WO2023199760A1 - Device and method for manufacturing glass article - Google Patents

Device and method for manufacturing glass article Download PDF

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Publication number
WO2023199760A1
WO2023199760A1 PCT/JP2023/013554 JP2023013554W WO2023199760A1 WO 2023199760 A1 WO2023199760 A1 WO 2023199760A1 JP 2023013554 W JP2023013554 W JP 2023013554W WO 2023199760 A1 WO2023199760 A1 WO 2023199760A1
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WO
WIPO (PCT)
Prior art keywords
glass product
glass
manufacturing
contact
prevention member
Prior art date
Application number
PCT/JP2023/013554
Other languages
French (fr)
Japanese (ja)
Inventor
好晴 山本
崇 藤田
薫 鑑継
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN202380021197.4A priority Critical patent/CN118742521A/en
Publication of WO2023199760A1 publication Critical patent/WO2023199760A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • B08B1/34—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis parallel to the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
    • B08B11/04—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
    • 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

Definitions

  • the present invention relates to an apparatus and method for manufacturing glass products.
  • a processing process in which end face processing is performed on a glass plate cut from a glass original plate, a cleaning process in which the glass plate is cleaned after processing, and a process in which the surface of the glass plate is cleaned during cleaning.
  • a drying process is performed to remove the cleaning liquid adhering to the surface by blowing gas from an air knife (for example, see Patent Document 1).
  • the cleaning step and the drying step are performed while the glass plate is transported along a predetermined transport path.
  • the conveying device used to convey the glass plate is constituted by, for example, a roller conveyor (see paragraph 0019 of the same document).
  • the present invention has been made in view of the above circumstances, and is designed to prevent glass products from coming into contact with a manufacturing-related processing section that performs manufacturing-related processing such as air knives when glass products such as glass plates are transported abnormally.
  • the technical challenge is to prevent this.
  • the present invention is intended to solve the above-mentioned problems, and provides a glass product manufacturing apparatus that includes a transport device that transports glass products along a predetermined transport direction, and an air knife that blows gas onto the glass products. and a contact prevention member that prevents the glass product from coming into contact with the air knife when the glass product is conveyed abnormally, and the contact prevention member is located on the upstream side of the air knife in the conveyance direction. and at least one of the downstream side.
  • the contact prevention member can prevent the glass product from coming into contact with the air knife.
  • the contact prevention member may also function as a marker that attaches a mark indicating abnormal transportation to the surface of the glass product when the glass product is transported abnormally.
  • the contact prevention member may include an elastic body capable of contacting the glass product. According to this configuration, when the glass product comes into contact with the elastic body due to a transportation abnormality, the elastic body is pressed by the glass product and elastically deforms. Thereby, it is possible to reduce the impact that occurs on the glass product when the contact prevention member comes into contact with the glass product. Moreover, this elastic deformation makes it possible to ensure a large contact area of the elastic body with the glass product. Thereby, when the contact prevention member is used as a marker, it is possible to make the mark made on the glass product by the elastic body as large as possible.
  • the distance between the contact prevention member and the glass product is longer than the distance between the air knife and the glass product. It is preferable that the contact prevention member contacts the glass product so that the glass product does not come into contact with the air knife when the glass product is conveyed abnormally.
  • the glass product manufacturing apparatus may include an inspection device that detects the mark. According to this configuration, abnormality in the conveyance of glass products by the conveyance device can be detected efficiently and reliably.
  • the contact prevention member may include a roller. According to this configuration, when a transport abnormality occurs in the transport device and the glass product comes into contact with the contact prevention member, it is possible to prevent excessive frictional force from acting on the glass product.
  • the contact prevention member may be arranged upstream and downstream of the air knife in the conveyance direction. According to this configuration, the contact prevention members provided on the upstream and downstream sides of the air knife can reliably prevent the glass product from coming into contact with the air knife when a conveyance abnormality of the glass product occurs.
  • the contact prevention member may be placed above the glass product transported by the transport device.
  • the present invention is intended to solve the above-mentioned problems, and is a manufacturing apparatus for glass products, which is equipped with a conveyance device that conveys glass products along a predetermined conveyance direction, and in which the glass products are normally conveyed by the conveyance device.
  • a manufacturing-related processing section disposed apart from the surface of the glass product; a contact prevention member that comes into contact with the surface of the product, and the contact prevention member is disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction.
  • the contact prevention member when the glass product is transported abnormally, the contact prevention member can prevent the glass product from coming into contact with the manufacturing-related processing section.
  • the present invention is intended to solve the above-mentioned problems, and includes a cleaning step in which the glass product is washed by a cleaning device while the glass product is transported along a predetermined transport direction; a drying step of blowing gas onto the glass product using an air knife while conveying the glass product along the conveyance direction, the method includes: The glass product is prevented from coming into contact with the air knife by bringing a contact prevention member disposed on at least one of the upstream side and the downstream side of the air knife in the conveyance direction into contact with the glass product.
  • the contact prevention member when the glass product is transported abnormally, the contact prevention member can be brought into contact with the glass product to prevent the glass product from coming into contact with the air knife.
  • the present invention is intended to solve the above-mentioned problems, and includes a manufacturing-related processing step in which a manufacturing-related processing section performs manufacturing-related processing on the glass product while transporting the glass product along a predetermined transport direction.
  • a method for manufacturing a glass product comprising: a contact prevention member disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction when the glass product is conveyed abnormally. By contacting the glass product, the glass product is prevented from coming into contact with the manufacturing-related processing section.
  • the present invention is intended to solve the above-mentioned problems, and provides a glass product manufacturing apparatus that includes a transport device that transports glass products along a predetermined transport direction, and an air knife that blows gas onto the glass products. and a contact prevention member disposed upstream of the air knife in the transport direction, and when the glass product is normally transported, the separation distance between the contact prevention member and the glass product is equal to the distance between the contact prevention member and the glass product.
  • the distance between the air knife and the glass product is set to be smaller than the distance between the air knife and the glass product.
  • the contact prevention member comes into contact with the glass product, thereby preventing the glass product from coming into contact with the air knife.
  • the present invention when a glass product is transported abnormally, it is possible to prevent the glass product from coming into contact with a manufacturing-related processing unit that performs manufacturing-related processing such as an air knife.
  • FIG. 1 is a side view showing a glass product manufacturing apparatus.
  • FIG. 2 is a side view showing a drying section in the glass product manufacturing apparatus. 2 is a view taken along the line III-III in FIG. 1.
  • FIG. It is a flowchart which shows the manufacturing method of a glass product. It is a side view which shows a marking process. It is a figure showing a marking process. It is a perspective view showing an inspection process.
  • FIG. 1 to 7 show an embodiment of a glass product manufacturing apparatus and manufacturing method according to the present invention.
  • a rectangular glass plate will be exemplified below as a glass product, the shape of the glass product is not limited to this embodiment.
  • the glass product manufacturing apparatus 1 includes a cleaning section 2, a drying section 3, an inspection section 4, and transport devices 5a to 5c that transport the glass plate G along a predetermined transport direction X. , is provided.
  • the terms “upstream side” and “downstream side” may be used based on the transport direction X of the glass plate G.
  • the cleaning section 2 includes a first cleaning device 6 and a second cleaning device 7 provided downstream of the first cleaning device 6.
  • the first cleaning device 6 includes a device 8 for supplying cleaning liquid to the glass plate G (hereinafter referred to as "first supply device"), and a cleaning tool 9 disposed downstream of the first supply device 8.
  • first supply device for supplying cleaning liquid to the glass plate G
  • cleaning tool 9 disposed downstream of the first supply device 8.
  • the first supply device 8 includes a pair of upper and lower supply devices so as to supply the cleaning liquid 10 to the entire surface of the glass plate G (upper surface Ga and lower surface Gb).
  • pure water can be used as the cleaning liquid 10 supplied by the first supply device 8, and detergents (acidic detergents, alkaline detergents), surfactants, alkaline ionized water, etc. may be added as necessary. good.
  • the cleaning tool 9 is composed of a pair of upper and lower cleaning rollers that scrub the surfaces Ga and Gb of the glass plate G to remove dirt such as foreign matter adhering to the surfaces Ga and Gb.
  • the cleaning roller may have a contact portion with the glass plate G made of an elastic material such as a sponge, or may be made of a brush. In the former case, the cleaning roller is a sponge roller, and in the latter case, the cleaning roller is a brush roller.
  • a cleaning disk may be used instead of the cleaning roller, or the cleaning roller and the cleaning disk may be combined.
  • the second cleaning device 7 includes a pair of upper and lower supply devices (hereinafter referred to as "second supply device") 12 that supply a rinsing liquid 11 to the glass plate G that has passed through the first cleaning device 6.
  • second supply device 12 As the rinsing liquid 11 supplied to the glass plate G by the second supply device 12, it is possible to use a known type of rinsing liquid such as pure water.
  • the drying section 3 includes a pair of upper and lower first air knives 14 that spray gas 13 onto the glass plate G, and a pair of upper and lower second air knives 15 provided downstream of the first air knife 14. , a first contact prevention member 16 and a second contact prevention member 17 that prevent the glass plate G from contacting the air knives 14 and 15.
  • the first air knife 14 is made of metal, for example, stainless steel.
  • the first air knife 14 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G.
  • the first air knife 14 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the second cleaning device 7.
  • the first air knife 14 includes a spout 14a that spews out the gas 13.
  • the spout 14a of the upper first air knife 14 is the lowest position (lower end) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the upper side is a portion located closest to the upper surface Ga of the glass plate G.
  • the distance DA1 between the jet port 14a of the upper first air knife 14 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .
  • the jet nozzle 14a of the lower first air knife 14 is the uppermost portion (upper end portion) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the lower side is a portion located closest to the lower surface Gb of the glass plate G.
  • the distance DA2 between the jet nozzle 14a of the lower first air knife 14 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.
  • the second air knife 15 is made of metal, for example, stainless steel.
  • the second air knife 15 may have the same shape as the first air knife 14.
  • the second air knife 15 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G.
  • the second air knife 15 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the first air knife 14.
  • the second air knife 15 includes a spout 15a that spouts out the gas 13.
  • the spout 15a of the upper second air knife 15 is the lowest position (lower end) of the second air knife 15. That is, the spout 15a of the upper second air knife 15 is the part located closest to the upper surface Ga of the glass plate G.
  • the distance DA3 between the spout 15a of the upper second air knife 15 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .
  • the jet nozzle 15a of the second air knife 15 on the lower side is the uppermost portion (upper end portion) of the second air knife 15. That is, the jet nozzle 15a of the second air knife 15 on the lower side is a portion located closest to the lower surface Gb of the glass plate G.
  • the distance DA4 between the jet nozzle 15a of the lower second air knife 15 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.
  • Each of the contact prevention members 16 and 17 prevents the glass plate G from contacting the air knives 14 and 15 by contacting the glass plate G when the glass plate G is conveyed abnormally.
  • Each of the contact prevention members 16 and 17 also functions as a marker that comes into contact with the surfaces Ga and Gb of the glass plate G that has been conveyed abnormally and attaches a mark indicating that the conveyance is abnormal.
  • each contact prevention member 16, 17 is separated from the glass plate G, and each contact prevention member 16, 17 does not come into contact with the glass plate G.
  • the first contact prevention member 16 includes a pair of upper and lower upstream contact prevention members 16a1 and 16a2 located upstream of the first air knife 14, and a pair of upper and lower downstream contact prevention members 16b1 located downstream of the first air knife 14. , 16b2.
