WO2023176451A1 - Ensemble outil, dispositif de traitement et procédé de production de plaque de verre - Google Patents

Ensemble outil, dispositif de traitement et procédé de production de plaque de verre Download PDF

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Publication number
WO2023176451A1
WO2023176451A1 PCT/JP2023/007561 JP2023007561W WO2023176451A1 WO 2023176451 A1 WO2023176451 A1 WO 2023176451A1 JP 2023007561 W JP2023007561 W JP 2023007561W WO 2023176451 A1 WO2023176451 A1 WO 2023176451A1
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WO
WIPO (PCT)
Prior art keywords
processing
end surface
tool
processing tool
tool assembly
Prior art date
Application number
PCT/JP2023/007561
Other languages
English (en)
Japanese (ja)
Inventor
大生 松永
愛信 星野
翔 北川
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
Publication of WO2023176451A1 publication Critical patent/WO2023176451A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means

Definitions

  • the present invention relates to a tool assembly for processing a glass plate, a processing apparatus, and a method for manufacturing a glass plate.
  • Patent Document 1 discloses an example of a processing device that includes a rotatable processing tool (grindstone), a holder that holds the processing tool, and a spindle as a rotating shaft that rotates the processing tool. has been done.
  • the holder of the processing device has a flange portion that supports one end of the processing tool in the axial direction, and a hole portion into which the spindle fits.
  • the holder is configured to rotate together with the processing tool by being driven by the spindle while supporting the processing tool with the flange portion.
  • a hole may be formed at one end of the processing tool or flange to adjust the balance during rotation.
  • the processing tool is attached to the holder so that the hole in the processing tool faces the flange, and the hole in the flange faces the processing tool.
  • the hole in the processing tool is closed by the flange portion, and the hole in the flange portion is closed by the processing tool.
  • the hole for balance adjustment is blocked by the flange of the processing tool or holder, but due to the influence of vibrations during processing, the flange and one end of the processing tool
  • liquid such as grinding fluid may enter the hole and accumulate in the hole. If liquid accumulates in the hole, the rotational balance of the processing device will be disrupted, vibration will increase, and there is a risk that the processing accuracy of the glass plate will deteriorate.
  • the present invention has been made in view of the above circumstances, and its technical problem is to prevent deterioration of the rotational balance of a processing device.
  • the present invention is intended to solve the above problems, and provides a tool assembly including a rotatable processing tool for processing the end surface of a glass plate, and a rotatable holder for holding the processing tool. It is characterized by comprising a space provided in the holder and/or the processing tool for adjusting rotational balance, and a seal member for preventing liquid from entering the space.
  • the space portion may be provided inside the processing device. According to this configuration, it is possible to efficiently balance the rotation of the processing device. Even in such a case, the sealing member can prevent liquid from accumulating in the space.
  • the processing tool has a first end surface and a second end surface located on the opposite side of the first end surface, and the holder includes a support part that supports the first end surface.
  • the space portion may be formed in the first end surface.
  • the processing tool has a through hole formed from the first end surface to the second end surface, and the seal member is arranged on the second end surface so as to close the through hole. may be provided.
  • the seal member prevents liquid from entering the through hole, thereby preventing liquid from entering the space through the through hole.
  • the sealing member may include a lid that closes the through hole, and a seal that seals between the lid and the second end surface of the processing tool.
  • the holder may have a cylindrical part provided in the center of the support part, and the lid may have a connecting part connected to the cylindrical part.
  • the seal member can be fixed to the holder via the connecting portion.
  • the lid body may be made of resin. According to this configuration, it is possible to reduce the weight of the processing device.
  • a processing device is intended to solve the above problems, and is characterized by comprising the above tool assembly and a rotating shaft that rotates the tool assembly. According to this configuration, by preventing liquid from accumulating in the space by the sealing member, deterioration of the rotational balance of the processing device can be reliably prevented.
  • a method for manufacturing a glass plate according to the present invention is intended to solve the above-mentioned problems, and is characterized by comprising a step of processing an end face of a glass plate using the processing apparatus described above. According to this configuration, it is possible to prevent deterioration of the rotational balance of the processing device and to manufacture a glass plate with high processing accuracy.
  • FIG. 3 is a cross-sectional view of the processing tool.
  • FIG. 3 is a cross-sectional view of the holder. It is a side view of a sealing member. It is a top view of a sealing member. It is a perspective view showing a manufacturing method of a glass plate. It is a sectional view of a processing device concerning a second embodiment. It is a top view of a sealing member.
  • FIG. 1 to 6 show a first embodiment of a tool assembly, a processing device, and a method for manufacturing a glass plate according to the present invention.
  • the processing device 1 includes a rotatable processing tool 2, a rotatable holder 3 that holds the processing tool 2, and a rotating shaft that rotates the processing tool 2 via the holder 3. It includes a spindle 4, a first fixture 5a that fixes the processing tool 2 to the holder 3, a second fixture 5b that fixes the holder 3 to the spindle 4, and a seal member 6 that is attached to the processing tool 2. .
  • the holder 3 holding the processing tool 2 will also be referred to as a tool assembly.
  • the processing tool 2 includes a processing section 7 (grindstone section) for processing the glass plate G, and a main body section 8 that supports the processing section 7.
  • an electrodeposited grindstone formed by hardening diamond abrasive grains with a metal electrodeposition bond, or a metal bonded grindstone formed by hardening abrasive grains with a metallic binder is suitably used.
