below toward the glass film Gp.
  • the glass film G1 with unnecessary parts can be transported while maintaining the state in which members other than the above-mentioned transporting sheet do not contact the glass film Gp, while stabilizing the posture of the glass film Gp.
  • the first conveying step includes a direction changing step of changing the traveling direction of the glass film G1 with unnecessary parts conveyed from the forming device 12 from the vertical direction to the horizontal direction.
  • the direction changing step only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are supported by a plurality of direction changing rollers 19a that guide them from the vertical direction to the horizontal direction.
  • the direction of the glass film G1 with unnecessary parts transported in the vertical direction from the molding device 12 can be easily changed to the horizontal direction.
  • the first conveyance step includes conveyance using the belt conveyor device 20 that conveys the glass film G1 with unnecessary parts along the lateral direction.
  • the belt conveyor device 20 includes a belt main body 20a and auxiliary belts 20b and 20c that are detachable from the belt main body 20a.
  • the belt conveyor device 20 supports only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by auxiliary belts 20b and 20c.
  • the auxiliary belts 20b and 20c can be transported in a non-contact state.
  • the thickness dimensions of the auxiliary belts 20b and 20c it is possible to adjust the height of the glass film G1 with unnecessary parts.
  • a sliding support device 21 that slidably supports the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts being conveyed along the lateral direction is used. I am using it. In this case, the glass film G1 with unnecessary parts being conveyed can be easily supported without contacting the glass film Gp.
  • Glass films made of alkali aluminosilicate glass are prone to scratches and defects on the surface, especially during the transportation process. Applying the above method for producing glass film Gp to the production of a glass film composed of such alkali aluminosilicate glass is particularly advantageous, for example, from the viewpoint of increasing the yield.
  • the second conveyance step may include a step of conveying the treated glass film G2 in a state in which both ends of the treated glass film G2 in the width direction are supported and the glass film Gp is bent downward. At this time, unnecessary parts G1a and G1b left at both ends of the treated glass film G2 are supported. In this case, the treated glass film G2 can be transported with its posture stabilized.
  • the second conveyance step may include conveyance using a belt conveyor device having the same configuration as the belt conveyor device 20 described above. That is, in the second conveyance step, the treated glass film G2 can also be conveyed by supporting the unnecessary portions G1a and G1b left at both ends of the treated glass film G2 by the auxiliary belts 20b and 20c of the belt conveyor device. . In this case, the same effect as described in column (6) above can be obtained in the second conveyance step.
  • a sliding support device having the same configuration as the sliding support device 21 may be used. That is, in the second conveyance step, both ends of the treated glass film G2 in the width direction may be supported by sliding support parts of a sliding support device. At this time, the unnecessary portions G1a and G1b remaining at both ends of the treated glass film G2 are supported by the sliding support portions. In this case, the same effect as described in column (7) above can be obtained in the second conveyance step.
  • the glass film Gp may be floated by gas injected from below toward the glass film Gp.
  • the treated glass film G2 can be transported while maintaining the state in which members other than the above-mentioned transporting sheet do not contact the glass film Gp, while stabilizing the attitude of the glass film Gp.
  • the above-mentioned second conveyance step can also be performed without using the second contact conveyance device 23.
  • the above-mentioned first conveyance step can also be performed without using the sliding support device 21.
  • the above-mentioned first conveyance step can also be performed without using the first contact conveyance device 22.
  • the first conveying sheet CS1 of the first contact conveying device 22 and the second conveying sheet CS2 of the second contact conveying device 23 can also be supplied from mutually independent conveying sheet rolls.
  • the direction changing step in the first transport step can be omitted.
  • An example of a molding device that transports the glass film G1 with unnecessary parts in the lateral direction is a molding device using a float method.
  • gas is injected from below toward the glass film Gp, but the injection of this gas can also be omitted.
  • the first conveyance step includes a step of injecting gas toward the glass film Gp from below and conveying it, the injection of gas can also be omitted. That is, for example, in the belt conveyor device 20, the glass film Gp is levitated by gas injected toward the glass film Gp, but this levitation can also be omitted.
  • the sliding support device 21 floating of the glass film Gp can also be omitted.
  • the auxiliary belts 20b and 20c of the belt conveyor device 20 may be changed to a belt conveyor device configured to be driven independently of the belt main body 20a.
  • the belt main body 20a may be omitted and, for example, a flotation device may be provided to eject gas toward the glass film Gp and levitate the glass film Gp.
  • the above-mentioned first conveyance process includes a process of conveying the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward, but it is changed to a process in which the glass film Gp is conveyed without being bent downward. Good too.
  • the processing device 13 is equipped with a positioning device 18 that positions the height of the unnecessary portions G1a and G1b in a state where the glass film Gp is bent downward, this positioning device 18 can also be omitted.
  • the transporting step of the method for manufacturing the glass film Gp includes transporting the treated glass film G2, which has been subjected to a process of separating and removing at least part of the unnecessary parts G1a and G1b from the glass film G1 with unnecessary parts, to the collection device 14. ing.
  • This conveyance process can also be changed to a conveyance process in which the glass film G1 with unnecessary parts is conveyed to the collection device 14. In this case, treatments other than the above-mentioned treatments, such as surface treatment of the glass film Gp, may be performed during the conveyance process.
  • the processing step in the method for manufacturing the glass film Gp may be changed to a step in which one of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts is processed, and then the other unnecessary part is processed. can. Furthermore, the treatment step in the method for manufacturing the glass film Gp can be changed to a step of treating only one of the unnecessary portions G1a and G1b of the glass film G1 with unnecessary portions. That is, the entire unnecessary portion may be left on one side of both sides of the treated glass film G2.

Abstract

A production method for a glass film according to an embodiment of the present disclosure comprises: a shaping step for shaping a glass film (G1) having an unwanted part attached thereto using a shaping device (12); and a processing step for performing a process of separating and removing at least a portion of the unwanted part from the glass film (G1) having an unwanted part attached thereto using a processing device (13). The production method for a glass film comprises: a first conveying step for conveying the glass film (G1) having an unwanted part attached thereto from the shaping device (12) to the processing device (13); and a second conveying step for conveying the processed glass film (G2) from the processing device (13) to a collection device (14) that collects the processed glass film (G2). In the conveying steps, the glass film (G1) having an unwanted part attached thereto or the processed glass film (G2) is conveyed in a state in which the glass film that becomes a product does not contact any member other than a conveyance sheet such as a conveyance sheet (CS1) that is softer than the glass film.

Description

ガラスフィルムの製造方法、及びガラスフィルムの製造装置Glass film manufacturing method and glass film manufacturing device
　本発明は、ガラスフィルムの製造方法、及びガラスフィルムの製造装置に関する。 The present invention relates to a glass film manufacturing method and a glass film manufacturing apparatus.
　特許文献１に記載されるように、ガラスフィルムの製造方法は、成形装置を用いてガラスフィルムを成形する成形工程を備えている。このような成形工程では、製品となるガラスフィルム（つまり、品質を保証する部分）とガラスフィルムの幅方向の両側縁に設けられた不要部とを有する不要部付きガラスフィルムが得られる。ガラスフィルムの製造方法では、不要部付きガラスフィルムの不要部の少なくとも一部を除去する処理が行われた後、例えば、巻取装置で巻き取られる。 As described in Patent Document 1, a method for manufacturing a glass film includes a molding step of molding a glass film using a molding device. In such a forming process, a glass film with unnecessary parts is obtained, which has a glass film to be a product (that is, a part that guarantees quality) and unnecessary parts provided on both sides of the glass film in the width direction. In the method for manufacturing a glass film, after a process of removing at least a portion of the unnecessary portion of the glass film with unnecessary portions is performed, the glass film is wound up using a winding device, for example.
特開２０２１－０８４８２９号公報Japanese Patent Application Publication No. 2021-084829
　上記のように、成形工程で成形された不要部付きガラスフィルムを処理した後、巻取装置等で収集されるまでにガラスフィルムの主面に傷が生じることがある。
　本発明の目的は、ガラスフィルムの主面の傷を削減することのできるガラスフィルムの製造方法、及びガラスフィルムの製造装置を提供することにある。 As described above, after the glass film with unnecessary parts formed in the molding process is processed, scratches may occur on the main surface of the glass film before it is collected by a winding device or the like.
An object of the present invention is to provide a glass film manufacturing method and a glass film manufacturing apparatus that can reduce scratches on the main surface of the glass film.
　上記課題を解決するガラスフィルムの製造方法、及びガラスフィルムの製造装置の各態様について説明する。
　態様１のガラスフィルムの製造方法は、製品となるガラスフィルムと前記ガラスフィルムの幅方向の両側縁に設けられた不要部とを有する不要部付きガラスフィルムを、成形装置を用いて成形する成形工程と、前記不要部付きガラスフィルムの前記不要部の少なくとも一部を処理装置で分離して除去する処理を行うことで、処理ガラスフィルムを得る処理工程と、前記成形装置から前記処理装置まで前記不要部付きガラスフィルムを搬送する第１搬送工程と、前記処理ガラスフィルムを前記処理装置から前記処理ガラスフィルムを収集する収集装置まで搬送する第２搬送工程と、を備え、前記第１搬送工程及び前記第２搬送工程では、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する。この方法によれば、第１搬送工程及び第２搬送工程において、ガラスフィルムの主面に他の部材が接触することを要因とした傷の発生を防止することができる。従って、ガラスフィルムの主面の傷を削減することができる。 Each aspect of a glass film manufacturing method and a glass film manufacturing apparatus that solves the above problems will be described.
A method for producing a glass film according to aspect 1 includes a forming step of forming a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a forming apparatus. a processing step of obtaining a treated glass film by separating and removing at least a portion of the unnecessary portion of the glass film with unnecessary portions in a processing device; a first conveying step of conveying a glass film with parts, and a second conveying step of conveying the treated glass film from the processing device to a collecting device that collects the treated glass film, the first conveying step and the In the second conveyance step, the glass film with unnecessary parts or the treated glass film is conveyed in a state where no member other than the conveyance sheet that is softer than the glass film comes into contact with the glass film that becomes the product. According to this method, it is possible to prevent scratches caused by other members coming into contact with the main surface of the glass film in the first conveyance step and the second conveyance step. Therefore, scratches on the main surface of the glass film can be reduced.
　態様２のガラスフィルムの製造方法では、態様１において、前記処理装置は、前記ガラスフィルムが下方に撓んだ状態で前記不要部の高さを位置決めする位置決め装置を備えてもよい。この方法によれば、例えば、不要部付きガラスフィルムの不要部の位置を安定させた状態で処理工程を行うことができる。 In the method for manufacturing a glass film according to Aspect 2, in Aspect 1, the processing device may include a positioning device that positions the height of the unnecessary portion while the glass film is bent downward. According to this method, for example, the processing step can be performed while the position of the unnecessary part of the glass film with unnecessary parts is stabilized.
　態様３のガラスフィルムの製造方法では、態様１又は態様２において、前記第１搬送工程は、前記不要部付きガラスフィルムの前記不要部を支持した状態であり、前記ガラスフィルムが下方に撓んだ状態で前記不要部付きガラスフィルムを搬送する工程を含んでもよい。この方法によれば、不要部付きガラスフィルムの姿勢を安定させて搬送することができる。 In the method for producing a glass film according to Aspect 3, in Aspect 1 or Aspect 2, the first conveying step is in a state in which the unnecessary part of the glass film with unnecessary part is supported, and the glass film is bent downward. The method may also include a step of conveying the glass film with unnecessary parts in the state. According to this method, the posture of the glass film with unnecessary parts can be stabilized and transported.