  • the second contact prevention member 17 includes a pair of upper and lower upstream contact prevention members 17a1 and 17a2 located upstream of the second air knife 15, and a pair of upper and lower downstream contact prevention members 17b1 located downstream of the second air knife 15. , 17b2.
  • the upstream contact prevention members 16a1, 16a2, 17a1, 17a2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16a1, 17a1 located above the glass plate G being conveyed, and the glass plate and lower contact prevention members 16a2 and 17a2 located below G.
  • the separation distance DB1 between the upper contact prevention members 16a1, 17a1 and the upper surface Ga of the glass plate G is determined by the air knife located above the glass plate G.
  • the distances DA1 and DA3 between the glass plates 14 and 15 are set smaller than the distances DA1 and DA3.
  • the distance DB2 between the lower contact prevention members 16a2 and 17a2 and the lower surface Gb of the glass plate G is the same as the distance between the air knives 14 and 15 located below the glass plate G.
  • the distances DA2 and DA4 between the lower surfaces Gb of the glass plates G are set smaller.
  • the downstream contact prevention members 16b1, 16b2, 17b1, 17b2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16b1, 17b1 located above the glass plate G being conveyed, and the glass plate lower contact prevention members 16b2 and 17b2 located below G.
  • the distances DB3 and DB4 between the surfaces Ga and Gb of the glass plate G that are normally transported and the downstream contact prevention members 16b1, 16b2, 17b1, and 17b2 are the surface Ga of the glass plate G that is normally transported.
  • Gb and each of the air knives 14, 15 are set smaller than the respective separation distances DA1 to DA4.
  • the distances DB1 to DB4 between the surfaces Ga and Gb of the normally transported glass plate G and each of the contact prevention members 16 and 17 are 0 to 3.0 mm. Furthermore, the distance between the first contact prevention member 16 and the jet nozzle 14a of the first air knife 14 in the transport direction X is preferably 0.1 to 20 mm. Further, the distance between the second contact prevention member 17 and the jet port 15a of the second air knife 15 in the transport direction X is preferably 0.1 to 20 mm.
  • the upstream contact prevention members 16a1 and 16a2 of the first contact prevention member 16 include a plurality of contact prevention members arranged at predetermined intervals along the width direction GX of the glass plate G.
  • the width direction of the glass plate G is It may be configured to include a plurality of contact prevention members along GX.
  • Each contact prevention member 16, 17 is constituted by, for example, a roller. Specifically, each contact prevention member 16, 17 includes a roller body 18 and a shaft portion 19 that rotatably supports the roller body 18.
  • the roller body 18 is made of, for example, resin and has a cylindrical shape.
  • the shaft portion 19 extends along the horizontal direction orthogonal to the transport direction X of the glass plate G.
  • the roller body 18 includes a contact portion 20 that can come into contact with the glass plate G on its outer peripheral surface.
  • the contact portion 20 is provided over the entire outer peripheral surface of the roller body 18.
  • the contact portion 20 is made of an elastic body. Examples of materials used for the elastic body include rubber.
  • the elastic body has an annular configuration and is detachably attached to the outer peripheral surface of the roller body 18. Note that the elastic body is preferably colored in a dark color. Thereby, as will be described later, it is possible to mark the glass plate G with a mark that makes it easy to detect conveyance abnormalities.
  • the inspection unit 4 includes an inspection device 21 that inspects the glass plate G.
  • the inspection device 21 includes an imaging device 22 that images surfaces Ga and Gb of the glass plate G, and an image processing device 23.
  • the imaging device 22 images the surfaces Ga and Gb of the glass plate G being conveyed in a predetermined posture, and acquires the image data.
  • the imaging device 22 can transmit the acquired image data to the image processing device 23.
  • the image processing device 23 is configured by a computer, and inspects the presence or absence of defects in the glass plate G, the presence or absence of marks by contact prevention members (markers) 16 and 17, etc. based on the image data transmitted from the imaging device 22. I can do it.
  • the transport devices 5a to 5c include a first transport device 5a that transports the glass plate G in the cleaning section 2, and a second transport device 5b that transports the glass plate G in the drying section 3. , and a third conveyance device 5c that conveys the glass plate G in the inspection section 4.
  • Each of the conveyance devices 5a to 5c is constituted by, for example, a roller conveyor.
  • Each of the conveyance devices 5a to 5c has a plurality of conveyance rollers 24 arranged at intervals along the conveyance direction X of the glass plate G.
  • the conveyance devices 5a to 5c can adjust the vertical and horizontal positions of the plurality of conveyance rollers 24 so as to convey the glass plate G at a predetermined height and in a predetermined posture.
  • the conveyance roller 24 is inclined at a predetermined angle ⁇ with respect to the horizontal direction perpendicular to the conveyance direction X of the glass plate G.
  • the inclination angle ⁇ of the conveyance roller 24 is preferably 1 to 10 degrees. With this configuration, the glass plate G normally transported by the transport rollers 24 is transported in an inclined posture.
  • first end Gc of the glass plate G in the width direction GX is different from the other end (hereinafter referred to as "second end") of the glass plate G in the width direction GX. ) located below Gd.
  • the glass plate G may be conveyed with the first end Gc supported by a roller (not shown).
  • the cleaning liquid 10 or the rinsing liquid 11 supplied to the glass plate G is transferred from the second end Gd side to the first end Gc side.
  • the liquid flows toward the first end Gc and falls from the first end Gc.
  • this method includes a processing step S1, a cleaning step S2, a drying step S3, and an inspection step S4.
  • the processing step S1 is a manufacturing-related processing step, and includes, for example, a step of processing the end face of the glass plate G with a grindstone, a step of polishing the surface of the glass plate G, and a step of roughening the surface of the glass plate G.
  • a cutting step for cutting out a glass plate G of a desired size from a glass original plate may be provided as a pre-process to the processing step S1.
  • a glass plate cut out from a glass ribbon formed by, for example, an overflow method or a float method can be used as the glass original plate.
  • Examples of the glass plate G that has undergone the processing step S1 include display glass plates having a length and a width of 100 to 5000 mm, and a thickness of 50 to 1500 ⁇ m. Such a glass plate G may be warped in the thickness direction depending on molding conditions and the like.
  • the cleaning step S2 is a manufacturing-related treatment step that cleans the glass plate G after the processing step S1.
  • the cleaning liquid 10 is applied to the surfaces Ga and Gb of the glass plate G by the first supply device 8 of the first cleaning device 6. supply Thereafter, the surfaces Ga and Gb of the glass plate G are scrubbed and cleaned using the cleaning tool 9 of the first cleaning device 6.
  • the glass plate G transported by the first transport device 5a reaches the second cleaning device 7.
  • the second supply device 12 supplies the rinsing liquid 11 to the surfaces Ga and Gb of the glass plate G that has been transported, thereby rinsing the glass plate G.
  • the first conveyance device 5a conveys the glass plate G to the drying section 3.
  • the drying step S3 is a manufacturing-related processing step that dries the glass plate G after the cleaning step S2.
  • gas 13 is blown onto the glass plate G from the first air knife 14 while the glass plate G is being transported by the second transporting device 5b (first drying step).
  • first drying step the rinsing liquid 11 remaining on the surfaces Ga and Gb of the glass plate G is removed.
  • the gas 13 is blown from the second air knife 15 onto the glass plate G that has passed through the first air knife 14 and reached the second air knife 15 (second drying step). Thereby, the surfaces Ga and Gb of the glass plate G can be dried.
  • the present method may include a marking step of attaching a mark to the glass plate G when the glass plate G is conveyed abnormally.
  • this marking step will be explained using an example in which a mark is attached to the glass plate G by the upper contact prevention member 16a1, which is the upstream contact prevention member of the first contact prevention member 16.
  • the conveyance roller 24 may be placed at an inappropriate position deviated from a predetermined position.
  • the conveyance roller 24 in an appropriate position is shown by a solid line
  • the conveyance roller 24 in an inappropriate position is shown by a chain double-dashed line.
  • the conveyance roller 24 in an inappropriate position is more likely to prevent the upper contact of the first contact prevention member 16 than the conveyance roller 24 (solid line) in an appropriate position. It is located near the member 16a1. In this case, when the glass plate G passes the conveyance roller 24 which is in an inappropriate position, the glass plate G is lifted by the conveyance roller 24, thereby causing vibration in the glass plate G.
  • the upper surface Ga of the glass plate G is brought into contact with the upper surface as shown by the two-dot chain line in FIGS. 5 and 6. It contacts the contact portion 20 of the prevention member 16a1.
  • the roller main body 18 of the upper contact prevention member 16a1 rotates, and the elastic body serving as the contact portion 20 is elastically deformed by this contact.
  • the elastically deformed contact portion 20 rubs against the top surface Ga of the glass plate G, a part of the rubber constituting the elastic body is transferred to the top surface Ga of the glass plate G.
  • a mark contact trace
  • the upper contact prevention member 16a1 of the first contact prevention member 16 contacts the upper surface Ga of the glass plate G, thereby preventing the glass plate G from contacting the upper first air knife 14. be done.
  • the glass plate G that has been subjected to the drying step S3 (marking step) in the drying section 3 is transported to the inspection section 4 by the second transport device 5b.
  • the glass plate G that has undergone the drying step S3 is inspected for the presence or absence of defects and the presence or absence of transport abnormalities.
  • the inspection device 21 determines the quality of the glass plate G as a product based on the inspection results.
  • the inspection device 21 detects this mark M and indicates that an abnormality has occurred in the conveyance of the glass plate G. Detect.
  • the second conveyance device 5b is inspected.
  • the position of the conveyance roller 24 constituting the second conveyance device 5b is inspected. If the conveyance roller 24 is defective, maintenance and position adjustment are performed to eliminate the defect. Note that the glass plate G on which the mark M was detected in the inspection step S4 may be subjected to the cleaning step S2 and the drying step S3 again. Thereby, the mark M can be removed from the glass plate G.
  • the marking process contact prevention A mark M can be attached to the glass plate G by the members 16, 17.
  • the inspection step S4 inspection device 21
  • the contact prevention members 16 and 17 were configured by rotatable rollers, but the present invention is not limited to this configuration.
  • the contact prevention members 16 and 17 may be configured to contact the glass plate G without rotating.
  • the contact portions 20 of the contact prevention members 16 and 17 are not limited to an elastic body, and may be made of a material having a lower hardness than the glass plate G, for example, a synthetic resin such as polyamide resin, phenol resin, or urethane resin. That is, for example, the roller bodies 18 of the contact prevention members 16 and 17 may be made of synthetic resin, and the outer peripheral surface of the roller bodies 18 may be used as the contact portion 20 to the glass plate G.
  • the contact prevention members 16 and 17 are positioned above and below the glass plate G transported by the transport devices 5a to 5c, but the present invention is not limited to this configuration.
  • the contact prevention member may be placed only above the glass plate G being transported.
  • the contact prevention members 16 and 17 were arranged on the conveyance path of the glass plate G by the second conveyance device 5b, but the present invention is not limited to this configuration.
  • the contact prevention member may be arranged on the conveyance path of the glass plate G by the first conveyance device 5a or the third conveyance device 5c.
  • a contact prevention member may be placed on the conveyance path when the glass plate G is conveyed to the first cleaning device 6 after the processing step S1.