　態様４のガラスフィルムの製造方法では、態様１から態様３のいずれか一つの態様において、前記第２搬送工程は、前記処理ガラスフィルムの幅方向の両端部を支持した状態であり、前記ガラスフィルムが下方に撓んだ状態で前記処理ガラスフィルムを搬送する工程を含んでもよい。この方法によれば、処理ガラスフィルムの姿勢を安定させて搬送することができる。 In the method for manufacturing a glass film according to aspect 4, in any one of aspects 1 to 3, the second conveying step is in a state in which both ends of the treated glass film in the width direction are supported, and the glass film is The method may include a step of conveying the treated glass film in a state where the glass film is bent downward. According to this method, the posture of the treated glass film can be stabilized and transported.
　態様５のガラスフィルムの製造方法では、態様１から態様４のいずれか一つの態様において、前記ガラスフィルムは、下方から前記ガラスフィルムに向かって噴射される気体により浮上されていてもよい。この場合、上述した搬送用シート以外の部材がガラスフィルムに接触しない状態を維持しつつ、ガラスフィルムの姿勢を安定させて不要部付きガラスフィルム又は処理ガラスフィルムを搬送することができる。 In the method for manufacturing a glass film according to Aspect 5, in any one of Aspects 1 to 4, the glass film may be floated by a gas injected toward the glass film from below. In this case, the glass film with unnecessary parts or the treated glass film can be transported while maintaining the state in which members other than the above-mentioned transport sheet do not come into contact with the glass film while stabilizing the posture of the glass film.
　態様６のガラスフィルムの製造方法では、態様１から態様５のいずれか一つの態様において、前記第１搬送工程は、前記成形装置から搬送された前記不要部付きガラスフィルムの進行方向を縦方向から横方向へ変換する方向変換工程を含み、前記方向変換工程において、前記不要部付きガラスフィルムの前記不要部のみを前記縦方向から前記横方向へ案内する複数の方向変換用ローラーで支持してもよい。この方法によれば、例えば、成形装置から縦方向に搬送される不要部付きガラスフィルムを横方向に容易に方向変換することができる。 In the method for manufacturing a glass film according to aspect 6, in any one of aspects 1 to 5, in the first conveying step, the traveling direction of the glass film with unnecessary parts conveyed from the forming device is changed from the vertical direction. The method may include a direction changing step of converting to a horizontal direction, and in the direction changing step, only the unnecessary portion of the glass film with unnecessary portions may be supported by a plurality of direction changing rollers that guide only the unnecessary portion from the vertical direction to the horizontal direction. good. According to this method, for example, it is possible to easily change the direction of a glass film with an unnecessary portion that is conveyed from a molding device in a vertical direction to a horizontal direction.
　態様７のガラスフィルムの製造方法では、態様１から態様６のいずれか一つの態様において、前記第１搬送工程では、横方向に沿って前記不要部付きガラスフィルムを搬送するベルトコンベア装置を用いる搬送を含み、前記ベルトコンベア装置は、ベルト本体と、前記ベルト本体に着脱可能な補助ベルトと、を備え、前記補助ベルトにより前記不要部付きガラスフィルムの前記不要部のみを支持してもよい。この方法によれば、例えば、平坦な搬送面を有するベルト本体に補助ベルトを装着することで、ガラスフィルムとベルト本体とを非接触とした状態で搬送することができる。 In the method for manufacturing a glass film according to aspect 7, in any one of aspects 1 to 6, the first conveyance step includes conveyance using a belt conveyor device that conveys the glass film with unnecessary parts along the lateral direction. The belt conveyor device may include a belt main body and an auxiliary belt detachable from the belt main body, and the auxiliary belt may support only the unnecessary portion of the glass film with unnecessary portions. According to this method, for example, by attaching an auxiliary belt to a belt body having a flat conveyance surface, it is possible to convey the glass film and the belt body in a non-contact state.
　態様８のガラスフィルムの製造方法では、態様１から態様７のいずれか一つの態様において、前記第２搬送工程では、横方向に沿って前記処理ガラスフィルムを搬送するベルトコンベア装置を用いる搬送を含み、前記ベルトコンベア装置は、ベルト本体と、前記ベルト本体に着脱可能な補助ベルトと、を備え、前記補助ベルトにより前記処理ガラスフィルムの両端部を支持してもよい。 In the method for producing a glass film according to aspect 8, in any one of aspects 1 to 7, the second conveyance step includes conveyance using a belt conveyor device that conveys the treated glass film along the lateral direction. The belt conveyor device may include a belt main body and an auxiliary belt that is detachable from the belt main body, and the auxiliary belt may support both ends of the treated glass film.
　態様９のガラスフィルムの製造方法では、態様１から態様８のいずれか一つの態様において、前記第１搬送工程では、横方向に沿って搬送される前記不要部付きガラスフィルムの前記不要部を摺動可能に支持する摺動支持装置を用いてもよい。この方法によれば、搬送される不要部付きガラスフィルムを、ガラスフィルムを非接触とした状態で容易に支持することができる。 In the method for manufacturing a glass film according to aspect 9, in any one of aspects 1 to 8, in the first conveying step, the unnecessary portion of the glass film with unnecessary portions being conveyed along the lateral direction is removed. A sliding support device for movable support may also be used. According to this method, the glass film with unnecessary parts being transported can be easily supported in a state where the glass film is not in contact with the glass film.
　態様１０のガラスフィルムの製造方法では、態様１から態様９のいずれか一つの態様において、前記第２搬送工程では、横方向に沿って搬送される前記処理ガラスフィルムの幅方向の両端部を摺動可能に支持する摺動支持装置を用いてもよい。 In the method for manufacturing a glass film according to aspect 10, in any one of aspects 1 to 9, in the second conveyance step, both ends in the width direction of the treated glass film conveyed along the lateral direction are rubbed. A sliding support device for movable support may also be used.
　態様１１のガラスフィルムの製造方法では、態様１から態様１０のいずれか一つの態様において、前記収集装置は、前記ガラスフィルムを巻き取る巻取装置、又は前記ガラスフィルムを枚葉で収集する枚葉収集装置であってもよい。 In the method for manufacturing a glass film according to aspect 11, in any one of aspects 1 to 10, the collecting device is a winding device that winds up the glass film, or a sheet winding device that collects the glass film sheet by sheet. It may also be a collection device.
　態様１２のガラスフィルムの製造方法では、態様１から態様１１のいずれか一つの態様において、前記ガラスフィルムは、厚さ寸法が０．３ｍｍ以下のアリカリアルミノシリケートガラスから構成されてもよい。このように上記製造方法は、特に搬送工程において表面に傷欠陥が生じ易いアルカリアルミノシリケートガラスから構成されるガラスフィルムの製造において、歩留まりを高めることが可能となる。 In the method for manufacturing a glass film according to aspect 12, in any one of aspects 1 to 11, the glass film may be composed of alkali aluminosilicate glass having a thickness dimension of 0.3 mm or less. In this manner, the manufacturing method described above makes it possible to increase the yield especially in the manufacturing of glass films made of alkali aluminosilicate glass, which is prone to scratches and defects on the surface during the transportation process.
　態様１３のガラスフィルムの製造装置は、ガラスフィルムの製造装置であって、幅方向の両側縁に沿って不要部が設けられた不要部付きガラスフィルムを成形する成形装置と、前記不要部付きガラスフィルムの前記不要部の少なくとも一部を分離して除去する処理を行うことで、処理ガラスフィルムを得る処理装置と、前記処理ガラスフィルムを収集する収集装置と、前記成形装置から前記処理装置まで前記不要部付きガラスフィルムを搬送する第１搬送装置と、前記処理ガラスフィルムを前記処理装置から前記収集装置まで搬送する第２搬送装置と、を備え、前記第１搬送装置及び前記第２搬送装置は、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する。 A glass film manufacturing apparatus according to aspect 13 is a glass film manufacturing apparatus, comprising: a forming apparatus for molding a glass film with unnecessary parts provided with unnecessary parts along both sides in the width direction; a processing device for obtaining a treated glass film by separating and removing at least a portion of the unnecessary portion of the film; a collection device for collecting the treated glass film; A first transport device that transports the glass film with unnecessary parts; and a second transport device that transports the treated glass film from the processing device to the collection device, the first transport device and the second transport device The glass film with unnecessary parts or the treated glass film is transported in a state where no member other than the transport sheet that is softer than the glass film comes into contact with the glass film that becomes the product.
　態様１４のガラスフィルムの製造方法は、製品となるガラスフィルムと前記ガラスフィルムの幅方向の両側縁に設けられた不要部とを有する不要部付きガラスフィルムを、成形装置を用いて成形する成形工程と、前記不要部付きガラスフィルム、又は、前記不要部付きガラスフィルムから前記不要部の少なくとも一部を分離して除去する処理を行った処理ガラスフィルムを、収集装置まで搬送する搬送工程と、を備え、前記搬送工程では、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する。 A method for manufacturing a glass film according to aspect 14 includes a forming step of forming a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a molding device. and a conveyance step of conveying the glass film with unnecessary parts, or the treated glass film that has been subjected to a process of separating and removing at least a part of the unnecessary parts from the glass film with unnecessary parts, to a collection device. In the conveyance step, the glass film with unnecessary parts or the treated glass film is conveyed in a state where no member other than the conveyance sheet, which is softer than the glass film, comes into contact with the glass film that becomes the product.
　本発明は、ガラスフィルムの主面の傷を削減する効果を発揮する。 The present invention exhibits the effect of reducing scratches on the main surface of a glass film.
図１は、実施形態におけるガラスフィルムの製造装置を示す概略側面図である。FIG. 1 is a schematic side view showing a glass film manufacturing apparatus in an embodiment. 図２は、ガラスフィルムの製造装置を示す概略平面図である。FIG. 2 is a schematic plan view showing a glass film manufacturing apparatus. 図３は、処理装置を示す概略断面図である。FIG. 3 is a schematic cross-sectional view showing the processing device. 図４は、ベルトコンベア装置を示す概略断面図である。FIG. 4 is a schematic cross-sectional view showing the belt conveyor device. 図５は、ベルトコンベア装置を示す概略斜視図である。FIG. 5 is a schematic perspective view showing the belt conveyor device. 図６は、摺動支持装置を示す概略断面図である。FIG. 6 is a schematic cross-sectional view showing the sliding support device. 図７は、摺動支持装置を示す概略斜視図である。FIG. 7 is a schematic perspective view showing the sliding support device. 図８は、第１接触搬送装置を示す概略断面図である。FIG. 8 is a schematic cross-sectional view showing the first contact conveyance device. 図９は、第１接触搬送装置を示す概略斜視図である。FIG. 9 is a schematic perspective view showing the first contact conveyance device.
　以下、ガラスフィルムの製造方法、及びガラスフィルムの製造装置の一実施形態について図面を参照して説明する。なお、図面では、説明の便宜上、構成の一部を誇張又は簡略化して示す場合がある。また、各部分の寸法比率についても、実際と異なる場合がある。 Hereinafter, an embodiment of a glass film manufacturing method and a glass film manufacturing apparatus will be described with reference to the drawings. Note that in the drawings, a part of the configuration may be exaggerated or simplified for convenience of explanation. Furthermore, the dimensional ratio of each part may also differ from the actual size.