  • the manufacturing apparatus 1 may have contact prevention members 16 and 17 disposed only on the upstream side or only on the downstream side of the air knives 14 and 15. From the viewpoint of reliably preventing glass products from coming into contact with the air knives 14 and 15, it is preferable to arrange contact prevention members 16 and 17 only on the upstream side of the air knives 14 and 15, and contact prevention members 16 and 17 are preferably provided on both the upstream and downstream sides. It is more preferable to arrange the members 16 and 17.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Cleaning In General (AREA)

Abstract

A glass article manufacturing device 1 is provided with a transport device 5b that transports a glass article G along a predetermined transport direction X, and an air knife 14 that blows gas 13 onto the glass product G. The manufacturing device 1 is provided with a contact prevention member 16 that prevents the glass product G from contacting the air knife 14 when the glass product G is transported in an abnormal manner.

Description

ガラス製品の製造装置及び製造方法Glass product manufacturing equipment and manufacturing method
　本発明は、ガラス製品を製造する装置及び方法に関する。 The present invention relates to an apparatus and method for manufacturing glass products.
　例えばディスプレイ用のガラス基板をはじめとするガラス板を製造する方法では、ガラス原板から切り出されたガラス板に端面加工を施す加工工程、加工後にガラス板を洗浄する洗浄工程、洗浄時にガラス板の表面に付着した洗浄液をエアナイフからの気体の吹き付けにより除去する乾燥工程等が行われる（例えば特許文献１参照）。 For example, in the method of manufacturing glass plates such as glass substrates for displays, there is a processing process in which end face processing is performed on a glass plate cut from a glass original plate, a cleaning process in which the glass plate is cleaned after processing, and a process in which the surface of the glass plate is cleaned during cleaning. A drying process is performed to remove the cleaning liquid adhering to the surface by blowing gas from an air knife (for example, see Patent Document 1).
　この製造方法において、洗浄工程及び乾燥工程は、ガラス板を所定の搬送経路に沿って搬送しながら行われる。ガラス板の搬送に使用される搬送装置は、例えばローラコンベアにより構成される（同文献の段落００１９参照）。 In this manufacturing method, the cleaning step and the drying step are performed while the glass plate is transported along a predetermined transport path. The conveying device used to convey the glass plate is constituted by, for example, a roller conveyor (see paragraph 0019 of the same document).
特開２０１９－８９０４４号公報JP 2019-89044 Publication
　上記のような従来のガラス板の製造方法では、洗浄工程においてガラス板に付着した洗浄液を確実に除去するために、乾燥工程において、搬送装置によって搬送されているガラス板に、エアナイフを可能な限り近づけて配置することが望ましい。 In the conventional glass plate manufacturing method as described above, in order to reliably remove the cleaning liquid adhering to the glass plate during the cleaning process, an air knife is applied to the glass plate being transported by the transport device as much as possible during the drying process. It is desirable to place them close together.
　しかしながら、搬送装置の状態によっては、搬送中のガラス板に振動が生じ、ガラス板がエアナイフに接触するおそれがあった。ガラス板がエアナイフに接触してしまうと、エアナイフを構成する金属がガラス板に付着することでガラス板が汚染され、或いはガラス板が損傷するおそれがあった。 However, depending on the state of the conveyance device, vibration may occur in the glass plate being conveyed, and there is a risk that the glass plate may come into contact with the air knife. If the glass plate comes into contact with the air knife, there is a risk that the metal constituting the air knife will adhere to the glass plate, thereby contaminating the glass plate or damaging the glass plate.
　本発明は上記の事情に鑑みてなされたものであり、ガラス板等のガラス製品が異常な搬送をされた場合に、エアナイフ等の製造関連処理を行う製造関連処理部へのガラス製品の接触を防止することを技術的課題とする。 The present invention has been made in view of the above circumstances, and is designed to prevent glass products from coming into contact with a manufacturing-related processing section that performs manufacturing-related processing such as air knives when glass products such as glass plates are transported abnormally. The technical challenge is to prevent this.
　本発明は上記の課題を解決するためのものであり、ガラス製品を所定の搬送方向に沿って搬送する搬送装置と、前記ガラス製品に気体を吹き付けるエアナイフと、を備える、ガラス製品の製造装置であって、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記エアナイフに接触することを防止する接触防止部材を備え、前記接触防止部材は、前記搬送方向において前記エアナイフの上流側及び下流側の少なくとも一方に配置されることを特徴とする。 The present invention is intended to solve the above-mentioned problems, and provides a glass product manufacturing apparatus that includes a transport device that transports glass products along a predetermined transport direction, and an air knife that blows gas onto the glass products. and a contact prevention member that prevents the glass product from coming into contact with the air knife when the glass product is conveyed abnormally, and the contact prevention member is located on the upstream side of the air knife in the conveyance direction. and at least one of the downstream side.
　かかる構成によれば、ガラス製品が異常な搬送をされた場合に、接触防止部材によって、ガラス製品がエアナイフに接触することを防止できる。 According to this configuration, when the glass product is transported abnormally, the contact prevention member can prevent the glass product from coming into contact with the air knife.
　前記接触防止部材は、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品の表面に搬送異常を意味するマークを付するマーカとしても機能し得る。 The contact prevention member may also function as a marker that attaches a mark indicating abnormal transportation to the surface of the glass product when the glass product is transported abnormally.
　かかる構成によれば、接触防止部材によってガラス製品にマークを付し、このマークを検出することで、搬送装置によるガラス製品の搬送に異常が発生したことを検出することが可能となる。この検出に基づいて搬送装置を保守すれば、早期に搬送異常を解決することができる。 According to this configuration, by attaching a mark to the glass product using the contact prevention member and detecting this mark, it is possible to detect that an abnormality has occurred in the transport of the glass product by the transport device. If the conveyance device is maintained based on this detection, the conveyance abnormality can be resolved at an early stage.
　前記接触防止部材は、前記ガラス製品に接触可能な弾性体を含んでもよい。かかる構成によれば、搬送異常によりガラス製品が弾性体に接触すると、弾性体はガラス製品に押圧されて弾性変形する。これにより、接触防止部材がガラス製品に接触したときにガラス製品に生じる衝撃を緩和することができる。また、この弾性変形により、ガラス製品に対する弾性体の接触面積を大きく確保することができる。これにより、接触防止部材をマーカとして使用する場合に、弾性体によってガラス製品に付されるマークを可及的に大きくすることが可能となる。 The contact prevention member may include an elastic body capable of contacting the glass product. According to this configuration, when the glass product comes into contact with the elastic body due to a transportation abnormality, the elastic body is pressed by the glass product and elastically deforms. Thereby, it is possible to reduce the impact that occurs on the glass product when the contact prevention member comes into contact with the glass product. Moreover, this elastic deformation makes it possible to ensure a large contact area of the elastic body with the glass product. Thereby, when the contact prevention member is used as a marker, it is possible to make the mark made on the glass product by the elastic body as large as possible.
　本発明に係るガラス製品の製造装置では、前記ガラス製品が正常に搬送されている場合において、前記接触防止部材と前記ガラス製品との離間距離は、前記エアナイフと前記ガラス製品との離間距離よりも小さく設定されており、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記エアナイフに接触しないように、前記接触防止部材が前記ガラス製品に接触することが好ましい。 In the glass product manufacturing apparatus according to the present invention, when the glass product is being transported normally, the distance between the contact prevention member and the glass product is longer than the distance between the air knife and the glass product. It is preferable that the contact prevention member contacts the glass product so that the glass product does not come into contact with the air knife when the glass product is conveyed abnormally.
　かかる構成によれば、搬送装置によるガラス製品の搬送に異常が発生した場合に、ガラス製品がエアナイフに接触することを防止できる。 According to this configuration, if an abnormality occurs in the transportation of the glass product by the transportation device, it is possible to prevent the glass product from coming into contact with the air knife.
　本発明に係るガラス製品の製造装置は、前記マークを検出する検査装置を備えてもよい。かかる構成によれば、搬送装置によるガラス製品の搬送異常を効率良く確実に検出することができる。 The glass product manufacturing apparatus according to the present invention may include an inspection device that detects the mark. According to this configuration, abnormality in the conveyance of glass products by the conveyance device can be detected efficiently and reliably.
　本発明に係るガラス製品の製造装置において、前記接触防止部材は、ローラを含んでもよい。かかる構成によれば、搬送装置による搬送異常が発生し、ガラス製品が接触防止部材に接触した場合に、ガラス製品に過大な摩擦力が作用することを防止できる。 In the glass product manufacturing apparatus according to the present invention, the contact prevention member may include a roller. According to this configuration, when a transport abnormality occurs in the transport device and the glass product comes into contact with the contact prevention member, it is possible to prevent excessive frictional force from acting on the glass product.
　前記接触防止部材は、前記搬送方向において、前記エアナイフの上流側及び下流側に配置されてもよい。かかる構成によれば、エアナイフの上流側及び下流側に設けられた接触防止部材によって、ガラス製品の搬送異常が発生したときに、ガラス製品のエアナイフへの接触を確実に防止できる。 The contact prevention member may be arranged upstream and downstream of the air knife in the conveyance direction. According to this configuration, the contact prevention members provided on the upstream and downstream sides of the air knife can reliably prevent the glass product from coming into contact with the air knife when a conveyance abnormality of the glass product occurs.
　前記接触防止部材は、前記搬送装置によって搬送される前記ガラス製品の上方に配置されてもよい。 The contact prevention member may be placed above the glass product transported by the transport device.
　本発明は上記の課題を解決するためのものであり、ガラス製品を所定の搬送方向に沿って搬送する搬送装置を備える、ガラス製品の製造装置であって、前記搬送装置によって正常に搬送される前記ガラス製品の表面に対して離間して配置される製造関連処理部と、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記製造関連処理部に接触しないように、前記ガラス製品の前記表面に接触する接触防止部材と、を備え、前記接触防止部材は、前記搬送方向において前記製造関連処理部の上流側及び下流側の少なくとも一方に配置されることを特徴とする。 The present invention is intended to solve the above-mentioned problems, and is a manufacturing apparatus for glass products, which is equipped with a conveyance device that conveys glass products along a predetermined conveyance direction, and in which the glass products are normally conveyed by the conveyance device. a manufacturing-related processing section disposed apart from the surface of the glass product; a contact prevention member that comes into contact with the surface of the product, and the contact prevention member is disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction.
　かかる構成によれば、ガラス製品が異常な搬送をされた場合に、接触防止部材によって、ガラス製品が製造関連処理部に接触することを防止できる。 According to this configuration, when the glass product is transported abnormally, the contact prevention member can prevent the glass product from coming into contact with the manufacturing-related processing section.
　本発明は上記の課題を解決するためのものであり、ガラス製品を所定の搬送方向に沿って搬送しつつ、前記ガラス製品を洗浄装置によって洗浄する洗浄工程と、前記洗浄工程後に、前記ガラス製品を前記搬送方向に沿って搬送しつつ、エアナイフによって前記ガラス製品に気体を吹き付ける乾燥工程と、を備える、ガラス製品の製造方法であって、前記ガラス製品が異常な搬送をされた場合に、前記搬送方向において前記エアナイフの上流側及び下流側の少なくとも一方に配置される接触防止部材を前記ガラス製品に接触させることにより、前記ガラス製品の前記エアナイフへの接触を防止することを特徴とする。 The present invention is intended to solve the above-mentioned problems, and includes a cleaning step in which the glass product is washed by a cleaning device while the glass product is transported along a predetermined transport direction; a drying step of blowing gas onto the glass product using an air knife while conveying the glass product along the conveyance direction, the method includes: The glass product is prevented from coming into contact with the air knife by bringing a contact prevention member disposed on at least one of the upstream side and the downstream side of the air knife in the conveyance direction into contact with the glass product.
　かかる構成によれば、ガラス製品が異常な搬送をされた場合に、接触防止部材をガラス製品に接触させることによって、ガラス製品がエアナイフに接触することを防止できる。 According to this configuration, when the glass product is transported abnormally, the contact prevention member can be brought into contact with the glass product to prevent the glass product from coming into contact with the air knife.
　本発明は上記の課題を解決するためのものであり、ガラス製品を所定の搬送方向に沿って搬送しつつ、製造関連処理部によって、前記ガラス製品に対して製造関連処理を施す製造関連処理工程を備える、ガラス製品の製造方法であって、前記ガラス製品が異常な搬送をされた場合に、搬送方向において前記製造関連処理部の上流側及び下流側の少なくとも一方に配置される接触防止部材を前記ガラス製品に接触させることにより、前記ガラス製品の前記製造関連処理部への接触を防止することを特徴とする。 The present invention is intended to solve the above-mentioned problems, and includes a manufacturing-related processing step in which a manufacturing-related processing section performs manufacturing-related processing on the glass product while transporting the glass product along a predetermined transport direction. A method for manufacturing a glass product, comprising: a contact prevention member disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the conveyance direction when the glass product is conveyed abnormally. By contacting the glass product, the glass product is prevented from coming into contact with the manufacturing-related processing section.
　かかる構成によれば、ガラス製品が異常な搬送をされた場合に、接触防止部材をガラス製品に接触させることによって、ガラス製品が製造関連処理部に接触することを防止できる。 According to this configuration, when the glass product is transported abnormally, by bringing the contact prevention member into contact with the glass product, it is possible to prevent the glass product from coming into contact with the manufacturing-related processing section.
　本発明は上記の課題を解決するためのものであり、ガラス製品を所定の搬送方向に沿って搬送する搬送装置と、前記ガラス製品に気体を吹き付けるエアナイフと、を備える、ガラス製品の製造装置であって、前記搬送方向において前記エアナイフの上流側に配置される接触防止部材を備え、前記ガラス製品が正常に搬送されている場合において、前記接触防止部材と前記ガラス製品との離間距離は、前記エアナイフと前記ガラス製品との離間距離よりも小さく設定されることを特徴とする。 The present invention is intended to solve the above-mentioned problems, and provides a glass product manufacturing apparatus that includes a transport device that transports glass products along a predetermined transport direction, and an air knife that blows gas onto the glass products. and a contact prevention member disposed upstream of the air knife in the transport direction, and when the glass product is normally transported, the separation distance between the contact prevention member and the glass product is equal to the distance between the contact prevention member and the glass product. The distance between the air knife and the glass product is set to be smaller than the distance between the air knife and the glass product.
　かかる構成によれば、ガラス製品が異常な搬送をされた場合に、接触防止部材がガラス製品に接触することによって、ガラス製品がエアナイフに接触することを防止できる。 According to this configuration, when the glass product is conveyed abnormally, the contact prevention member comes into contact with the glass product, thereby preventing the glass product from coming into contact with the air knife.
　本発明によれば、ガラス製品が異常な搬送をされた場合に、エアナイフ等の製造関連処理を行う製造関連処理部へのガラス製品の接触を防止することができる。 According to the present invention, when a glass product is transported abnormally, it is possible to prevent the glass product from coming into contact with a manufacturing-related processing unit that performs manufacturing-related processing such as an air knife.
ガラス製品の製造装置を示す側面図である。FIG. 1 is a side view showing a glass product manufacturing apparatus. ガラス製品の製造装置における乾燥部を示す側面図である。FIG. 2 is a side view showing a drying section in the glass product manufacturing apparatus. 図１のＩＩＩ－ＩＩＩ矢視線に係る図である。2 is a view taken along the line III-III in FIG. 1. FIG. ガラス製品の製造方法を示すフローチャートである。It is a flowchart which shows the manufacturing method of a glass product. マーキング工程を示す側面図である。It is a side view which shows a marking process. マーキング工程を示す図である。It is a figure showing a marking process. 検査工程を示す斜視図である。It is a perspective view showing an inspection process.
　以下、本発明を実施するための形態について、図面を参照しながら説明する。図１乃至図７は、本発明に係るガラス製品の製造装置及び製造方法の一実施形態を示す。以下では、ガラス製品として矩形状のガラス板を例示するが、ガラス製品の形状は本実施形態に限定されない。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 7 show an embodiment of a glass product manufacturing apparatus and manufacturing method according to the present invention. Although a rectangular glass plate will be exemplified below as a glass product, the shape of the glass product is not limited to this embodiment.
　図１に示すように、ガラス製品の製造装置１は、洗浄部２と、乾燥部３と、検査部４と、ガラス板Ｇを所定の搬送方向Ｘに沿って搬送する搬送装置５ａ～５ｃと、を備える。以下、製造装置１におけるこれらの構成要素の位置関係を説明する場合に、ガラス板Ｇの搬送方向Ｘに基づいて、「上流側」、「下流側」の用語を用いる場合がある。 As shown in FIG. 1, the glass product manufacturing apparatus 1 includes a cleaning section 2, a drying section 3, an inspection section 4, and transport devices 5a to 5c that transport the glass plate G along a predetermined transport direction X. , is provided. Hereinafter, when describing the positional relationship of these components in the manufacturing apparatus 1, the terms "upstream side" and "downstream side" may be used based on the transport direction X of the glass plate G.
　洗浄部２は、第一洗浄装置６と、この第一洗浄装置６の下流側に設けられる第二洗浄装置７とを備える。 The cleaning section 2 includes a first cleaning device 6 and a second cleaning device 7 provided downstream of the first cleaning device 6.
　第一洗浄装置６は、洗浄液をガラス板Ｇに供給する装置（以下「第一供給装置」という）８と、第一供給装置８の下流側に配置される洗浄具９とを備える。 The first cleaning device 6 includes a device 8 for supplying cleaning liquid to the glass plate G (hereinafter referred to as "first supply device"), and a cleaning tool 9 disposed downstream of the first supply device 8.
　第一供給装置８は、ガラス板Ｇの表面（上面Ｇａ及び下面Ｇｂ）の全域に洗浄液１０を供給するように、上下一対の供給装置を含む。第一供給装置８によって供給される洗浄液１０には、例えば純水を使用することができ、必要に応じて洗剤（酸性洗剤、アルカリ性洗剤）や界面活性剤、アルカリイオン水等を添加してもよい。 The first supply device 8 includes a pair of upper and lower supply devices so as to supply the cleaning liquid 10 to the entire surface of the glass plate G (upper surface Ga and lower surface Gb). For example, pure water can be used as the cleaning liquid 10 supplied by the first supply device 8, and detergents (acidic detergents, alkaline detergents), surfactants, alkaline ionized water, etc. may be added as necessary. good.
　洗浄具９は、ガラス板Ｇの表面Ｇａ，Ｇｂを擦って表面Ｇａ，Ｇｂに付着した異物等の汚れを除去する上下一対の洗浄ローラにより構成される。洗浄ローラは、ガラス板Ｇとの接触部をスポンジ等の弾性材料で形成したものであってもよく、ブラシで形成したものであってもよい。前者の場合、洗浄ローラはスポンジローラとなり、後者の場合、洗浄ローラはブラシローラとなる。洗浄ローラに代えて洗浄ディスクを用いてもよく、洗浄ローラと洗浄ディスクを組み合わせてもよい。 The cleaning tool 9 is composed of a pair of upper and lower cleaning rollers that scrub the surfaces Ga and Gb of the glass plate G to remove dirt such as foreign matter adhering to the surfaces Ga and Gb. The cleaning roller may have a contact portion with the glass plate G made of an elastic material such as a sponge, or may be made of a brush. In the former case, the cleaning roller is a sponge roller, and in the latter case, the cleaning roller is a brush roller. A cleaning disk may be used instead of the cleaning roller, or the cleaning roller and the cleaning disk may be combined.
　第二洗浄装置７は、第一洗浄装置６を通過したガラス板Ｇにリンス液（すすぎ液）１１を供給する上下一対の供給装置（以下「第二供給装置」という）１２を備える。第二供給装置１２によってガラス板Ｇに供給されるリンス液１１としては、純水など公知の種類のリンス用液体を使用することが可能である。 The second cleaning device 7 includes a pair of upper and lower supply devices (hereinafter referred to as "second supply device") 12 that supply a rinsing liquid 11 to the glass plate G that has passed through the first cleaning device 6. As the rinsing liquid 11 supplied to the glass plate G by the second supply device 12, it is possible to use a known type of rinsing liquid such as pure water.
　図１乃至図３に示すように、乾燥部３は、ガラス板Ｇに気体１３を吹き付ける上下一対の第一エアナイフ１４と、第一エアナイフ１４の下流側に設けられる上下一対の第二エアナイフ１５と、ガラス板Ｇがエアナイフ１４，１５に接触することを防止する第一接触防止部材１６及び第二接触防止部材１７と、を備える。 As shown in FIGS. 1 to 3, the drying section 3 includes a pair of upper and lower first air knives 14 that spray gas 13 onto the glass plate G, and a pair of upper and lower second air knives 15 provided downstream of the first air knife 14. , a first contact prevention member 16 and a second contact prevention member 17 that prevent the glass plate G from contacting the air knives 14 and 15.
　第一エアナイフ１４は、金属製であり、例えばステンレス鋼により構成される。第一エアナイフ１４は、ガラス板Ｇに所定の製造関連処理を行う製造関連処理部である。具体的には、第一エアナイフ１４は、第二洗浄装置７を通過したガラス板Ｇの表面Ｇａ，Ｇｂにクリーンドライエア等の気体１３を吹き付けるための気体吹付装置である。第一エアナイフ１４は、気体１３を噴出する噴出口１４ａを備える。 The first air knife 14 is made of metal, for example, stainless steel. The first air knife 14 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G. Specifically, the first air knife 14 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the second cleaning device 7. The first air knife 14 includes a spout 14a that spews out the gas 13.
　上下一対の第一エアナイフ１４のうち、上側の第一エアナイフ１４の噴出口１４ａは、この第一エアナイフ１４において最も下方に位置する部位（下端部）である。すなわち、上側の第一エアナイフ１４の噴出口１４ａは、ガラス板Ｇの上面Ｇａに最も近い位置にある部位である。ガラス板Ｇが正常に搬送されている場合において、上側の第一エアナイフ１４の噴出口１４ａと、ガラス板Ｇの上面Ｇａとの離間距離ＤＡ１は、２．０～３．０ｍｍであることが好ましい。 Of the pair of upper and lower first air knives 14, the spout 14a of the upper first air knife 14 is the lowest position (lower end) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the upper side is a portion located closest to the upper surface Ga of the glass plate G. When the glass plate G is being transported normally, the distance DA1 between the jet port 14a of the upper first air knife 14 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .
　下側の第一エアナイフ１４の噴出口１４ａは、この第一エアナイフ１４において最も上方に位置する部位（上端部）である。すなわち、下側の第一エアナイフ１４の噴出口１４ａは、ガラス板Ｇの下面Ｇｂに最も近い位置にある部位である。ガラス板Ｇが正常に搬送されている場合において、下側の第一エアナイフ１４の噴出口１４ａと、ガラス板Ｇの下面Ｇｂとの離間距離ＤＡ２は、２．０～３．０ｍｍであることが好ましい。 The jet nozzle 14a of the lower first air knife 14 is the uppermost portion (upper end portion) of the first air knife 14. That is, the jet nozzle 14a of the first air knife 14 on the lower side is a portion located closest to the lower surface Gb of the glass plate G. When the glass plate G is being transported normally, the distance DA2 between the jet nozzle 14a of the lower first air knife 14 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.