　＜ガラスフィルムの製造装置＞
　図１及び図２に示すように、ガラスフィルムの製造装置１１は、成形装置１２と、処理装置１３と、収集装置１４とを備えている。ガラスフィルムの製造装置１１は、さらに第１搬送装置１５と、第２搬送装置１６とを備えている。 <Glass film manufacturing equipment>
As shown in FIGS. 1 and 2, the glass film manufacturing device 11 includes a molding device 12, a processing device 13, and a collecting device 14. The glass film manufacturing apparatus 11 further includes a first conveyance device 15 and a second conveyance device 16.
　ガラスフィルムは、例えば、軽量性や曲げ性が求められるデバイスの材料として用いられる。ガラスフィルムの厚さ寸法は、好ましくは、０．３ｍｍ以下であり、より好ましくは、０．１ｍｍ以下であり、さらに好ましくは０．０５ｍｍ以下であり、最も好ましくは、０．０３５ｍｍ以下である。ガラスフィルムの厚さ寸法の下限は、例えば、０．００５ｍｍ以上である。このような厚さ寸法のガラスフィルムは、超薄板ガラス（ＵＴＧ：Ｕｌｔｒａ　Ｔｈｉｎ　Ｇｌａｓｓ）と呼ばれる。ガラスフィルムを構成するガラスとしては、例えば、ソーダガラス、ソーダライムガラス、ホウケイ酸ガラス、アルミノシリケートガラス、無アルカリガラス等が挙げられる。ガラスフィルムは、化学強化用のガラスフィルムであってもよい。化学強化用ガラスとしては、例えば、ガラス組成としてアルカリ金属酸化物を含むアルカリアルミノシリケートガラス、ソーダガラス等が挙げられる。アルカリアルミノシリケートガラスに含まれる金属酸化物は、Ｌｉ２Ｏ、Ｎａ２Ｏ、及びＫ２Ｏから選ばれる少なくとも一種であることが好ましい。化学強化用ガラスは、アルカリアルミノシリケートガラスであることが好ましい。アルカリアルミノシリケートガラスは、質量％で、例えば、ＳｉＯ２：５０～８０％、Ａｌ２Ｏ３：５～２５％、Ｂ２Ｏ３：０～１５％、Ｌｉ２Ｏ：０～２０％、Ｎａ２Ｏ：１～２０％、Ｋ２Ｏ：０～１０％を含有することが好ましい。なお、本明細書において、後述する不要部付きガラスフィルム、及び処理ガラスフィルムの状態においても、上述のガラスフィルムと同様のガラス組成を有する。 Glass films are used, for example, as materials for devices that require light weight and bendability. The thickness dimension of the glass film is preferably 0.3 mm or less, more preferably 0.1 mm or less, still more preferably 0.05 mm or less, and most preferably 0.035 mm or less. The lower limit of the thickness of the glass film is, for example, 0.005 mm or more. A glass film having such a thickness is called ultra thin glass (UTG). Examples of the glass constituting the glass film include soda glass, soda lime glass, borosilicate glass, aluminosilicate glass, and alkali-free glass. The glass film may be a glass film for chemical strengthening. Examples of the glass for chemical strengthening include alkali aluminosilicate glass containing an alkali metal oxide as a glass composition, soda glass, and the like. The metal oxide contained in the alkali aluminosilicate glass is preferably at least one selected from Li 2 O, Na 2 O, and K 2 O. The chemically strengthened glass is preferably alkali aluminosilicate glass. The alkali aluminosilicate glass contains, in mass %, for example, SiO 2 : 50-80%, Al 2 O 3 : 5-25%, B 2 O 3 : 0-15%, Li 2 O: 0-20%, Na. It is preferable to contain 2 O: 1 to 20% and K 2 O: 0 to 10%. In addition, in this specification, a glass film with unnecessary parts and a treated glass film, which will be described later, have the same glass composition as the above-mentioned glass film.
　本実施形態のガラスフィルム製造方法は、ガラスフィルムのビッカース硬度が５８５以下である場合、特には５７０以下である場合、５６０以下である場合、５５５以下である場合に好適である。ガラスフィルムのビッカース硬度が小さい場合、特に表面に傷が付き易くなるため、傷防止の効果をより一層享受しやすい。なお、本明細書に記載するビッカース硬度は、測定荷重を１００ｇｆとし、ＪＩＳ　Ｚ２２４４に準拠した方法に基づいて測定した値を指す。 The glass film manufacturing method of the present embodiment is suitable when the Vickers hardness of the glass film is 585 or less, particularly 570 or less, 560 or less, or 555 or less. When the Vickers hardness of the glass film is low, the surface is particularly susceptible to scratches, so it is easier to enjoy the scratch prevention effect. In addition, the Vickers hardness described in this specification refers to a value measured based on a method based on JIS Z2244 with a measurement load of 100 gf.
　＜成形装置＞
　ガラスフィルムの製造装置１１の成形装置１２は、溶融ガラスから不要部付きガラスフィルムＧ１を成形する。不要部付きガラスフィルムＧ１は、製品となるガラスフィルムと、ガラスフィルムの幅方向の両側縁に設けられた不要部Ｇ１ａ，Ｇ１ｂとを有している。不要部Ｇ１ａ，Ｇ１ｂは、製品として利用されない不要ガラスフィルムである。本明細書では、製品となるガラスフィルムを単にガラスフィルムＧｐと言う場合がある。 <Forming equipment>
A molding device 12 of a glass film manufacturing device 11 molds a glass film G1 with unnecessary parts from molten glass. The glass film G1 with unnecessary parts includes a glass film to be a product and unnecessary parts G1a and G1b provided on both sides of the glass film in the width direction. The unnecessary parts G1a and G1b are unnecessary glass films that are not used as products. In this specification, the glass film used as a product may be simply referred to as glass film Gp.
　成形装置１２は、例えば、オーバーフローダウンドロー法により不要部付きガラスフィルムＧ１を成形する。成形装置１２は、溶融ガラスを流通する溝を有する成形部１２ａを備えている。成形部１２ａの溝に供給された溶融ガラスは、オーバーフローする。オーバーフローした溶融ガラスは、成形部１２ａの両面に沿って流下する。このように流下した溶融ガラスが成形部１２ａの下端で合流することで、フィルム状の溶融ガラスが得られる。フィルム状の溶融ガラスは、図面においてＺ軸に沿った鉛直方向に牽引される。フィルム状の溶融ガラスが牽引される方向は、鉛直方向に対して、例えば、３０°以内の範囲で傾斜していてもよい。 The molding device 12 molds the glass film G1 with unnecessary parts by, for example, an overflow down-draw method. The molding device 12 includes a molding section 12a having a groove through which molten glass flows. The molten glass supplied to the groove of the forming part 12a overflows. The overflowing molten glass flows down along both sides of the molding section 12a. The molten glass that has flown down in this way joins together at the lower end of the molding section 12a, so that a film-like molten glass is obtained. The film-like molten glass is pulled in the vertical direction along the Z axis in the drawing. The direction in which the film-like molten glass is pulled may be inclined, for example, within a range of 30° with respect to the vertical direction.
　成形装置１２は、図示を省略したエッジローラー、エッジローラーの下方に配置されたアニーラー等を備えている。フィルム状の溶融ガラスの両端は、エッジローラーで挟み込まれた状態で下方に牽引される。フィルム状の溶融ガラスは、アニーラーに導かれる。アニーラーでは、フィルム状の溶融ガラスの除歪処理が施されることで、不要部付きガラスフィルムＧ１が得られる。 The molding device 12 includes an edge roller (not shown), an annealer placed below the edge roller, and the like. Both ends of the film-like molten glass are pulled downward while being sandwiched between edge rollers. The film-like molten glass is guided to an annealer. In the annealer, a glass film G1 with unnecessary parts is obtained by subjecting the film-like molten glass to a strain removal treatment.
　成形装置１２は、オーバーフローダウンドロー法以外の方法により、ガラスフィルムを成形する装置に変更することもできる。成形装置１２は、例えば、スロット状の開口から溶融ガラスを流下させるスロットダウンドロー法を用いた成形装置であってもよい。また、成形装置１２は、例えば、シート状の母材ガラスを再成形するリドロー法を用いて、ガラスフィルムを成形する装置であってもよい。 The molding device 12 can also be changed to a device that molds a glass film by a method other than the overflow down-draw method. The molding device 12 may be, for example, a molding device using a slot down-draw method in which molten glass is caused to flow down from a slot-shaped opening. Further, the molding device 12 may be a device that molds a glass film using, for example, a redraw method that reshapes a sheet-like base material glass.
　＜処理装置＞
　図１～図３に示すように、ガラスフィルムの製造装置１１の処理装置１３は、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂの少なくとも一部を分離して除去する処理を行うことで、処理ガラスフィルムＧ２を得る装置である。処理装置１３は、例えば、レーザー照射装置１７と、位置決め装置１８とを備えている。レーザー照射装置１７は、一対のレーザー光照射部１７ａ，１７ｂを有している。一対のレーザー光照射部１７ａ，１７ｂは、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂにそれぞれ対応して配置される。 <Processing device>
As shown in FIGS. 1 to 3, the processing device 13 of the glass film manufacturing apparatus 11 performs a process of separating and removing at least a portion of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts. This is an apparatus for obtaining treated glass film G2. The processing device 13 includes, for example, a laser irradiation device 17 and a positioning device 18. The laser irradiation device 17 has a pair of laser light irradiation parts 17a and 17b. The pair of laser beam irradiation parts 17a and 17b are arranged corresponding to the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts, respectively.
　一対のレーザー光照射部１７ａ，１７ｂは、不要部付きガラスフィルムＧ１の両側部にレーザー光ＬＢを照射することで、不要部付きガラスフィルムＧ１を溶断する。このとき、不要部付きガラスフィルムＧ１は、レーザー光照射部１７ａ，１７ｂの下方位置で搬送されているため、レーザー光ＬＢは、不要部付きガラスフィルムＧ１の長さ方向に沿って照射される。これにより、不要部付きガラスフィルムＧ１を処理ガラスフィルムＧ２と不要ガラスフィルムＧａ，Ｇｂとに分離することができる。 The pair of laser light irradiation units 17a and 17b fuse and cut the glass film G1 with unnecessary parts by irradiating both sides of the glass film G1 with unnecessary parts with laser light LB. At this time, since the glass film G1 with unnecessary parts is being conveyed at a position below the laser beam irradiation parts 17a and 17b, the laser beam LB is irradiated along the length direction of the glass film G1 with unnecessary parts. Thereby, the glass film G1 with unnecessary parts can be separated into the treated glass film G2 and the unnecessary glass films Ga and Gb.
　処理ガラスフィルムＧ２は、製品となるガラスフィルムＧｐのみから構成されていてもよいし、不要部Ｇ１ａ，Ｇ１ｂの一部を含んでいてもよい。すなわち、処理装置１３は、不要部Ｇ１ａ，Ｇ１ｂの全体を取り除く装置であってもよいし、不要部Ｇ１ａ，Ｇ１ｂを部分的に取り除く装置であってもよい。本実施形態の処理装置１３で得られる処理ガラスフィルムＧ２は、ガラスフィルムＧｐと、不要部Ｇ１ａ，Ｇ１ｂの一部とを有している。 The treated glass film G2 may be composed only of the glass film Gp used as a product, or may include part of the unnecessary parts G1a and G1b. That is, the processing device 13 may be a device that removes the entire unnecessary portions G1a, G1b, or may be a device that partially removes the unnecessary portions G1a, G1b. The processed glass film G2 obtained by the processing apparatus 13 of this embodiment includes a glass film Gp and a portion of unnecessary parts G1a and G1b.
　処理装置１３は、レーザー光を用いて加熱したガラスに熱衝撃を加えることで割断するように構成することもできる。この場合、処理装置１３は、レーザー照射装置１７と、レーザーで加熱したガラスを冷却する冷却装置とを備えていてもよい。また、処理装置１３は、不要部付きガラスフィルムＧ１にスクライブ線を形成した後、スクライブ線に沿って不要部付きガラスフィルムＧ１を割断するように構成することもできる。 The processing device 13 can also be configured to cut the glass by applying a thermal shock to the heated glass using laser light. In this case, the processing device 13 may include a laser irradiation device 17 and a cooling device that cools the glass heated by the laser. Moreover, the processing device 13 can also be configured to form a scribe line on the glass film G1 with unnecessary parts and then cut the glass film G1 with unnecessary parts along the scribe lines.
　また、処理装置１３は、ワイヤソーや丸ノコ（サーキュラーソー）等を用いて不要部付きガラスフィルムＧ１を機械的に切断するように構成することもできる。
　図３に示すように、処理装置１３の位置決め装置１８は、ガラスフィルムＧｐが下方に撓んだ状態で不要部Ｇ１ａ，Ｇ１ｂの高さを位置決めする。位置決め装置１８は、吸引部１８ａ，１８ｂを有している。吸引部１８ａ，１８ｂは、レーザー光照射部１７ａ，１７ｂと向かい合うように配置されている。吸引部１８ａ，１８ｂは、図示を省略した吸引孔を有している。吸引孔は、吸引部１８ａ，１８ｂの上面に開口している。 Further, the processing device 13 can also be configured to mechanically cut the glass film G1 with unnecessary parts using a wire saw, a circular saw, or the like.
As shown in FIG. 3, the positioning device 18 of the processing device 13 positions the heights of the unnecessary parts G1a and G1b in a state where the glass film Gp is bent downward. The positioning device 18 has suction parts 18a and 18b. The suction parts 18a and 18b are arranged to face the laser light irradiation parts 17a and 17b. The suction parts 18a, 18b have suction holes (not shown). The suction holes are open on the upper surfaces of the suction parts 18a and 18b.
　吸引部１８ａ，１８ｂは、吸引孔から気体を吸引することで、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂにおいて、レーザー光ＬＢを照射する部分を吸引する。これにより、不要部Ｇ１ａ，Ｇ１ｂにおいてレーザー光ＬＢを照射する部分の浮き上がりを抑えることができる。このため、不要部Ｇ１ａ，Ｇ１ｂにおいてレーザー光ＬＢを照射する部分と、レーザー光照射部１７ａ，１７ｂとの距離を安定させることができる。不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂは、吸引部１８ａ，１８ｂに接触した状態であってもよいし、吸引部１８ａ，１８ｂと非接触の状態であってもよい。 The suction parts 18a and 18b suction the portions to be irradiated with the laser beam LB in the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by suctioning gas from the suction holes. This makes it possible to suppress lifting of the portion of the unnecessary portions G1a and G1b that is irradiated with the laser beam LB. Therefore, it is possible to stabilize the distance between the unnecessary portions G1a and G1b that are irradiated with the laser beam LB and the laser beam irradiation parts 17a and 17b. The unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts may be in contact with the suction parts 18a and 18b, or may be in a non-contact state with the suction parts 18a and 18b.
　位置決め装置１８は、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂに対応して設けられる第１浮上部１８ｃ，１８ｄと、第２浮上部１８ｅ，１８ｆとを備えている。
　第１浮上部１８ｃ，１８ｄは、不要部付きガラスフィルムＧ１の幅方向において、吸引部１８ａ，１８ｂの外側に配置されている。第２浮上部１８ｅ，１８ｆは、不要部付きガラスフィルムＧ１の幅方向において、吸引部１８ａ，１８ｂの内側に配置されている。 The positioning device 18 includes first floating parts 18c and 18d and second floating parts 18e and 18f, which are provided corresponding to the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts.
The first floating parts 18c and 18d are arranged outside the suction parts 18a and 18b in the width direction of the glass film G1 with unnecessary parts. The second floating parts 18e and 18f are arranged inside the suction parts 18a and 18b in the width direction of the glass film G1 with unnecessary parts.
　第１浮上部１８ｃ，１８ｄ及び第２浮上部１８ｅ，１８ｆは、図示を省略した噴射孔を有している。第１浮上部１８ｃ，１８ｄ及び第２浮上部１８ｅ，１８ｆは、噴射孔から上方に気体を噴射することで、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂを浮上させる。なお、図面では、気体の流れを破線矢印で示している。 The first floating parts 18c, 18d and the second floating parts 18e, 18f have injection holes (not shown). The first floating parts 18c, 18d and the second floating parts 18e, 18f float the unnecessary parts G1a, G1b of the glass film G1 with unnecessary parts by injecting gas upward from the injection holes. In addition, in the drawing, the flow of gas is shown by broken line arrows.
　上記のように吸引部１８ａ，１８ｂは、第１浮上部１８ｃ，１８ｄと第２浮上部１８ｅ，１８ｆとの間に配置されている。この場合、例えば、第１浮上部１８ｃ，１８ｄと第２浮上部１８ｅ，１８ｆとの間に位置する不要部Ｇ１ａ，Ｇ１ｂの下方へ膨出する変形を促進することができる。これにより、例えば、第１浮上部１８ｃ，１８ｄと第２浮上部１８ｅ，１８ｆとの間における不要部Ｇ１ａ，Ｇ１ｂの吸引が安定し易くなる。 As described above, the suction parts 18a and 18b are arranged between the first floating parts 18c and 18d and the second floating parts 18e and 18f. In this case, for example, it is possible to promote downward bulging deformation of the unnecessary parts G1a and G1b located between the first floating parts 18c and 18d and the second floating parts 18e and 18f. Thereby, for example, the suction of the unnecessary parts G1a and G1b between the first floating parts 18c and 18d and the second floating parts 18e and 18f becomes more stable.
　位置決め装置１８は、ガラスフィルムＧｐを浮上させるガラスフィルム浮上部１８ｇを備えている。ガラスフィルム浮上部１８ｇは、図示を省略した噴射孔を有している。ガラスフィルム浮上部１８ｇは、噴射孔からガラスフィルムＧｐに向けて気体を噴射する。ガラスフィルムＧｐは、下方からガラスフィルムＧｐに向かって噴射される気体により浮上される。 The positioning device 18 includes a glass film floating section 18g that floats the glass film Gp. The glass film floating portion 18g has injection holes (not shown). The glass film floating section 18g injects gas from the injection hole toward the glass film Gp. The glass film Gp is floated by gas injected toward the glass film Gp from below.
　＜収集装置＞
　図１及び図２に示すように、ガラスフィルムの製造装置１１の収集装置１４は、処理ガラスフィルムＧ２を収集する。収集装置１４の一例である巻取装置は、巻取ローラー１４ａと、巻取ローラー１４ａを回転駆動する図示しない駆動部とを備えている。収集装置１４は、処理ガラスフィルムＧ２を保護する保護用シートＰＳが巻回されてなる保護用シートロールＰＳＲを備えている。収集装置１４は、保護用シートロールＰＳＲから繰り出させた保護用シートＰＳを処理ガラスフィルムＧ２に重ね合わせるように供給する。収集装置１４の巻取ローラー１４ａは、処理ガラスフィルムＧ２と保護用シートＰＳと重ね合わせた状態で処理ガラスフィルムＧ２と保護用シートＰＳとをロール状に巻き取る。これにより、ガラスフィルムロールＧＲが得られる。 <Collection device>
As shown in FIGS. 1 and 2, the collection device 14 of the glass film manufacturing apparatus 11 collects the treated glass film G2. The winding device, which is an example of the collection device 14, includes a winding roller 14a and a drive unit (not shown) that rotationally drives the winding roller 14a. The collection device 14 includes a protective sheet roll PSR wound with a protective sheet PS that protects the treated glass film G2. The collecting device 14 supplies the protective sheet PS unreeled from the protective sheet roll PSR so as to overlap the treated glass film G2. The take-up roller 14a of the collection device 14 winds up the treated glass film G2 and the protective sheet PS into a roll in a state where the treated glass film G2 and the protective sheet PS are overlapped. Thereby, a glass film roll GR is obtained.
　保護用シートＰＳとしては、処理ガラスフィルムＧ２よりも軟質なシートが用いられる。すなわち、保護用シートＰＳは、ガラスフィルムＧｐと擦れたときにガラスフィルムＧｐに傷を発生させないシートである。保護用シートＰＳとしては、樹脂シートであることが好ましく、発泡樹脂シートであることがより好ましい。 As the protective sheet PS, a sheet that is softer than the treated glass film G2 is used. That is, the protective sheet PS is a sheet that does not cause scratches on the glass film Gp when it rubs against the glass film Gp. The protective sheet PS is preferably a resin sheet, more preferably a foamed resin sheet.
　収集装置１４は、処理ガラスフィルムＧ２を枚葉で収集する枚葉収集装置であってもよい。枚葉収集装置は、例えば、処理ガラスフィルムＧ２を所定の長さで切断する切断装置と、所定の長さの処理ガラスフィルムと所定の長さの保護用シートとを重ね合わせた状態で配置する重ね合わせ装置とを備える。なお、収集装置１４は、保護用シートＰＳを用いずに処理ガラスフィルムＧ２を収集するように構成してもよい。 The collecting device 14 may be a sheet collecting device that collects the treated glass film G2 sheet by sheet. For example, the sheet collecting device is arranged with a cutting device that cuts the treated glass film G2 to a predetermined length, and a predetermined length of the treated glass film and a predetermined length of a protective sheet overlapped with each other. and a superposition device. Note that the collecting device 14 may be configured to collect the treated glass film G2 without using the protective sheet PS.
　＜第１搬送装置＞
　ガラスフィルムの製造装置１１の第１搬送装置１５は、成形装置１２から処理装置１３まで不要部付きガラスフィルムＧ１を搬送する。第１搬送装置１５は、成形装置１２で成形された長尺状の不要部付きガラスフィルムＧ１を連続して処理装置１３に搬送できるように構成されている。 <First conveyance device>
The first transport device 15 of the glass film manufacturing apparatus 11 transports the glass film G1 with unnecessary parts from the molding device 12 to the processing device 13. The first transport device 15 is configured to be able to continuously transport the elongated glass film G1 with unnecessary parts formed by the molding device 12 to the processing device 13 .
　第１搬送装置１５は、方向変換装置１９と、ベルトコンベア装置２０と、摺動支持装置２１と、第１接触搬送装置２２とを上流側から順に備えている。
　（方向変換装置）
　第１搬送装置１５の方向変換装置１９は、成形装置１２から搬送された不要部付きガラスフィルムＧ１の進行方向を縦方向から横方向へ変換する。方向変換装置１９は、複数の方向変換用ローラー１９ａ，１９ｂを備えている。複数の方向変換用ローラー１９ａ，１９ｂは、不要部付きガラスフィルムＧ１の両不要部Ｇ１ａ，Ｇ１ｂのみを支持する。このような方向変換装置１９は、不要部付きガラスフィルムＧ１のガラスフィルムＧｐと非接触の状態とされる。 The first conveyance device 15 includes a direction change device 19, a belt conveyor device 20, a sliding support device 21, and a first contact conveyance device 22 in order from the upstream side.