　第二エアナイフ１５は、金属製であり、例えばステンレス鋼により構成される。第二エアナイフ１５は、第一エアナイフ１４と同じ形状を有していてもよい。第二エアナイフ１５は、ガラス板Ｇに所定の製造関連処理を行う製造関連処理部である。具体的には、第二エアナイフ１５は、第一エアナイフ１４を通過したガラス板Ｇの表面Ｇａ，Ｇｂにクリーンドライエア等の気体１３を吹き付けるための気体吹付装置である。第二エアナイフ１５は、気体１３を噴出する噴出口１５ａを備える。 The second air knife 15 is made of metal, for example, stainless steel. The second air knife 15 may have the same shape as the first air knife 14. The second air knife 15 is a manufacturing-related processing section that performs predetermined manufacturing-related processing on the glass plate G. Specifically, the second air knife 15 is a gas blowing device for blowing a gas 13 such as clean dry air onto the surfaces Ga and Gb of the glass plate G that have passed through the first air knife 14. The second air knife 15 includes a spout 15a that spouts out the gas 13.
　上下一対の第二エアナイフ１５のうち、上側の第二エアナイフ１５の噴出口１５ａは、この第二エアナイフ１５において最も下方に位置する部位（下端部）である。すなわち、上側の第二エアナイフ１５の噴出口１５ａは、ガラス板Ｇの上面Ｇａに最も近い位置にある部位である。ガラス板Ｇが正常に搬送されている場合において、上側の第二エアナイフ１５の噴出口１５ａと、ガラス板Ｇの上面Ｇａとの離間距離ＤＡ３は、２．０～３．０ｍｍであることが好ましい。 Of the pair of upper and lower second air knives 15, the spout 15a of the upper second air knife 15 is the lowest position (lower end) of the second air knife 15. That is, the spout 15a of the upper second air knife 15 is the part located closest to the upper surface Ga of the glass plate G. When the glass plate G is being transported normally, the distance DA3 between the spout 15a of the upper second air knife 15 and the upper surface Ga of the glass plate G is preferably 2.0 to 3.0 mm. .
　下側の第二エアナイフ１５の噴出口１５ａは、この第二エアナイフ１５において最も上方に位置する部位（上端部）である。すなわち、下側の第二エアナイフ１５の噴出口１５ａは、ガラス板Ｇの下面Ｇｂに最も近い位置にある部位である。ガラス板Ｇが正常に搬送されている場合において、下側の第二エアナイフ１５の噴出口１５ａと、ガラス板Ｇの下面Ｇｂとの離間距離ＤＡ４は、２．０～３．０ｍｍであることが好ましい。 The jet nozzle 15a of the second air knife 15 on the lower side is the uppermost portion (upper end portion) of the second air knife 15. That is, the jet nozzle 15a of the second air knife 15 on the lower side is a portion located closest to the lower surface Gb of the glass plate G. When the glass plate G is being transported normally, the distance DA4 between the jet nozzle 15a of the lower second air knife 15 and the lower surface Gb of the glass plate G is 2.0 to 3.0 mm. preferable.
　各接触防止部材１６，１７は、ガラス板Ｇが異常な搬送をされた場合に、ガラス板Ｇに接触することによって、ガラス板Ｇがエアナイフ１４，１５に接触することを防止する。各接触防止部材１６，１７は、異常な搬送をされたガラス板Ｇの表面Ｇａ，Ｇｂに接触して搬送異常を意味するマークを付するマーカとしても機能する。ガラス板Ｇが正常に搬送されている場合には、各接触防止部材１６，１７はガラス板Ｇから離れており、各接触防止部材１６，１７がガラス板Ｇに接触することはない。 Each of the contact prevention members 16 and 17 prevents the glass plate G from contacting the air knives 14 and 15 by contacting the glass plate G when the glass plate G is conveyed abnormally. Each of the contact prevention members 16 and 17 also functions as a marker that comes into contact with the surfaces Ga and Gb of the glass plate G that has been conveyed abnormally and attaches a mark indicating that the conveyance is abnormal. When the glass plate G is being conveyed normally, each contact prevention member 16, 17 is separated from the glass plate G, and each contact prevention member 16, 17 does not come into contact with the glass plate G.
　第一接触防止部材１６は、第一エアナイフ１４の上流側に位置する上下一対の上流側接触防止部材１６ａ１，１６ａ２と、第一エアナイフ１４の下流側に位置する上下一対の下流側接触防止部材１６ｂ１，１６ｂ２と、を含む。第二接触防止部材１７は、第二エアナイフ１５の上流側に位置する上下一対の上流側接触防止部材１７ａ１，１７ａ２と、第二エアナイフ１５の下流側に位置する上下一対の下流側接触防止部材１７ｂ１，１７ｂ２と、を含む。 The first contact prevention member 16 includes a pair of upper and lower upstream contact prevention members 16a1 and 16a2 located upstream of the first air knife 14, and a pair of upper and lower downstream contact prevention members 16b1 located downstream of the first air knife 14. , 16b2. The second contact prevention member 17 includes a pair of upper and lower upstream contact prevention members 17a1 and 17a2 located upstream of the second air knife 15, and a pair of upper and lower downstream contact prevention members 17b1 located downstream of the second air knife 15. , 17b2.
　第一接触防止部材１６及び第二接触防止部材１７における上流側接触防止部材１６ａ１，１６ａ２，１７ａ１，１７ａ２は、搬送されるガラス板Ｇの上方に位置する上接触防止部材１６ａ１，１７ａ１と、ガラス板Ｇの下方に位置する下接触防止部材１６ａ２，１７ａ２とを含む。 The upstream contact prevention members 16a1, 16a2, 17a1, 17a2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16a1, 17a1 located above the glass plate G being conveyed, and the glass plate and lower contact prevention members 16a2 and 17a2 located below G.
　図２に示すように、ガラス板Ｇが正常に搬送されている場合において、上接触防止部材１６ａ１，１７ａ１とガラス板Ｇの上面Ｇａとの離間距離ＤＢ１は、ガラス板Ｇの上方に位置するエアナイフ１４，１５とガラス板Ｇとの離間距離ＤＡ１，ＤＡ３よりも小さく設定されている。同様に、ガラス板Ｇが正常に搬送されている場合において、下接触防止部材１６ａ２，１７ａ２とガラス板Ｇの下面Ｇｂとの離間距離ＤＢ２は、ガラス板Ｇの下方に位置するエアナイフ１４，１５とガラス板Ｇの下面Ｇｂの離間距離ＤＡ２，ＤＡ４よりも小さく設定されている。 As shown in FIG. 2, when the glass plate G is being transported normally, the separation distance DB1 between the upper contact prevention members 16a1, 17a1 and the upper surface Ga of the glass plate G is determined by the air knife located above the glass plate G. The distances DA1 and DA3 between the glass plates 14 and 15 are set smaller than the distances DA1 and DA3. Similarly, when the glass plate G is being conveyed normally, the distance DB2 between the lower contact prevention members 16a2 and 17a2 and the lower surface Gb of the glass plate G is the same as the distance between the air knives 14 and 15 located below the glass plate G. The distances DA2 and DA4 between the lower surfaces Gb of the glass plates G are set smaller.
　第一接触防止部材１６及び第二接触防止部材１７における下流側接触防止部材１６ｂ１，１６ｂ２，１７ｂ１，１７ｂ２は、搬送されるガラス板Ｇの上方に位置する上接触防止部材１６ｂ１，１７ｂ１と、ガラス板Ｇの下方に位置する下接触防止部材１６ｂ２，１７ｂ２とを含む。正常に搬送されているガラス板Ｇの表面Ｇａ，Ｇｂと、下流側接触防止部材１６ｂ１，１６ｂ２，１７ｂ１，１７ｂ２との各離間距離ＤＢ３，ＤＢ４は、正常に搬送されているガラス板Ｇの表面Ｇａ，Ｇｂと各エアナイフ１４，１５との各離間距離ＤＡ１～ＤＡ４よりも小さく設定されている。 The downstream contact prevention members 16b1, 16b2, 17b1, 17b2 in the first contact prevention member 16 and the second contact prevention member 17 are connected to the upper contact prevention members 16b1, 17b1 located above the glass plate G being conveyed, and the glass plate lower contact prevention members 16b2 and 17b2 located below G. The distances DB3 and DB4 between the surfaces Ga and Gb of the glass plate G that are normally transported and the downstream contact prevention members 16b1, 16b2, 17b1, and 17b2 are the surface Ga of the glass plate G that is normally transported. , Gb and each of the air knives 14, 15 are set smaller than the respective separation distances DA1 to DA4.
　正常に搬送されているガラス板Ｇの表面Ｇａ，Ｇｂと各接触防止部材１６，１７との離間距離ＤＢ１～ＤＢ４は、０～３．０ｍｍであることが好ましい。また、搬送方向Ｘにおける第一接触防止部材１６と第一エアナイフ１４の噴出口１４ａとの離間距離は、０．１～２０ｍｍであることが好ましい。また、搬送方向Ｘにおける第二接触防止部材１７と第二エアナイフ１５の噴出口１５ａとの離間距離は、０．１～２０ｍｍであることが好ましい。 It is preferable that the distances DB1 to DB4 between the surfaces Ga and Gb of the normally transported glass plate G and each of the contact prevention members 16 and 17 are 0 to 3.0 mm. Furthermore, the distance between the first contact prevention member 16 and the jet nozzle 14a of the first air knife 14 in the transport direction X is preferably 0.1 to 20 mm. Further, the distance between the second contact prevention member 17 and the jet port 15a of the second air knife 15 in the transport direction X is preferably 0.1 to 20 mm.
　図３に示すように、第一接触防止部材１６の上流側接触防止部材１６ａ１，１６ａ２は、ガラス板Ｇの幅方向ＧＸに沿って所定の間隔で配置される複数の接触防止部材を含む。第一接触防止部材１６の下流側接触防止部材１６ｂ１，１６ｂ２及び第二接触防止部材１７（上流側接触防止部材１７ａ１，１７ａ２及び下流側接触防止部材１７ｂ１，１７ｂ２）についても、ガラス板Ｇの幅方向ＧＸに沿って複数の接触防止部材を含むように構成してもよい。 As shown in FIG. 3, the upstream contact prevention members 16a1 and 16a2 of the first contact prevention member 16 include a plurality of contact prevention members arranged at predetermined intervals along the width direction GX of the glass plate G. Regarding the downstream contact prevention members 16b1, 16b2 of the first contact prevention member 16 and the second contact prevention member 17 (upstream contact prevention members 17a1, 17a2 and downstream contact prevention members 17b1, 17b2), the width direction of the glass plate G is It may be configured to include a plurality of contact prevention members along GX.