(Direction changing device)
The direction changing device 19 of the first conveying device 15 changes the traveling direction of the glass film G1 with unnecessary parts conveyed from the forming device 12 from the vertical direction to the horizontal direction. The direction changing device 19 includes a plurality of direction changing rollers 19a and 19b. The plurality of direction conversion rollers 19a and 19b support only both unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts. Such a direction changing device 19 is kept in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts.
　複数の方向変換用ローラー１９ａ，１９ｂは、方向変換用ローラー１９ａ，１９ｂの軸線方向から見て湾曲状に配列されている。複数の方向変換用ローラー１９ａ，１９ｂは、不要部付きガラスフィルムＧ１を鉛直方向から横方向へ案内する。不要部付きガラスフィルムＧ１は、図面においてＸ軸に沿った水平方向に案内されている。不要部付きガラスフィルムＧ１は、水平方向に対して傾斜する方向に案内されていてもよい。不要部付きガラスフィルムＧ１は、例えば、水平方向に対して上下にそれぞれ４５°未満の範囲内となる方向に案内されることが好ましく、３０°未満の範囲内となる方向に案内されることがより好ましい。 The plurality of direction changing rollers 19a, 19b are arranged in a curved shape when viewed from the axial direction of the direction changing rollers 19a, 19b. The plurality of direction changing rollers 19a and 19b guide the glass film G1 with unnecessary parts from the vertical direction to the lateral direction. The glass film G1 with unnecessary parts is guided in the horizontal direction along the X axis in the drawing. The glass film G1 with unnecessary parts may be guided in a direction inclined with respect to the horizontal direction. For example, the glass film G1 with unnecessary parts is preferably guided in a direction within a range of less than 45° vertically with respect to the horizontal direction, and may not be guided in a direction within a range of less than 30°. More preferred.
　（ベルトコンベア装置）
　図２、図４、及び図５に示すように、第１搬送装置１５のベルトコンベア装置２０は、横方向に沿って不要部付きガラスフィルムＧ１を搬送する。ベルトコンベア装置２０は、ベルト本体２０ａと、ベルト本体２０ａに着脱可能な補助ベルト２０ｂ，２０ｃとを備えている。ベルトコンベア装置２０は、補助ベルト２０ｂ，２０ｃにより不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂのみを支持する。ベルト本体２０ａは、不要部付きガラスフィルムＧ１のガラスフィルムＧｐと非接触の状態とされる。ベルトコンベア装置２０は、ガラスフィルムＧｐが下方に撓んだ状態で不要部付きガラスフィルムＧ１を搬送する。 (belt conveyor device)
As shown in FIGS. 2, 4, and 5, the belt conveyor device 20 of the first conveyance device 15 conveys the glass film G1 with unnecessary parts along the lateral direction. The belt conveyor device 20 includes a belt main body 20a and auxiliary belts 20b and 20c that are detachable from the belt main body 20a. The belt conveyor device 20 supports only the unnecessary parts G1a, G1b of the glass film G1 with unnecessary parts by the auxiliary belts 20b, 20c. The belt main body 20a is in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts. The belt conveyor device 20 conveys the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward.
　補助ベルト２０ｂ，２０ｃは、図示を省略した連結部を有し、帯状のベルトが連結部で連結されることで無端状に形成されている。補助ベルト２０ｂ，２０ｃは、ベルト本体２０ａの幅方向において離間して配置されている。補助ベルト２０ｂ，２０ｃは、帯状のベルトを連結部で連結することで、ベルト本体２０ａに装着することができる。補助ベルト２０ｂ，２０ｃは、帯状のベルトの連結部による連結を解除することで、ベルト本体２０ａから脱離させることができる。 The auxiliary belts 20b and 20c have a connecting portion (not shown), and are formed into an endless shape by connecting belt-shaped belts at the connecting portion. The auxiliary belts 20b and 20c are spaced apart from each other in the width direction of the belt main body 20a. The auxiliary belts 20b and 20c can be attached to the belt main body 20a by connecting band-shaped belts at a connecting portion. The auxiliary belts 20b and 20c can be detached from the belt main body 20a by releasing the connection at the connecting portion of the band-shaped belt.
　ベルトコンベア装置２０のベルト本体２０ａは、図示を省略した噴射孔を有している。ベルト本体２０ａは、噴射孔からガラスフィルムＧｐに向けて気体を噴射する。ガラスフィルムＧｐは、下方からガラスフィルムＧｐに向かって噴射される気体により浮上される。 The belt main body 20a of the belt conveyor device 20 has injection holes (not shown). The belt main body 20a injects gas toward the glass film Gp from the injection holes. The glass film Gp is floated by gas injected toward the glass film Gp from below.
　（摺動支持装置）
　図２、図６、及び図７に示すように、第１搬送装置１５の摺動支持装置２１は、横方向に沿って搬送される不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂを摺動可能に支持する。摺動支持装置２１は、基台部２１ａと、基台部２１ａに設けられる摺動支持部２１ｂ，２１ｃとを備えている。 (Sliding support device)
As shown in FIGS. 2, 6, and 7, the sliding support device 21 of the first conveyance device 15 slides the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts being conveyed along the lateral direction. support possible. The sliding support device 21 includes a base portion 21a and sliding support portions 21b and 21c provided on the base portion 21a.
　摺動支持装置２１は、摺動支持部２１ｂ，２１ｃにより不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂのみを支持する。摺動支持装置２１は、ガラスフィルムＧｐが下方に撓んだ状態で不要部付きガラスフィルムＧ１を支持する。 The sliding support device 21 supports only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by the sliding support parts 21b and 21c. The sliding support device 21 supports the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward.
　摺動支持部２１ｂ，２１ｃは、基台部２１ａの幅方向において離間して配置されている。摺動支持部２１ｂ，２１ｃの材料としては、例えば、樹脂材料、金属材料、ガラス、セラミックス等が挙げられる。摺動支持部２１ｂ，２１ｃの材料は、樹脂材料であることが好ましい。樹脂材料としては、例えば、フッ素樹脂、ポリオレフィン等が挙げられる。樹脂材料には、炭素系材料等の帯電防止剤を含有させることもできる。 The sliding support parts 21b and 21c are arranged apart from each other in the width direction of the base part 21a. Examples of the material for the sliding support portions 21b and 21c include resin materials, metal materials, glass, and ceramics. The material of the sliding support portions 21b and 21c is preferably a resin material. Examples of the resin material include fluororesin, polyolefin, and the like. The resin material can also contain an antistatic agent such as a carbon-based material.
　摺動支持装置２１の基台部２１ａは、不要部付きガラスフィルムＧ１のガラスフィルムＧｐと非接触の状態とされる。基台部２１ａは、図示を省略した噴射孔を有している。基台部２１ａは、噴射孔からガラスフィルムＧｐに向けて気体を噴射する。ガラスフィルムＧｐは、下方からガラスフィルムＧｐに向かって噴射される気体により浮上される。 The base portion 21a of the sliding support device 21 is kept in a non-contact state with the glass film Gp of the glass film G1 with unnecessary parts. The base portion 21a has an injection hole (not shown). The base part 21a injects gas toward the glass film Gp from the injection hole. The glass film Gp is floated by gas injected toward the glass film Gp from below.
　（第１接触搬送装置）
　図１、図２、図８、及び図９に示すように、第１搬送装置１５の第１接触搬送装置２２は、ガラスフィルムＧｐよりも軟質の第１搬送用シートＣＳ１を不要部付きガラスフィルムＧ１に接触させて不要部付きガラスフィルムＧ１を搬送する。第１接触搬送装置２２は、第１搬送部２２ａと、第１搬送部２２ａ上に第１搬送用シートＣＳ１を連続的に供給する第１搬送用シート供給部２２ｂとを備えている。 (First contact conveyance device)
As shown in FIGS. 1, 2, 8, and 9, the first contact conveying device 22 of the first conveying device 15 transfers the first conveying sheet CS1, which is softer than the glass film Gp, to the glass film with unnecessary parts. The glass film G1 with unnecessary parts is conveyed by contacting the glass film G1. The first contact conveyance device 22 includes a first conveyance section 22a and a first conveyance sheet supply section 22b that continuously supplies the first conveyance sheet CS1 onto the first conveyance section 22a.
　第１搬送用シート供給部２２ｂは、第１搬送用シートＣＳ１が巻回されてなる搬送用シートロールＣＳＲを備えている。第１搬送用シート供給部２２ｂは、搬送用シートロールＣＳＲから繰り出された第１搬送用シートＣＳ１を第１搬送部２２ａと不要部付きガラスフィルムＧ１との間に供給する。第１搬送部２２ａ上に供給された第１搬送用シートＣＳ１は、処理装置１３に向けて移動される。このように移動される搬送用シート上に不要部付きガラスフィルムＧ１を載置することによって不要部付きガラスフィルムＧ１を搬送することができる。第１搬送用シートＣＳ１は、第１搬送部２２ａ上を通過した後、下方に退避されることで、不要部付きガラスフィルムＧ１から離間する。 The first conveyance sheet supply section 22b includes a conveyance sheet roll CSR around which the first conveyance sheet CS1 is wound. The first conveying sheet supplying section 22b supplies the first conveying sheet CS1 fed out from the conveying sheet roll CSR between the first conveying section 22a and the glass film G1 with unnecessary parts. The first conveying sheet CS1 supplied onto the first conveying section 22a is moved toward the processing device 13. By placing the glass film G1 with unnecessary parts on the transport sheet that is moved in this way, the glass film G1 with unnecessary parts can be transported. After passing over the first conveyance section 22a, the first conveyance sheet CS1 is retracted downward, thereby separating from the glass film G1 with unnecessary parts.
　第１搬送部２２ａは、第１搬送用シートＣＳ１が摺動される上面を有する搬送台であってもよいし、第１搬送用シートＣＳ１が載置されるベルトを有するベルトコンベア装置であってもよい。第１搬送用シートＣＳ１としては、ガラスフィルムＧｐと擦れたときにガラスフィルムＧｐに傷を発生させないシートであれば特に限定されない。第１搬送用シートＣＳ１としては、樹脂シートであることが好ましく、発泡樹脂シートであることがより好ましい。 The first conveyance unit 22a may be a conveyance table having an upper surface on which the first conveyance sheet CS1 is slid, or a belt conveyor device having a belt on which the first conveyance sheet CS1 is placed. Good too. The first conveyance sheet CS1 is not particularly limited as long as it does not cause scratches on the glass film Gp when it rubs against the glass film Gp. The first conveying sheet CS1 is preferably a resin sheet, more preferably a foamed resin sheet.
　＜第２搬送装置＞
　図１及び図２に示すように、ガラスフィルムの製造装置１１の第２搬送装置１６は、第２接触搬送装置２３を備えている。第２接触搬送装置２３は、ガラスフィルムＧｐよりも軟質の第２搬送用シートＣＳ２を処理ガラスフィルムＧ２に接触させて処理ガラスフィルムＧ２を搬送する。第２接触搬送装置２３は、第２搬送部２３ａと、第２搬送部２３ａ上に第２搬送用シートＣＳ２を連続的に供給する第２搬送用シート供給部２３ｂとを備えている。 <Second transport device>
As shown in FIGS. 1 and 2, the second conveyance device 16 of the glass film manufacturing apparatus 11 includes a second contact conveyance device 23. The second contact conveyance device 23 conveys the treated glass film G2 by bringing the second conveyance sheet CS2, which is softer than the glass film Gp, into contact with the treated glass film G2. The second contact conveyance device 23 includes a second conveyance section 23a and a second conveyance sheet supply section 23b that continuously supplies the second conveyance sheet CS2 onto the second conveyance section 23a.
　第２搬送用シート供給部２３ｂは、第１接触搬送装置２２で使用した第１搬送用シートＣＳ１を、第２搬送用シートＣＳ２として処理装置１３の下方から第２搬送部２３ａと処理ガラスフィルムＧ２との間に供給する。すなわち、第２搬送用シートＣＳ２は、第１搬送用シートＣＳ１を再利用したものである。第２搬送部２３ａ上に供給された第２搬送用シートＣＳ２は、収集装置１４に向けて移動される。このように移動される第２搬送用シートＣＳ２上に処理ガラスフィルムＧ２を載置することによって処理ガラスフィルムＧ２を搬送することができる。第２搬送用シートＣＳ２は、第２搬送部２３ａを通過した後、図示を省略した巻取機で巻き取られる。 The second conveying sheet supply section 23b supplies the first conveying sheet CS1 used in the first contact conveying device 22 as a second conveying sheet CS2 to the second conveying sheet 23a and the processed glass film G2 from below the processing device 13. Supply between. That is, the second conveyance sheet CS2 is a reused sheet of the first conveyance sheet CS1. The second conveyance sheet CS2 supplied onto the second conveyance section 23a is moved toward the collection device 14. By placing the treated glass film G2 on the second conveyance sheet CS2 that is moved in this way, the treated glass film G2 can be conveyed. After passing through the second conveyance section 23a, the second conveyance sheet CS2 is wound up by a winder (not shown).
　＜ガラスフィルムの製造方法＞
　次に、ガラスフィルムＧｐの製造方法について説明する。
　ガラスフィルムＧｐの製造方法は、成形工程と、処理工程と、第１搬送工程と、第２搬送工程とを備えている。図１及び図２に示すように、成形工程では、不要部付きガラスフィルムＧ１を、成形装置１２を用いて成形する。処理工程では、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂの少なくとも一部を処理装置１３で分離して除去する処理を行うことで、処理ガラスフィルムＧ２を得る。 <Glass film manufacturing method>
Next, a method for manufacturing the glass film Gp will be explained.
The method for manufacturing the glass film Gp includes a molding process, a treatment process, a first conveyance process, and a second conveyance process. As shown in FIGS. 1 and 2, in the molding process, the glass film G1 with unnecessary parts is molded using a molding device 12. In the treatment step, a treated glass film G2 is obtained by performing a process of separating and removing at least part of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts using the processing apparatus 13.
　第１搬送工程では、成形装置１２から処理装置１３まで不要部付きガラスフィルムＧ１を搬送する。第２搬送工程では、処理ガラスフィルムＧ２を処理装置１３から処理ガラスフィルムＧ２を収集する収集装置１４まで搬送する。第１搬送工程及び第２搬送工程では、ガラスフィルムＧｐよりも軟質の搬送用シート以外の部材がガラスフィルムＧｐに接触しない状態で、不要部付きガラスフィルムＧ１又は処理ガラスフィルムＧ２を搬送する。収集装置１４では、例えば、処理ガラスフィルムＧ２を巻き取る収集工程が行われることで、ガラスフィルムロールＧＲが得られる。 In the first conveyance step, the glass film G1 with unnecessary parts is conveyed from the molding device 12 to the processing device 13. In the second conveyance step, the treated glass film G2 is conveyed from the treatment device 13 to the collection device 14 that collects the treated glass film G2. In the first conveyance process and the second conveyance process, the glass film G1 with unnecessary parts or the treated glass film G2 is conveyed in a state where no member other than the conveyance sheet that is softer than the glass film Gp contacts the glass film Gp. In the collecting device 14, for example, a collecting step of winding up the treated glass film G2 is performed, thereby obtaining a glass film roll GR.
　特に主面の平滑性が求められる用途では、処理ガラスフィルムＧ２のうち、ガラスフィルムＧｐのみを使用することが推奨される。なお、求められる性能に応じて、処理ガラスフィルムＧ２のうち、残されている不要部を含む部分を製品に使用してもよい。 In particular, in applications where smoothness of the main surface is required, it is recommended to use only the glass film Gp among the treated glass films G2. Note that, depending on the required performance, a portion of the treated glass film G2 including the remaining unnecessary portion may be used in the product.
　＜作用及び効果＞
　次に、本実施形態の作用及び効果について説明する。
　（１）ガラスフィルムＧｐの製造方法は、ガラスフィルムＧｐを製造する方法である。ガラスフィルムＧｐの製造方法は、第１搬送工程及び第２搬送工程では、ガラスフィルムＧｐよりも軟質の搬送用シート以外の部材がガラスフィルムＧｐに接触しない状態で、不要部付きガラスフィルムＧ１又は処理ガラスフィルムＧ２を搬送する。例えば、第１搬送工程で用いる方向変換装置１９、ベルトコンベア装置２０、及び摺動支持装置２１では、ガラスフィルムＧｐと非接触の状態である。また、例えば、第１搬送工程で用いる第１接触搬送装置２２及び第２搬送工程で用いる第２接触搬送装置２３では、ガラスフィルムＧｐよりも軟質の第１搬送用シートＣＳ１又は第２搬送用シートＣＳ２をガラスフィルムＧｐに接触させている。この方法によれば、第１搬送工程及び第２搬送工程において、ガラスフィルムＧｐの主面に他の部材が接触することを要因とした傷の発生を防止することができる。従って、ガラスフィルムＧｐの主面の傷を削減することができる。 <Action and effect>
Next, the functions and effects of this embodiment will be explained.
(1) The method for manufacturing glass film Gp is a method for manufacturing glass film Gp. The method for manufacturing the glass film Gp is such that in the first conveyance step and the second conveyance step, the glass film G1 with unnecessary portions or the processed The glass film G2 is transported. For example, the direction changing device 19, belt conveyor device 20, and sliding support device 21 used in the first conveyance step are in a non-contact state with the glass film Gp. For example, in the first contact conveyance device 22 used in the first conveyance process and the second contact conveyance device 23 used in the second conveyance process, the first conveyance sheet CS1 or the second conveyance sheet that is softer than the glass film Gp is used. CS2 is brought into contact with the glass film Gp. According to this method, it is possible to prevent scratches caused by other members coming into contact with the main surface of the glass film Gp in the first conveyance step and the second conveyance step. Therefore, scratches on the main surface of the glass film Gp can be reduced.
　（２）ガラスフィルムＧｐの製造方法で用いる処理装置１３は、ガラスフィルムＧｐが下方に撓んだ状態で不要部Ｇ１ａ，Ｇ１ｂの高さを位置決めする位置決め装置１８を備えている。この場合、例えば、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂの位置を安定させた状態で処理工程を行うことができる。従って、例えば、処理ガラスフィルムＧ２の幅方向の端面の品位を高めることが可能となる。 (2) The processing device 13 used in the method for manufacturing the glass film Gp includes a positioning device 18 that positions the heights of the unnecessary portions G1a and G1b while the glass film Gp is bent downward. In this case, for example, the processing step can be performed in a state where the positions of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are stabilized. Therefore, for example, it is possible to improve the quality of the end faces in the width direction of the treated glass film G2.
　（３）ガラスフィルムＧｐの製造方法において、第１搬送工程は、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂを支持した状態であり、ガラスフィルムＧｐが下方に撓んだ状態で不要部付きガラスフィルムＧ１を搬送する工程を含む。この場合、不要部付きガラスフィルムＧ１の姿勢を安定させて搬送することができる。 (3) In the method for manufacturing the glass film Gp, the first conveyance step is a state in which the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are supported, and the glass film Gp is bent downward and the unnecessary parts are attached. This includes a step of transporting the glass film G1. In this case, the posture of the glass film G1 with unnecessary parts can be stabilized and transported.
　（４）ガラスフィルムＧｐの製造方法において、不要部付きガラスフィルムＧ１のガラスフィルムＧｐは、下方からガラスフィルムＧｐに向かって噴射される気体により浮上されている。この場合、上述した搬送用シート以外の部材がガラスフィルムＧｐに接触しない状態を維持しつつ、ガラスフィルムＧｐの姿勢を安定させて不要部付きガラスフィルムＧ１を搬送することができる。 (4) In the method for manufacturing the glass film Gp, the glass film Gp of the glass film G1 with unnecessary parts is floated by gas injected from below toward the glass film Gp. In this case, the glass film G1 with unnecessary parts can be transported while maintaining the state in which members other than the above-mentioned transporting sheet do not contact the glass film Gp, while stabilizing the posture of the glass film Gp.
　（５）ガラスフィルムＧｐの製造方法において、第１搬送工程は、成形装置１２から搬送された不要部付きガラスフィルムＧ１の進行方向を縦方向から横方向へ変換する方向変換工程を含む。方向変換工程において、不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂのみを縦方向から横方向へ案内する複数の方向変換用ローラー１９ａで支持している。この場合、例えば、成形装置１２から縦方向に搬送される不要部付きガラスフィルムＧ１を横方向に容易に方向変換することができる。 (5) In the method for manufacturing the glass film Gp, the first conveying step includes a direction changing step of changing the traveling direction of the glass film G1 with unnecessary parts conveyed from the forming device 12 from the vertical direction to the horizontal direction. In the direction changing step, only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts are supported by a plurality of direction changing rollers 19a that guide them from the vertical direction to the horizontal direction. In this case, for example, the direction of the glass film G1 with unnecessary parts transported in the vertical direction from the molding device 12 can be easily changed to the horizontal direction.
　（６）ガラスフィルムＧｐの製造方法において、第１搬送工程では、横方向に沿って不要部付きガラスフィルムＧ１を搬送するベルトコンベア装置２０を用いる搬送を含む。ベルトコンベア装置２０は、ベルト本体２０ａと、ベルト本体２０ａに着脱可能な補助ベルト２０ｂ，２０ｃとを備えている。ベルトコンベア装置２０は、補助ベルト２０ｂ，２０ｃにより不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂのみを支持している。この場合、例えば、平坦な搬送面を有するベルト本体２０ａに補助ベルト２０ｂ，２０ｃを装着することで、ガラスフィルムＧｐとベルト本体２０ａとを非接触とした状態で搬送することができる。また、例えば、補助ベルト２０ｂ，２０ｃの厚さ寸法を変更することで、不要部付きガラスフィルムＧ１の高さを調整することが可能となる。 (6) In the method for manufacturing the glass film Gp, the first conveyance step includes conveyance using the belt conveyor device 20 that conveys the glass film G1 with unnecessary parts along the lateral direction. The belt conveyor device 20 includes a belt main body 20a and auxiliary belts 20b and 20c that are detachable from the belt main body 20a. The belt conveyor device 20 supports only the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts by auxiliary belts 20b and 20c. In this case, for example, by attaching the auxiliary belts 20b and 20c to the belt main body 20a having a flat transport surface, the glass film Gp and the belt main body 20a can be transported in a non-contact state. Further, for example, by changing the thickness dimensions of the auxiliary belts 20b and 20c, it is possible to adjust the height of the glass film G1 with unnecessary parts.