　各接触防止部材１６，１７は、例えばローラにより構成される。具体的には、各接触防止部材１６，１７は、ローラ本体１８と、ローラ本体１８を回転可能に支持する軸部１９と、を備える。ローラ本体１８は、例えば樹脂により円筒状に構成される。軸部１９は、ガラス板Ｇの搬送方向Ｘに対して直交する水平方向に沿って延びる。 Each contact prevention member 16, 17 is constituted by, for example, a roller. Specifically, each contact prevention member 16, 17 includes a roller body 18 and a shaft portion 19 that rotatably supports the roller body 18. The roller body 18 is made of, for example, resin and has a cylindrical shape. The shaft portion 19 extends along the horizontal direction orthogonal to the transport direction X of the glass plate G.
　ローラ本体１８は、その外周面に、ガラス板Ｇに接触可能な接触部２０を備える。接触部２０は、ローラ本体１８の外周面の全周にわたって設けられている。接触部２０は、弾性体により構成されることが好ましい。弾性体に使用される材料としては、例えばゴム等が挙げられる。本実施形態では、弾性体は、環状に構成されており、ローラ本体１８の外周面に着脱自在に取り付けられている。なお、弾性体は、濃色に着色されていることが好ましい。これにより、後述するようにガラス板Ｇに対して搬送異常を検出しやすいマークを付けることができる。 The roller body 18 includes a contact portion 20 that can come into contact with the glass plate G on its outer peripheral surface. The contact portion 20 is provided over the entire outer peripheral surface of the roller body 18. It is preferable that the contact portion 20 is made of an elastic body. Examples of materials used for the elastic body include rubber. In this embodiment, the elastic body has an annular configuration and is detachably attached to the outer peripheral surface of the roller body 18. Note that the elastic body is preferably colored in a dark color. Thereby, as will be described later, it is possible to mark the glass plate G with a mark that makes it easy to detect conveyance abnormalities.
　検査部４は、ガラス板Ｇの検査を行う検査装置２１を備える。検査装置２１は、ガラス板Ｇの表面Ｇａ，Ｇｂを撮像する撮像装置２２と、画像処理装置２３と、を含む。 The inspection unit 4 includes an inspection device 21 that inspects the glass plate G. The inspection device 21 includes an imaging device 22 that images surfaces Ga and Gb of the glass plate G, and an image processing device 23.
　撮像装置２２は、所定の姿勢で搬送されるガラス板Ｇの表面Ｇａ，Ｇｂを撮像し、その画像データを取得する。撮像装置２２は、取得した画像データを画像処理装置２３に送信することができる。画像処理装置２３は、コンピュータにより構成され、撮像装置２２から送信された画像データに基づいて、ガラス板Ｇにおける欠陥の有無、接触防止部材（マーカ）１６，１７によるマークの有無等を検査することができる。 The imaging device 22 images the surfaces Ga and Gb of the glass plate G being conveyed in a predetermined posture, and acquires the image data. The imaging device 22 can transmit the acquired image data to the image processing device 23. The image processing device 23 is configured by a computer, and inspects the presence or absence of defects in the glass plate G, the presence or absence of marks by contact prevention members (markers) 16 and 17, etc. based on the image data transmitted from the imaging device 22. I can do it.
　図１及び図２に示すように、搬送装置５ａ～５ｃは、洗浄部２においてガラス板Ｇを搬送する第一搬送装置５ａと、乾燥部３においてガラス板Ｇを搬送する第二搬送装置５ｂと、検査部４においてガラス板Ｇを搬送する第三搬送装置５ｃと、を含む。各搬送装置５ａ～５ｃは、例えばローラコンベアにより構成される。各搬送装置５ａ～５ｃは、ガラス板Ｇの搬送方向Ｘに沿って間隔をおいて配置される複数の搬送ローラ２４を有する。 As shown in FIGS. 1 and 2, the transport devices 5a to 5c include a first transport device 5a that transports the glass plate G in the cleaning section 2, and a second transport device 5b that transports the glass plate G in the drying section 3. , and a third conveyance device 5c that conveys the glass plate G in the inspection section 4. Each of the conveyance devices 5a to 5c is constituted by, for example, a roller conveyor. Each of the conveyance devices 5a to 5c has a plurality of conveyance rollers 24 arranged at intervals along the conveyance direction X of the glass plate G.
　搬送装置５ａ～５ｃは、ガラス板Ｇを所定の高さ、所定の姿勢で搬送するように、複数の搬送ローラ２４の上下方向及び水平方向の位置を調整することができる。 The conveyance devices 5a to 5c can adjust the vertical and horizontal positions of the plurality of conveyance rollers 24 so as to convey the glass plate G at a predetermined height and in a predetermined posture.
　図３に示すように、搬送ローラ２４は、ガラス板Ｇの搬送方向Ｘに直交する水平方向に対して所定の角度θで傾斜している。搬送ローラ２４の傾斜角度θは、１～１０°とされることが好ましい。この構成により、搬送ローラ２４によって正常に搬送されるガラス板Ｇは、傾斜姿勢で搬送されることになる。 As shown in FIG. 3, the conveyance roller 24 is inclined at a predetermined angle θ with respect to the horizontal direction perpendicular to the conveyance direction X of the glass plate G. The inclination angle θ of the conveyance roller 24 is preferably 1 to 10 degrees. With this configuration, the glass plate G normally transported by the transport rollers 24 is transported in an inclined posture.
　この場合において、ガラス板Ｇの幅方向ＧＸにおける一方の端部（以下「第一端部」という）Ｇｃは、ガラス板Ｇの幅方向ＧＸにおける他方の端部（以下「第二端部」という）Ｇｄよりも下方に位置する。ガラス板Ｇは、第一端部Ｇｃが図示しないローラによって支持された状態で搬送されてもよい。 In this case, one end (hereinafter referred to as "first end") Gc of the glass plate G in the width direction GX is different from the other end (hereinafter referred to as "second end") of the glass plate G in the width direction GX. ) located below Gd. The glass plate G may be conveyed with the first end Gc supported by a roller (not shown).
　上記のように、搬送ローラ２４によってガラス板Ｇが傾斜姿勢で搬送されることにより、ガラス板Ｇに供給された洗浄液１０又はリンス液１１は、第二端部Ｇｄ側から第一端部Ｇｃ側に向かって流れ、第一端部Ｇｃから流れ落ちることになる。 As described above, by conveying the glass plate G in an inclined posture by the conveyance roller 24, the cleaning liquid 10 or the rinsing liquid 11 supplied to the glass plate G is transferred from the second end Gd side to the first end Gc side. The liquid flows toward the first end Gc and falls from the first end Gc.
　以下、上記の構成を有する製造装置１を使用してガラス板Ｇを製造する方法について説明する。図４に示すように、本方法は、加工工程Ｓ１と、洗浄工程Ｓ２と、乾燥工程Ｓ３と、検査工程Ｓ４と、を含む。 Hereinafter, a method for manufacturing the glass plate G using the manufacturing apparatus 1 having the above configuration will be described. As shown in FIG. 4, this method includes a processing step S1, a cleaning step S2, a drying step S3, and an inspection step S4.
　加工工程Ｓ１は、製造関連処理工程であり、例えば砥石によってガラス板Ｇの端面を加工する工程や、ガラス板Ｇの表面を研磨する工程、ガラス板Ｇの表面を粗化する工程が該当する。本方法では、加工工程Ｓ１の前工程として、ガラス原板から所望のサイズのガラス板Ｇを切り出す切断工程（製造関連処理工程）を設けてもよい。なお、ガラス原板には、例えばオーバーフロー法やフロート法で成形されたガラスリボンから切り出されたガラス板を用いることができる。 The processing step S1 is a manufacturing-related processing step, and includes, for example, a step of processing the end face of the glass plate G with a grindstone, a step of polishing the surface of the glass plate G, and a step of roughening the surface of the glass plate G. In this method, a cutting step (manufacturing-related processing step) for cutting out a glass plate G of a desired size from a glass original plate may be provided as a pre-process to the processing step S1. Note that a glass plate cut out from a glass ribbon formed by, for example, an overflow method or a float method can be used as the glass original plate.
　加工工程Ｓ１を経たガラス板Ｇとしては、例えば長さ、幅がそれぞれ１００～５０００ｍｍ、厚みが５０～１５００μｍのディスプレイ用ガラス板が挙げられる。このようなガラス板Ｇは、成形条件等により厚み方向に反っている場合がある。 Examples of the glass plate G that has undergone the processing step S1 include display glass plates having a length and a width of 100 to 5000 mm, and a thickness of 50 to 1500 μm. Such a glass plate G may be warped in the thickness direction depending on molding conditions and the like.
　洗浄工程Ｓ２は、加工工程Ｓ１後のガラス板Ｇを洗浄する製造関連処理工程である。洗浄工程Ｓ２では、第一搬送装置５ａによってガラス板Ｇを搬送方向Ｘに沿って搬送しつつ、第一洗浄装置６の第一供給装置８によって、ガラス板Ｇの表面Ｇａ，Ｇｂに洗浄液１０を供給する。その後、第一洗浄装置６の洗浄具９によって、ガラス板Ｇの表面Ｇａ，Ｇｂに対して擦り洗浄を行う。 The cleaning step S2 is a manufacturing-related treatment step that cleans the glass plate G after the processing step S1. In the cleaning step S2, while the glass plate G is conveyed along the conveyance direction X by the first conveyance device 5a, the cleaning liquid 10 is applied to the surfaces Ga and Gb of the glass plate G by the first supply device 8 of the first cleaning device 6. supply Thereafter, the surfaces Ga and Gb of the glass plate G are scrubbed and cleaned using the cleaning tool 9 of the first cleaning device 6.
　その後、第一搬送装置５ａによって搬送されるガラス板Ｇは、第二洗浄装置７に到達する。第二洗浄装置７では、搬送されてきたガラス板Ｇの表面Ｇａ，Ｇｂに第二供給装置１２によってリンス液１１を供給することで、ガラス板Ｇに対するリンス洗浄を行う。その後、第一搬送装置５ａは、ガラス板Ｇを乾燥部３へと搬送する。 Thereafter, the glass plate G transported by the first transport device 5a reaches the second cleaning device 7. In the second cleaning device 7, the second supply device 12 supplies the rinsing liquid 11 to the surfaces Ga and Gb of the glass plate G that has been transported, thereby rinsing the glass plate G. After that, the first conveyance device 5a conveys the glass plate G to the drying section 3.
　乾燥工程Ｓ３は、洗浄工程Ｓ２後のガラス板Ｇを乾燥させる製造関連処理工程である。乾燥工程Ｓ３では、ガラス板Ｇを第二搬送装置５ｂによって搬送しつつ、このガラス板Ｇに対して、第一エアナイフ１４から気体１３を吹き付ける（第一乾燥工程）。これにより、ガラス板Ｇの表面Ｇａ，Ｇｂに残存していたリンス液１１が除去される。 The drying step S3 is a manufacturing-related processing step that dries the glass plate G after the cleaning step S2. In the drying step S3, gas 13 is blown onto the glass plate G from the first air knife 14 while the glass plate G is being transported by the second transporting device 5b (first drying step). As a result, the rinsing liquid 11 remaining on the surfaces Ga and Gb of the glass plate G is removed.
　その後、第一エアナイフ１４を通過し、第二エアナイフ１５に到達したガラス板Ｇに対して、第二エアナイフ１５から気体１３を吹き付ける（第二乾燥工程）。これにより、ガラス板Ｇの表面Ｇａ，Ｇｂを乾燥させることができる。 Thereafter, the gas 13 is blown from the second air knife 15 onto the glass plate G that has passed through the first air knife 14 and reached the second air knife 15 (second drying step). Thereby, the surfaces Ga and Gb of the glass plate G can be dried.
　上記の各工程の他、本方法は、ガラス板Ｇが異常な搬送をされた場合に、ガラス板Ｇにマークを付するマーキング工程を備えてもよい。以下、このマーキング工程について、第一接触防止部材１６の上流側接触防止部材である上接触防止部材１６ａ１によってガラス板Ｇにマークを付する場合を例として説明する。 In addition to the above-mentioned steps, the present method may include a marking step of attaching a mark to the glass plate G when the glass plate G is conveyed abnormally. Hereinafter, this marking step will be explained using an example in which a mark is attached to the glass plate G by the upper contact prevention member 16a1, which is the upstream contact prevention member of the first contact prevention member 16.
　例えば、第二搬送装置５ｂに対するメンテナンス作業の際に、搬送ローラ２４が所定の位置からずれた不適切な位置に配置される場合がある。図５及び図６では、適切な位置にある搬送ローラ２４を実線で示し、不適切な位置にある搬送ローラ２４を二点鎖線で示す。 For example, during maintenance work on the second conveyance device 5b, the conveyance roller 24 may be placed at an inappropriate position deviated from a predetermined position. In FIGS. 5 and 6, the conveyance roller 24 in an appropriate position is shown by a solid line, and the conveyance roller 24 in an inappropriate position is shown by a chain double-dashed line.
　図５及び図６に示すように、不適切な位置にある搬送ローラ２４（二点鎖線）は、適切な位置にある搬送ローラ２４（実線）よりも、第一接触防止部材１６の上接触防止部材１６ａ１に近い位置にある。この場合、不適切な位置になる搬送ローラ２４をガラス板Ｇが通過する際に、この搬送ローラ２４によってガラス板Ｇが持ち上げられることで、ガラス板Ｇに振動が発生する。 As shown in FIGS. 5 and 6, the conveyance roller 24 (two-dot chain line) in an inappropriate position is more likely to prevent the upper contact of the first contact prevention member 16 than the conveyance roller 24 (solid line) in an appropriate position. It is located near the member 16a1. In this case, when the glass plate G passes the conveyance roller 24 which is in an inappropriate position, the glass plate G is lifted by the conveyance roller 24, thereby causing vibration in the glass plate G.
　マーキング工程では、上記のように第二搬送装置５ｂにおいてガラス板Ｇの搬送異常が発生した場合に、ガラス板Ｇの上面Ｇａが、図５及び図６において二点鎖線で示すように、上接触防止部材１６ａ１の接触部２０に接触する。この際、上接触防止部材１６ａ１のローラ本体１８が回転するとともに、接触部２０としての弾性体がこの接触によって弾性変形する。さらに、弾性変形した接触部２０がガラス板Ｇの上面Ｇａと擦れ合うことで、弾性体を構成するゴムの一部がガラス板Ｇの上面Ｇａに転写される。これにより、ガラス板Ｇの上面Ｇａに、マーク（接触跡）が付される。 In the marking process, when a conveyance abnormality of the glass plate G occurs in the second conveyance device 5b as described above, the upper surface Ga of the glass plate G is brought into contact with the upper surface as shown by the two-dot chain line in FIGS. 5 and 6. It contacts the contact portion 20 of the prevention member 16a1. At this time, the roller main body 18 of the upper contact prevention member 16a1 rotates, and the elastic body serving as the contact portion 20 is elastically deformed by this contact. Further, as the elastically deformed contact portion 20 rubs against the top surface Ga of the glass plate G, a part of the rubber constituting the elastic body is transferred to the top surface Ga of the glass plate G. As a result, a mark (contact trace) is placed on the upper surface Ga of the glass plate G.
　上記のように、マーキング工程において、第一接触防止部材１６における上接触防止部材１６ａ１がガラス板Ｇの上面Ｇａに接触することで、ガラス板Ｇが上側の第一エアナイフ１４に接触することが防止される。 As described above, in the marking process, the upper contact prevention member 16a1 of the first contact prevention member 16 contacts the upper surface Ga of the glass plate G, thereby preventing the glass plate G from contacting the upper first air knife 14. be done.
　乾燥部３において乾燥工程Ｓ３（マーキング工程）が施されたガラス板Ｇは、第二搬送装置５ｂによって検査部４へと搬送される。 The glass plate G that has been subjected to the drying step S3 (marking step) in the drying section 3 is transported to the inspection section 4 by the second transport device 5b.
　検査工程Ｓ４では、乾燥工程Ｓ３が終了したガラス板Ｇに対して、欠陥の有無、搬送異常の有無についての検査を行う。検査工程Ｓ４において、検査装置２１は、検査結果に基づいて、ガラス板Ｇの製品としての良否を判定する。 In the inspection step S4, the glass plate G that has undergone the drying step S3 is inspected for the presence or absence of defects and the presence or absence of transport abnormalities. In the inspection step S4, the inspection device 21 determines the quality of the glass plate G as a product based on the inspection results.
　図７に示すように、検査工程Ｓ４において、ガラス板ＧにマークＭが付されていると、検査装置２１は、このマークＭを検出し、ガラス板Ｇの搬送に異常が発生していることを検出する。 As shown in FIG. 7, if a mark M is attached to the glass plate G in the inspection process S4, the inspection device 21 detects this mark M and indicates that an abnormality has occurred in the conveyance of the glass plate G. Detect.
　検査工程Ｓ４において、各接触防止部材１６，１７によって付されたマークＭが検出されると、第二搬送装置５ｂの検査が行われる。この検査では、第二搬送装置５ｂを構成する搬送ローラ２４の位置等が検査される、搬送ローラ２４に不備がある場合には、その不備を解消するための整備や位置調整が実施される。なお、検査工程Ｓ４においてマークＭが検出されたガラス板Ｇには、洗浄工程Ｓ２及び乾燥工程Ｓ３を再度行ってもよい。これにより、ガラス板ＧからマークＭを除去することができる。 In the inspection step S4, when the mark M attached by each contact prevention member 16, 17 is detected, the second conveyance device 5b is inspected. In this inspection, the position of the conveyance roller 24 constituting the second conveyance device 5b is inspected. If the conveyance roller 24 is defective, maintenance and position adjustment are performed to eliminate the defect. Note that the glass plate G on which the mark M was detected in the inspection step S4 may be subjected to the cleaning step S2 and the drying step S3 again. Thereby, the mark M can be removed from the glass plate G.
　以上説明した本実施形態に係るガラス製品（ガラス板Ｇ）の製造装置１及び製造方法によれば、第二搬送装置５ｂにおいてガラス板Ｇの搬送に異常が発生した場合に、マーキング工程（接触防止部材１６，１７）によって、ガラス板ＧにマークＭを付することができる。検査工程Ｓ４（検査装置２１）によってこのマークＭを検出することで、第二搬送装置５ｂに異常が発生していることを迅速に検出することが可能となる。 According to the manufacturing apparatus 1 and manufacturing method for glass products (glass plates G) according to the present embodiment described above, when an abnormality occurs in the conveyance of the glass plate G in the second conveyance device 5b, the marking process (contact prevention A mark M can be attached to the glass plate G by the members 16, 17). By detecting this mark M in the inspection step S4 (inspection device 21), it becomes possible to quickly detect that an abnormality has occurred in the second conveyance device 5b.
　なお、本発明は、上記実施形態の構成に限定されるものではなく、上記した作用効果に限定されるものでもない。本発明は、本発明の要旨を逸脱しない範囲で種々の変更が可能である。 Note that the present invention is not limited to the configuration of the embodiments described above, nor is it limited to the effects described above. The present invention can be modified in various ways without departing from the gist of the invention.
　上記の実施形態では、接触防止部材１６，１７を回転可能なローラによって構成した例を示したが、本発明はこの構成に限定されない。接触防止部材１６，１７は回転することなくガラス板Ｇに接触するように構成されてもよい。 In the above embodiment, an example was shown in which the contact prevention members 16 and 17 were configured by rotatable rollers, but the present invention is not limited to this configuration. The contact prevention members 16 and 17 may be configured to contact the glass plate G without rotating.
　上記の実施形態では、接触防止部材１６，１７の接触部２０に弾性体を用いた例を示したが、本発明はこの構成に限定されない。接触防止部材１６，１７の接触部２０は、弾性体に限定されず、ガラス板Ｇよりも低硬度の材料、例えばポリアミド樹脂、フェノール樹脂、ウレタン樹脂等の合成樹脂によって構成してもよい。すなわち、例えば、接触防止部材１６，１７のローラ本体１８を合成樹脂により構成し、ローラ本体１８の外周面をガラス板Ｇへの接触部２０として用いてもよい。 Although the above embodiment shows an example in which an elastic body is used for the contact portions 20 of the contact prevention members 16 and 17, the present invention is not limited to this configuration. The contact portions 20 of the contact prevention members 16 and 17 are not limited to an elastic body, and may be made of a material having a lower hardness than the glass plate G, for example, a synthetic resin such as polyamide resin, phenol resin, or urethane resin. That is, for example, the roller bodies 18 of the contact prevention members 16 and 17 may be made of synthetic resin, and the outer peripheral surface of the roller bodies 18 may be used as the contact portion 20 to the glass plate G.
　上記の実施形態では、搬送装置５ａ～５ｃによって搬送されるガラス板Ｇの上方及び下方に位置する接触防止部材１６，１７を例示したが、本発明はこの構成に限定されない。例えば、接触防止部材は、搬送されるガラス板Ｇの上方のみに配置されてもよい。 In the above embodiment, the contact prevention members 16 and 17 are positioned above and below the glass plate G transported by the transport devices 5a to 5c, but the present invention is not limited to this configuration. For example, the contact prevention member may be placed only above the glass plate G being transported.
　上記の実施形態では、第二搬送装置５ｂによるガラス板Ｇの搬送経路上に接触防止部材１６，１７を配置した製造装置１の例を示したが、本発明はこの構成に限定されない。接触防止部材は、第一搬送装置５ａ又は第三搬送装置５ｃによるガラス板Ｇの搬送経路上に配置されてもよい。この他、加工工程Ｓ１後に第一洗浄装置６までガラス板Ｇを搬送する際に、その搬送経路上に接触防止部材を配置してもよい。 In the above embodiment, an example of the manufacturing apparatus 1 was shown in which the contact prevention members 16 and 17 were arranged on the conveyance path of the glass plate G by the second conveyance device 5b, but the present invention is not limited to this configuration. The contact prevention member may be arranged on the conveyance path of the glass plate G by the first conveyance device 5a or the third conveyance device 5c. In addition, a contact prevention member may be placed on the conveyance path when the glass plate G is conveyed to the first cleaning device 6 after the processing step S1.
　上記の実施形態では、エアナイフ１４，１５の上流側及び下流側の両方に接触防止部材１６，１７を配置した製造装置１の例を示したが、本発明のこの構成に限定されない。製造装置１は、エアナイフ１４，１５の上流側のみ、又は下流側のみに接触防止部材１６，１７を配置したものであってもよい。エアナイフ１４，１５へのガラス製品の接触を確実に防止する観点では、エアナイフ１４，１５の上流側のみに接触防止部材１６，１７を配置することが好ましく、上流側及び下流側の両方に接触防止部材１６，１７を配置することがより好ましい。 Although the above embodiment shows an example of the manufacturing apparatus 1 in which the contact prevention members 16 and 17 are arranged on both the upstream and downstream sides of the air knives 14 and 15, the present invention is not limited to this configuration. The manufacturing apparatus 1 may have contact prevention members 16 and 17 disposed only on the upstream side or only on the downstream side of the air knives 14 and 15. From the viewpoint of reliably preventing glass products from coming into contact with the air knives 14 and 15, it is preferable to arrange contact prevention members 16 and 17 only on the upstream side of the air knives 14 and 15, and contact prevention members 16 and 17 are preferably provided on both the upstream and downstream sides. It is more preferable to arrange the members 16 and 17.