　（７）ガラスフィルムＧｐの製造方法において、第１搬送工程では、横方向に沿って搬送される不要部付きガラスフィルムＧ１の不要部Ｇ１ａ，Ｇ１ｂを摺動可能に支持する摺動支持装置２１を用いている。この場合、搬送される不要部付きガラスフィルムＧ１を、ガラスフィルムＧｐを非接触とした状態で容易に支持することができる。 (7) In the method for manufacturing the glass film Gp, in the first conveyance step, a sliding support device 21 that slidably supports the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts being conveyed along the lateral direction is used. I am using it. In this case, the glass film G1 with unnecessary parts being conveyed can be easily supported without contacting the glass film Gp.
　（８）アリカリアルミノシリケートガラスから構成されるガラスフィルムは、特に搬送工程において表面に傷欠陥が生じ易い。このようなアリカリアルミノシリケートガラスから構成されるガラスフィルムの製造に対して、上記ガラスフィルムＧｐの製造方法を適用することは、例えば、歩留まりを高めるという観点で特に有利である。 (8) Glass films made of alkali aluminosilicate glass are prone to scratches and defects on the surface, especially during the transportation process. Applying the above method for producing glass film Gp to the production of a glass film composed of such alkali aluminosilicate glass is particularly advantageous, for example, from the viewpoint of increasing the yield.
　＜変更例＞
　上記実施形態は、以下のように変更して実施することができる。上記実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。 <Example of change>
The above embodiment can be modified and implemented as follows. The above embodiment and the following modification examples can be implemented in combination with each other within a technically consistent range.
　・上記第２搬送工程は、処理ガラスフィルムＧ２の幅方向の両端部を支持した状態であり、ガラスフィルムＧｐが下方に撓んだ状態で処理ガラスフィルムＧ２を搬送する工程を含んでもよい。このとき、処理ガラスフィルムＧ２の両端部に残されている不要部Ｇ１ａ，Ｇ１ｂを支持する。この場合、処理ガラスフィルムＧ２の姿勢を安定させて搬送することができる。 - The second conveyance step may include a step of conveying the treated glass film G2 in a state in which both ends of the treated glass film G2 in the width direction are supported and the glass film Gp is bent downward. At this time, unnecessary parts G1a and G1b left at both ends of the treated glass film G2 are supported. In this case, the treated glass film G2 can be transported with its posture stabilized.
　・上記第２搬送工程は、上記ベルトコンベア装置２０と同様の構成を有するベルトコンベア装置を用いる搬送を含んでもよい。すなわち、第２搬送工程では、処理ガラスフィルムＧ２の両端部に残されている不要部Ｇ１ａ，Ｇ１ｂを、ベルトコンベア装置の補助ベルト２０ｂ，２０ｃにより支持して処理ガラスフィルムＧ２を搬送することもできる。この場合、第２搬送工程において、上記（６）欄に記載の効果と同様の効果を得ることができる。 - The second conveyance step may include conveyance using a belt conveyor device having the same configuration as the belt conveyor device 20 described above. That is, in the second conveyance step, the treated glass film G2 can also be conveyed by supporting the unnecessary portions G1a and G1b left at both ends of the treated glass film G2 by the auxiliary belts 20b and 20c of the belt conveyor device. . In this case, the same effect as described in column (6) above can be obtained in the second conveyance step.
　・上記第２搬送工程において、上記摺動支持装置２１と同様の構成を有する摺動支持装置を用いてもよい。すなわち、第２搬送工程において、処理ガラスフィルムＧ２の幅方向の両端部を摺動支持装置の摺動支持部により支持してもよい。このとき、処理ガラスフィルムＧ２の両端部に残されている不要部Ｇ１ａ，Ｇ１ｂを摺動支持部により支持する。この場合、第２搬送工程において、上記（７）欄に記載の効果と同様の効果が得られる。 - In the second conveyance step, a sliding support device having the same configuration as the sliding support device 21 may be used. That is, in the second conveyance step, both ends of the treated glass film G2 in the width direction may be supported by sliding support parts of a sliding support device. At this time, the unnecessary portions G1a and G1b remaining at both ends of the treated glass film G2 are supported by the sliding support portions. In this case, the same effect as described in column (7) above can be obtained in the second conveyance step.
　・上記第２搬送工程において、ガラスフィルムＧｐは、下方からガラスフィルムＧｐに向かって噴射される気体により浮上されていてもよい。この場合、上述した搬送用シート以外の部材がガラスフィルムＧｐに接触しない状態を維持しつつ、ガラスフィルムＧｐの姿勢を安定させて処理ガラスフィルムＧ２を搬送することができる。 - In the second conveyance step, the glass film Gp may be floated by gas injected from below toward the glass film Gp. In this case, the treated glass film G2 can be transported while maintaining the state in which members other than the above-mentioned transporting sheet do not contact the glass film Gp, while stabilizing the attitude of the glass film Gp.
　・上記第２搬送工程は、第２接触搬送装置２３を用いずに行うこともできる。
　・上記第１搬送工程は、摺動支持装置２１を用いずに行うこともできる。
　・上記第１搬送工程は、第１接触搬送装置２２を用いずに行うこともできる。 - The above-mentioned second conveyance step can also be performed without using the second contact conveyance device 23.
- The above-mentioned first conveyance step can also be performed without using the sliding support device 21.
- The above-mentioned first conveyance step can also be performed without using the first contact conveyance device 22.
　・第１接触搬送装置２２の第１搬送用シートＣＳ１と、第２接触搬送装置２３の第２搬送用シートＣＳ２は、互いに独立した搬送用シートロールから供給することもできる。
　・例えば、成形装置１２が不要部付きガラスフィルムＧ１を横方向に搬出する成形装置の場合、上記第１搬送工程における方向変換工程を省略することもできる。不要部付きガラスフィルムＧ１を横方向に搬出する成形装置としては、例えば、フロート法を用いた成形装置が挙げられる。 - The first conveying sheet CS1 of the first contact conveying device 22 and the second conveying sheet CS2 of the second contact conveying device 23 can also be supplied from mutually independent conveying sheet rolls.
- For example, in the case where the molding device 12 is a molding device that transports the glass film G1 with unnecessary parts in the horizontal direction, the direction changing step in the first transport step can be omitted. An example of a molding device that transports the glass film G1 with unnecessary parts in the lateral direction is a molding device using a float method.
　・上記処理装置１３では、下方からガラスフィルムＧｐに向かって気体を噴射しているが、この気体の噴射を省略することもできる。
　・上記第１搬送工程では、下方からガラスフィルムＧｐに向かって気体を噴射して搬送する工程を含んでいるが、気体の噴射を省略することもできる。すなわち、例えば、ベルトコンベア装置２０では、ガラスフィルムＧｐに向かって噴射される気体によりガラスフィルムＧｐを浮上させているが、この浮上を省略することもできる。摺動支持装置２１についても、ガラスフィルムＧｐの浮上を省略することもできる。 - In the processing device 13, gas is injected from below toward the glass film Gp, but the injection of this gas can also be omitted.
- Although the first conveyance step includes a step of injecting gas toward the glass film Gp from below and conveying it, the injection of gas can also be omitted. That is, for example, in the belt conveyor device 20, the glass film Gp is levitated by gas injected toward the glass film Gp, but this levitation can also be omitted. Regarding the sliding support device 21, floating of the glass film Gp can also be omitted.
　・上記ベルトコンベア装置２０の補助ベルト２０ｂ，２０ｃをベルト本体２０ａとは独立して駆動されるように構成したベルトコンベア装置に変更してもよい。この場合、ベルト本体２０ａを省略し、例えば、ガラスフィルムＧｐに向けて気体を噴出し、ガラスフィルムＧｐを浮上させる浮上装置を配置してもよい。 - The auxiliary belts 20b and 20c of the belt conveyor device 20 may be changed to a belt conveyor device configured to be driven independently of the belt main body 20a. In this case, the belt main body 20a may be omitted and, for example, a flotation device may be provided to eject gas toward the glass film Gp and levitate the glass film Gp.
　・上記第１搬送工程は、ガラスフィルムＧｐが下方に撓んだ状態で不要部付きガラスフィルムＧ１を搬送する工程を含むが、ガラスフィルムＧｐが下方に撓ませずに搬送する工程に変更してもよい。 - The above-mentioned first conveyance process includes a process of conveying the glass film G1 with unnecessary parts in a state where the glass film Gp is bent downward, but it is changed to a process in which the glass film Gp is conveyed without being bent downward. Good too.
　・上記処理装置１３は、ガラスフィルムＧｐが下方に撓んだ状態で不要部Ｇ１ａ，Ｇ１ｂの高さを位置決めする位置決め装置１８を備えているが、この位置決め装置１８を省略することもできる。 - Although the processing device 13 is equipped with a positioning device 18 that positions the height of the unnecessary portions G1a and G1b in a state where the glass film Gp is bent downward, this positioning device 18 can also be omitted.
　・上記ガラスフィルムＧｐの製造方法の搬送工程は、不要部付きガラスフィルムＧ１から不要部Ｇ１ａ，Ｇ１ｂの少なくとも一部を分離して除去する処理を行った処理ガラスフィルムＧ２を収集装置１４まで搬送している。この搬送工程は、不要部付きガラスフィルムＧ１を収集装置１４まで搬送する搬送工程に変更することもできる。この場合、搬送工程の途中で、例えば、ガラスフィルムＧｐの表面処理等、上記の処理以外の処理を行ってもよい。 - The transporting step of the method for manufacturing the glass film Gp includes transporting the treated glass film G2, which has been subjected to a process of separating and removing at least part of the unnecessary parts G1a and G1b from the glass film G1 with unnecessary parts, to the collection device 14. ing. This conveyance process can also be changed to a conveyance process in which the glass film G1 with unnecessary parts is conveyed to the collection device 14. In this case, treatments other than the above-mentioned treatments, such as surface treatment of the glass film Gp, may be performed during the conveyance process.
　・ガラスフィルムＧｐの製造方法における処理工程は、不要部付きガラスフィルムＧ１の両不要部Ｇ１ａ，Ｇ１ｂのうち、一方の不要部を処理した後、他方の不要部を処理する工程に変更することもできる。また、ガラスフィルムＧｐの製造方法における処理工程は、不要部付きガラスフィルムＧ１の両不要部Ｇ１ａ，Ｇ１ｂのうち、一方の不要部のみを処理する工程に変更することもできる。すなわち、処理ガラスフィルムＧ２の両側部のうち、一側部には、不要部の全体が残されていてもよい。 - The processing step in the method for manufacturing the glass film Gp may be changed to a step in which one of the unnecessary parts G1a and G1b of the glass film G1 with unnecessary parts is processed, and then the other unnecessary part is processed. can. Furthermore, the treatment step in the method for manufacturing the glass film Gp can be changed to a step of treating only one of the unnecessary portions G1a and G1b of the glass film G1 with unnecessary portions. That is, the entire unnecessary portion may be left on one side of both sides of the treated glass film G2.