　１　　　　　　ガラス製品の製造装置
　５ａ　　　　　第一搬送装置
　５ｂ　　　　　第二搬送装置
　５ｃ　　　　　第三搬送装置
１３　　　　　　気体
１４　　　　　　第一エアナイフ
１５　　　　　　第二エアナイフ
１６　　　　　　第一接触防止部材
１７　　　　　　第二接触防止部材
１８　　　　　　接触防止部材のローラ本体
２０　　　　　　接触部（弾性体）
２１　　　　　　検査装置
　ＤＡ１　　　　エアナイフとガラス板との離間距離
　ＤＡ２　　　　エアナイフとガラス板との離間距離
　ＤＡ３　　　　エアナイフとガラス板との離間距離
　ＤＡ４　　　　エアナイフとガラス板との離間距離
　ＤＢ１　　　　接触防止部材とガラス板との離間距離
　ＤＢ２　　　　接触防止部材とガラス板との離間距離
　ＤＢ３　　　　接触防止部材とガラス板との離間距離
　ＤＢ４　　　　接触防止部材とガラス板との離間距離
　Ｇ　　　　　　ガラス板（ガラス製品）
　Ｇａ　　　　　ガラス板の上面（ガラス製品の表面）
　Ｇｂ　　　　　ガラス板の下面（ガラス製品の表面）
　Ｍ　　　　　　マーク
　Ｓ２　　　　　洗浄工程（製造関連処理工程）
　Ｓ３　　　　　乾燥工程（製造関連処理工程）
　Ｘ　　　　　　搬送方向 1 Glass product manufacturing device 5a First conveyance device 5b Second conveyance device 5c Third conveyance device 13 Gas 14 First air knife 15 Second air knife 16 First contact prevention member 17 Second contact prevention member 18 Roller body of contact prevention member 20 Contact part (elastic body)
21 Inspection device DA1 Separation distance between air knife and glass plate DA2 Separation distance between air knife and glass plate DA3 Separation distance between air knife and glass plate DA4 Separation distance between air knife and glass plate DB1 Separation distance between contact prevention member and glass plate DB2 Distance between contact prevention member and glass plate DB3 Distance between contact prevention member and glass plate DB4 Distance between contact prevention member and glass plate G Glass plate (glass product)
Ga Top surface of glass plate (surface of glass product)
Gb Bottom surface of glass plate (surface of glass product)
M Mark S2 Cleaning process (manufacturing related treatment process)
S3 Drying process (manufacturing related processing process)
X Conveying direction

Claims (12)

  1. 　ガラス製品を所定の搬送方向に沿って搬送する搬送装置と、前記ガラス製品に気体を吹き付けるエアナイフと、を備える、ガラス製品の製造装置であって、
    　前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記エアナイフに接触することを防止する接触防止部材を備え、
    　前記接触防止部材は、前記搬送方向において前記エアナイフの上流側及び下流側の少なくとも一方に配置されることを特徴とするガラス製品の製造装置。     A glass product manufacturing device comprising: a transport device that transports glass products along a predetermined transport direction; and an air knife that blows gas onto the glass products.
    comprising a contact prevention member that prevents the glass product from coming into contact with the air knife when the glass product is conveyed abnormally;
    The glass product manufacturing apparatus is characterized in that the contact prevention member is disposed on at least one of an upstream side and a downstream side of the air knife in the conveyance direction.
  2. 　前記接触防止部材は、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品の表面に搬送異常を意味するマークを付するマーカである請求項１に記載のガラス製品の製造装置。 2. The glass product manufacturing apparatus according to claim 1, wherein the contact prevention member is a marker that attaches a mark indicating abnormal transportation to the surface of the glass product when the glass product is transported abnormally.
  3. 　前記接触防止部材は、前記ガラス製品に接触可能な弾性体を含む請求項１又は２に記載のガラス製品の製造装置。 The apparatus for manufacturing a glass product according to claim 1 or 2, wherein the contact prevention member includes an elastic body that can come into contact with the glass product.
  4. 　前記ガラス製品が正常に搬送されている場合において、前記接触防止部材と前記ガラス製品との離間距離は、前記エアナイフと前記ガラス製品との離間距離よりも小さく設定されており、
    　前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記エアナイフに接触しないように、前記接触防止部材が前記ガラス製品に接触する、請求項１又は２に記載のガラス製品の製造装置。     When the glass product is being transported normally, the distance between the contact prevention member and the glass product is set smaller than the distance between the air knife and the glass product,
    The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member contacts the glass product to prevent the glass product from coming into contact with the air knife when the glass product is transported abnormally. .
  5. 　前記マークを検出する検査装置を備える請求項２に記載のガラス製品の製造装置。 The glass product manufacturing apparatus according to claim 2, further comprising an inspection device that detects the mark.
  6. 　前記接触防止部材は、ローラを含む請求項１又は２に記載のガラス製品の製造装置。 The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member includes a roller.
  7. 　前記接触防止部材は、前記搬送方向において、前記エアナイフの上流側及び下流側に配置される請求項１又は２に記載のガラス製品の製造装置。 The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member is arranged upstream and downstream of the air knife in the conveyance direction.
  8. 　前記接触防止部材は、前記搬送装置によって搬送される前記ガラス製品の上方に配置される請求項１又は２に記載のガラス製品の製造装置。 The glass product manufacturing apparatus according to claim 1 or 2, wherein the contact prevention member is arranged above the glass product transported by the transport device.
  9. 　ガラス製品を所定の搬送方向に沿って搬送する搬送装置を備える、ガラス製品の製造装置であって、
    　前記搬送装置によって正常に搬送される前記ガラス製品の表面に対して離間して配置される製造関連処理部と、前記ガラス製品が異常な搬送をされた場合に、前記ガラス製品が前記製造関連処理部に接触しないように、前記ガラス製品の前記表面に接触する接触防止部材と、を備え、
    　前記接触防止部材は、前記搬送方向において前記製造関連処理部の上流側及び下流側の少なくとも一方に配置されることを特徴とするガラス製品の製造装置。     A glass product manufacturing device comprising a conveyance device that conveys glass products along a predetermined conveyance direction,
    a manufacturing-related processing unit disposed apart from the surface of the glass product that is normally transported by the transport device; and a manufacturing-related processing unit that processes the glass product when the glass product is transported abnormally. a contact prevention member that contacts the surface of the glass product so as not to contact the surface of the glass product,
    A glass product manufacturing apparatus, wherein the contact prevention member is disposed on at least one of an upstream side and a downstream side of the manufacturing-related processing section in the conveyance direction.
  10. 　ガラス製品を所定の搬送方向に沿って搬送しつつ、前記ガラス製品を洗浄装置によって洗浄する洗浄工程と、前記洗浄工程後に、前記ガラス製品を前記搬送方向に沿って搬送しつつ、エアナイフによって前記ガラス製品に気体を吹き付ける乾燥工程と、を備える、ガラス製品の製造方法であって、
    　前記ガラス製品が異常な搬送をされた場合に、前記搬送方向において前記エアナイフの上流側及び下流側の少なくとも一方に配置される接触防止部材を前記ガラス製品に接触させることにより、前記ガラス製品の前記エアナイフへの接触を防止することを特徴とするガラス製品の製造方法。     a cleaning step of cleaning the glass product with a cleaning device while transporting the glass product along a predetermined transport direction; and after the cleaning step, washing the glass product with an air knife while transporting the glass product along the transport direction; A method for manufacturing a glass product, comprising a drying step of blowing gas onto the product,
    When the glass product is transported abnormally, a contact prevention member disposed on at least one of the upstream side and the downstream side of the air knife in the transport direction is brought into contact with the glass product. A method for manufacturing a glass product characterized by preventing contact with an air knife.
  11. 　ガラス製品を所定の搬送方向に沿って搬送しつつ、製造関連処理部によって、前記ガラス製品に対して製造関連処理を施す製造関連処理工程を備える、ガラス製品の製造方法であって、
    　前記ガラス製品が異常な搬送をされた場合に、前記搬送方向において前記製造関連処理部の上流側及び下流側の少なくとも一方に配置される接触防止部材を前記ガラス製品に接触させることにより、前記ガラス製品の前記製造関連処理部への接触を防止することを特徴とするガラス製品の製造方法。     A method for manufacturing a glass product, comprising a manufacturing-related processing step in which a manufacturing-related processing section performs manufacturing-related processing on the glass product while transporting the glass product along a predetermined transport direction, the method comprising:
    When the glass product is transported abnormally, a contact prevention member disposed on at least one of the upstream side and the downstream side of the manufacturing-related processing section in the transport direction is brought into contact with the glass product. A method for manufacturing a glass product, characterized by preventing the product from coming into contact with the manufacturing-related processing section.
  12. 　ガラス製品を所定の搬送方向に沿って搬送する搬送装置と、前記ガラス製品に気体を吹き付けるエアナイフと、を備える、ガラス製品の製造装置であって、
    　前記搬送方向において前記エアナイフの上流側に配置される接触防止部材を備え、
    　前記ガラス製品が正常に搬送されている場合において、前記接触防止部材と前記ガラス製品との離間距離は、前記エアナイフと前記ガラス製品との離間距離よりも小さく設定されることを特徴とするガラス製品の製造装置。     A glass product manufacturing device comprising: a transport device that transports glass products along a predetermined transport direction; and an air knife that blows gas onto the glass products.
    comprising a contact prevention member disposed upstream of the air knife in the conveyance direction,
    A glass product characterized in that, when the glass product is being transported normally, a distance between the contact prevention member and the glass product is set smaller than a distance between the air knife and the glass product. manufacturing equipment.
PCT/JP2023/013554 2022-04-12 2023-03-31 Device and method for manufacturing glass article WO2023199760A1 (en)

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WO2003050860A1 (en) * 2001-12-13 2003-06-19 Sumitomo Precision Products Co., Ltd Substrate processing device
JP2007252984A (en) * 2006-03-20 2007-10-04 Hitachi High-Technologies Corp Substrate drying apparatus, substrate drying method, and substrate manufacturing method
JP2016026968A (en) * 2014-06-30 2016-02-18 ＡｖａｎＳｔｒａｔｅ株式会社 Glass sheet manufacturing method and glass sheet manufacturing device
WO2019097943A1 (en) * 2017-11-16 2019-05-23 日本電気硝子株式会社 Method for manufacturing glass plate

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2003077883A (en) * 2001-09-05 2003-03-14 Tokyo Electron Ltd Substrate-drying method and substrate-drying equipment
WO2003050860A1 (en) * 2001-12-13 2003-06-19 Sumitomo Precision Products Co., Ltd Substrate processing device
JP2007252984A (en) * 2006-03-20 2007-10-04 Hitachi High-Technologies Corp Substrate drying apparatus, substrate drying method, and substrate manufacturing method
JP2016026968A (en) * 2014-06-30 2016-02-18 ＡｖａｎＳｔｒａｔｅ株式会社 Glass sheet manufacturing method and glass sheet manufacturing device
WO2019097943A1 (en) * 2017-11-16 2019-05-23 日本電気硝子株式会社 Method for manufacturing glass plate

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