　１１…ガラスフィルムの製造装置
　１２…成形装置
　１３…処理装置
　１４…収集装置
　１５…第１搬送装置
　１６…第２搬送装置
　１８…位置決め装置
　１９ａ，１９ｂ…方向変換用ローラー
　２０…ベルトコンベア装置
　２０ａ…ベルト本体
　２０ｂ，２０ｃ…補助ベルト
　２１…摺動支持装置
　ＣＳ１…第１搬送用シート
　ＣＳ２…第２搬送用シート
　Ｇ１…不要部付きガラスフィルム
　Ｇ１ａ，Ｇ１ｂ…不要部
　Ｇ２…処理ガラスフィルム
　Ｇｐ…ガラスフィルム 11... Glass film manufacturing device 12... Molding device 13... Processing device 14... Collection device 15... First conveying device 16... Second conveying device 18... Positioning device 19a, 19b... Direction changing roller 20... Belt conveyor device 20a... Belt body 20b, 20c...Auxiliary belt 21...Sliding support device CS1...First conveyance sheet CS2...Second conveyance sheet G1...Glass film with unnecessary parts G1a, G1b...Unnecessary part G2...Processed glass film Gp...Glass film

Claims (14)

  1. 　製品となるガラスフィルムと前記ガラスフィルムの幅方向の両側縁に設けられた不要部とを有する不要部付きガラスフィルムを、成形装置を用いて成形する成形工程と、
    　前記不要部付きガラスフィルムの前記不要部の少なくとも一部を処理装置で分離して除去する処理を行うことで、処理ガラスフィルムを得る処理工程と、
    　前記成形装置から前記処理装置まで前記不要部付きガラスフィルムを搬送する第１搬送工程と、
    　前記処理ガラスフィルムを前記処理装置から前記処理ガラスフィルムを収集する収集装置まで搬送する第２搬送工程と、を備え、
    　前記第１搬送工程及び前記第２搬送工程では、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する、ガラスフィルムの製造方法。     a molding step of molding a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a molding device;
    A processing step of obtaining a treated glass film by separating and removing at least a portion of the unnecessary portion of the glass film with unnecessary portions using a processing device;
    a first conveyance step of conveying the glass film with unnecessary parts from the molding device to the processing device;
    a second conveyance step of conveying the treated glass film from the treatment device to a collection device that collects the treated glass film,
    In the first conveyance step and the second conveyance step, the glass film with unnecessary parts or the treated glass film is processed in a state in which no member other than the conveyance sheet that is softer than the glass film contacts the glass film that becomes the product. A method for manufacturing glass film that transports.
  2. 　前記処理装置は、前記ガラスフィルムが下方に撓んだ状態で前記不要部の高さを位置決めする位置決め装置を備える、請求項１に記載のガラスフィルムの製造方法。 The method for manufacturing a glass film according to claim 1, wherein the processing device includes a positioning device that positions the height of the unnecessary portion while the glass film is bent downward.
  3. 　前記第１搬送工程は、前記不要部付きガラスフィルムの前記不要部を支持した状態であり、前記ガラスフィルムが下方に撓んだ状態で前記不要部付きガラスフィルムを搬送する工程を含む、請求項１に記載のガラスフィルムの製造方法。 The first conveying step includes a step of conveying the glass film with unnecessary parts in a state where the unnecessary parts of the glass film with unnecessary parts are supported and the glass film is bent downward. 1. The method for producing a glass film according to 1.
  4. 　前記第２搬送工程は、前記処理ガラスフィルムの幅方向の両端部を支持した状態であり、前記ガラスフィルムが下方に撓んだ状態で前記処理ガラスフィルムを搬送する工程を含む、請求項１に記載のガラスフィルムの製造方法。 According to claim 1, the second conveyance step includes a step of conveying the treated glass film in a state in which both ends of the treated glass film in the width direction are supported and the glass film is bent downward. The method for manufacturing the glass film described.
  5. 　前記ガラスフィルムは、下方から前記ガラスフィルムに向かって噴射される気体により浮上されている、請求項１から請求項４のいずれか一項に記載のガラスフィルムの製造方法。 The method for manufacturing a glass film according to any one of claims 1 to 4, wherein the glass film is floated by gas injected toward the glass film from below.
  6. 　前記第１搬送工程は、前記成形装置から搬送された前記不要部付きガラスフィルムの進行方向を縦方向から横方向へ変換する方向変換工程を含み、
    　前記方向変換工程において、前記不要部付きガラスフィルムの前記不要部のみを前記縦方向から前記横方向へ案内する複数の方向変換用ローラーで支持する、請求項１に記載のガラスフィルムの製造方法。     The first conveying step includes a direction changing step of changing the traveling direction of the glass film with unnecessary parts conveyed from the forming device from a vertical direction to a horizontal direction,
    The method for manufacturing a glass film according to claim 1, wherein in the direction changing step, only the unnecessary portion of the glass film with unnecessary portions is supported by a plurality of direction changing rollers that guide only the unnecessary portion from the vertical direction to the horizontal direction.
  7. 　前記第１搬送工程では、横方向に沿って前記不要部付きガラスフィルムを搬送するベルトコンベア装置を用いる搬送を含み、
    　前記ベルトコンベア装置は、ベルト本体と、前記ベルト本体に着脱可能な補助ベルトと、を備え、
    　前記補助ベルトにより前記不要部付きガラスフィルムの前記不要部のみを支持する、請求項１に記載のガラスフィルムの製造方法。     The first conveyance step includes conveyance using a belt conveyor device that conveys the glass film with unnecessary parts along the lateral direction,
    The belt conveyor device includes a belt main body and an auxiliary belt that is detachable from the belt main body,
    The method for manufacturing a glass film according to claim 1, wherein only the unnecessary portion of the glass film with unnecessary portions is supported by the auxiliary belt.
  8. 　前記第２搬送工程では、横方向に沿って前記処理ガラスフィルムを搬送するベルトコンベア装置を用いる搬送を含み、
    　前記ベルトコンベア装置は、ベルト本体と、前記ベルト本体に着脱可能な補助ベルトと、を備え、
    　前記補助ベルトにより前記処理ガラスフィルムの両端部を支持する、請求項１に記載のガラスフィルムの製造方法。     The second conveyance step includes conveyance using a belt conveyor device that conveys the treated glass film along the lateral direction,
    The belt conveyor device includes a belt main body and an auxiliary belt that is detachable from the belt main body,
    The method for manufacturing a glass film according to claim 1, wherein both ends of the treated glass film are supported by the auxiliary belt.
  9. 　前記第１搬送工程では、横方向に沿って搬送される前記不要部付きガラスフィルムの前記不要部を摺動可能に支持する摺動支持装置を用いる、請求項１に記載のガラスフィルムの製造方法。 The method for manufacturing a glass film according to claim 1, wherein in the first conveyance step, a sliding support device that slidably supports the unnecessary portion of the glass film with unnecessary portions that is conveyed along the lateral direction is used. .
  10. 　前記第２搬送工程では、横方向に沿って搬送される前記処理ガラスフィルムの幅方向の両端部を摺動可能に支持する摺動支持装置を用いる、請求項１に記載のガラスフィルムの製造方法。 The method for producing a glass film according to claim 1, wherein in the second conveyance step, a sliding support device that slidably supports both ends in the width direction of the treated glass film conveyed along the lateral direction is used. .
  11. 　前記収集装置は、前記ガラスフィルムを巻き取る巻取装置、又は前記ガラスフィルムを枚葉で収集する枚葉収集装置である、請求項１に記載のガラスフィルムの製造方法。 The method for manufacturing a glass film according to claim 1, wherein the collecting device is a winding device that winds up the glass film, or a sheet collecting device that collects the glass film sheet by sheet.
  12. 　前記ガラスフィルムは、厚さ寸法が０．３ｍｍ以下のアリカリアルミノシリケートガラスから構成される、請求項１に記載のガラスフィルムの製造方法。 The method for manufacturing a glass film according to claim 1, wherein the glass film is made of alkali aluminosilicate glass having a thickness of 0.3 mm or less.
  13. 　ガラスフィルムの製造装置であって、
    　幅方向の両側縁に沿って不要部が設けられた不要部付きガラスフィルムを成形する成形装置と、
    　前記不要部付きガラスフィルムの前記不要部の少なくとも一部を分離して除去する処理を行うことで、処理ガラスフィルムを得る処理装置と、
    　前記処理ガラスフィルムを収集する収集装置と、
    　前記成形装置から前記処理装置まで前記不要部付きガラスフィルムを搬送する第１搬送装置と、
    　前記処理ガラスフィルムを前記処理装置から前記収集装置まで搬送する第２搬送装置と、を備え、
    　前記第１搬送装置及び前記第２搬送装置は、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する、ガラスフィルムの製造装置。     A glass film manufacturing device,
    A forming device for forming a glass film with unnecessary parts provided along both sides in the width direction;
    A processing device that obtains a treated glass film by performing a process of separating and removing at least a portion of the unnecessary portion of the glass film with unnecessary portions;
    a collection device for collecting the treated glass film;
    a first conveyance device that conveys the glass film with unnecessary parts from the molding device to the processing device;
    a second transport device that transports the treated glass film from the processing device to the collection device,
    The first conveyance device and the second conveyance device transport the glass film with unnecessary parts or the treated glass film in a state in which no member other than the conveyance sheet that is softer than the glass film comes into contact with the glass film that becomes the product. Glass film manufacturing equipment that transports glass film.
  14. 　製品となるガラスフィルムと前記ガラスフィルムの幅方向の両側縁に設けられた不要部とを有する不要部付きガラスフィルムを、成形装置を用いて成形する成形工程と、
    　前記不要部付きガラスフィルム、又は、前記不要部付きガラスフィルムから前記不要部の少なくとも一部を分離して除去する処理を行った処理ガラスフィルムを、収集装置まで搬送する搬送工程と、を備え、
    　前記搬送工程では、前記ガラスフィルムよりも軟質の搬送用シート以外の部材が製品となる前記ガラスフィルムに接触しない状態で、前記不要部付きガラスフィルム又は前記処理ガラスフィルムを搬送する、ガラスフィルムの製造方法。     a molding step of molding a glass film with unnecessary parts, which has a glass film to be a product and unnecessary parts provided on both sides of the glass film in the width direction, using a molding device;
    A transporting step of transporting the glass film with unnecessary parts, or a treated glass film that has been subjected to a process of separating and removing at least a part of the unnecessary parts from the glass film with unnecessary parts, to a collection device,
    In the conveyance step, the glass film with unnecessary parts or the treated glass film is conveyed in a state in which no member other than the conveyance sheet that is softer than the glass film comes into contact with the glass film that becomes the product. Method.
PCT/JP2023/017983 2022-05-26 2023-05-12 Production method for glass film, and production device for glass film WO2023228788A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015044710A (en) * 2013-08-28 2015-03-12 日本電気硝子株式会社 Glass film ribbon manufacturing apparatus, glass film ribbon manufacturing method, and glass roll
JP2016503379A (en) * 2012-11-09 2016-02-04 コーニング インコーポレイテッド How to process glass ribbon
WO2018070209A1 (en) * 2016-10-11 2018-04-19 日本電気硝子株式会社 Method for producing glass film
WO2021187144A1 (en) * 2020-03-17 2021-09-23 日本電気硝子株式会社 Method for manufacturing strip-shaped glass film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016503379A (en) * 2012-11-09 2016-02-04 コーニング インコーポレイテッド How to process glass ribbon
JP2015044710A (en) * 2013-08-28 2015-03-12 日本電気硝子株式会社 Glass film ribbon manufacturing apparatus, glass film ribbon manufacturing method, and glass roll
WO2018070209A1 (en) * 2016-10-11 2018-04-19 日本電気硝子株式会社 Method for producing glass film
WO2021187144A1 (en) * 2020-03-17 2021-09-23 日本電気硝子株式会社 Method for manufacturing strip-shaped glass film

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