  • the main body portion 8 is composed of, for example, a cylindrical member made of metal.
  • a processed portion 7 is integrally formed on the outer peripheral surface of the main body portion 8 .
  • the main body part 8 has a first end surface 8a formed at one end in the direction of the cylindrical core, a second end surface 8b located on the opposite side of the first end surface 8a in the direction of the cylindrical core, and a part of the holder 3 inserted therethrough. It has a first through-hole 8c, and a plurality of second through-holes 8d into which the first fixture 5a is inserted.
  • the main body portion 8 is supported by the holder 3 such that the first end surface 8a faces downward and the second end surface 8b faces upward.
  • the first end surface 8a of the main body portion 8 has a first recess 9 in its center.
  • the first recess 9 has a bottom surface 9a and a side wall surface 9b.
  • the bottom surface 9a has a circular shape in plan view.
  • a first through hole 8c is located in the bottom surface 9a.
  • the bottom surface 9a of the first recess 9 has a space 9c at a position radially away from the center.
  • the space 9c is formed by a hole (for example, a circular hole) formed by a tool such as a drill.
  • the present invention is not limited to this, and the space portion 9c may be configured by forming a recessed portion in the bottom surface 9a.
  • one space 9c formed in the bottom surface 9a is illustrated, but a plurality of spaces 9c may be formed in the bottom surface 9a.
  • the side wall surface 9b of the first recess 9 is circular in plan view so as to surround the peripheral edge of the bottom surface 9a.
  • the second end surface 8b of the main body portion 8 has a second recess 10 at its center.
  • the second recess 10 has a bottom surface 10a that is circular in plan view and a side wall surface 10b that is circular in plan view and surrounds the bottom surface 10a.
  • the first through hole 8c is a hole that passes through the center of the main body 8 from the first end surface 8a to the second end surface 8b. Specifically, the first through hole 8c penetrates from the bottom surface 9a of the first recess 9 of the first end surface 8a to the bottom surface 10a of the second recess 10 of the second end surface 8b.
  • the second through hole 8d is formed at a position radially away from the center of the main body portion 8. Each second through hole 8d has a holding part 11 that holds a part of the first fixture 5a.
  • the holder 3 has a cylindrical portion 12 and a flange portion 13 formed at one end of the cylindrical portion 12.
  • the cylindrical portion 12 has a cylindrical shape, for example, and is integrally formed at the center of the flange portion 13.
  • the cylindrical portion 12 has an internal space that can accommodate the second fixture 5b.
  • a female thread 12a is formed on the inner surface of the cylindrical portion 12, with which a portion of the seal member 6 engages (see FIG. 3).
  • the outer diameter of the cylindrical portion 12 is smaller than the inner diameter of the first through hole 8c of the processing tool 2.
  • the cylindrical portion 12 is inserted into the first through hole 8c of the processing tool 2 so as to be concentric with the first through hole 8c. With this configuration, a gap S is formed between the outer surface of the cylindrical portion 12 and the inner surface of the first through hole 8c (see FIG. 1).
  • the flange portion 13 functions as a support portion that supports the processing tool 2.
  • the flange portion 13 is configured in a disk shape, but is not limited to this shape.
  • the flange portion 13 has a first surface 13a formed at the end in the thickness direction, a second surface 13b located on the opposite side to the first surface 13a, and a surface formed between the first surface 13a and the second surface 13a. and an end surface 13c that connects the surface 13b.
  • first surface 13a faces upward, and the second surface 13b faces downward.
  • the first surface 13a is in contact with the bottom surface 9a of the first recess 9 in the processing tool 2.
  • a cylindrical portion 12 is formed in the center of the first surface 13a.
  • the flange portion 13 includes a shaft insertion hole 14 into which the spindle 4 is inserted, a support surface 15 that contacts the first end surface 8a of the processing tool 2, and a fixing hole 16 into which a part of the first fixture 5a is fitted. Be prepared.
  • the shaft insertion hole 14 functions as a housing portion that accommodates a portion of the spindle 4 therein.
  • the shaft insertion hole 14 is formed at the center of the flange portion 13.
  • the shaft insertion hole 14 communicates with the inside of the cylindrical portion 12 .
  • the shaft insertion hole 14 has a tapered inner surface (contact surface) 14 a that contacts a portion of the spindle 4 .
  • the inner surface 14a is configured such that its inner diameter decreases from the second surface 13b side of the flange portion 13 toward the first surface 13a side.
  • the inner diameter of the small diameter end of the shaft insertion hole 14 is smaller than the inner diameter of the cylindrical portion 12. With this configuration, a holding part 21 that holds a part of the second fixture 5b is formed between the shaft insertion hole 14 and the cylindrical part 12.
  • the support surface 15 is formed on the first surface 13a of the flange portion 13.
  • the support surface 15 supports the main body 8 by contacting the bottom surface 9a of the first recess 9 in the main body 8 of the processing tool 2.
  • the space 9c provided in the bottom surface 9a of the first recess 9 is covered with the support surface 15. Therefore, the tool assembly has a space 9c inside thereof.
  • the fixing hole 16 is formed in the first surface 13a of the flange portion 13 at a position radially away from the center.
  • the fixing hole 16 is a screw hole formed from the first surface 13a to the middle part of the flange portion 13 in the thickness direction, and is formed at a position corresponding to the holding portion 11 of the processing tool 2.
  • the spindle 4 has a shaft portion 4a configured in a tapered shape.
  • the shaft portion 4a has a tapered surface whose outer diameter decreases as it moves from the proximal end to the distal end.
  • a fixing hole 17 into which a part of the second fixture 5b fits is formed in the end surface of the shaft portion 4a.
  • the fixing hole 17 is constituted by, for example, a screw hole.
  • the spindle 4 can rotate together with the processing tool 2 and the holder 3 as power is transmitted from a drive device (not shown) such as a motor.
  • the first fixture 5a is composed of a bolt (for example, a hexagon socket head bolt). As shown in FIG. 1, the shaft portion 18a of the first fixture 5a is fitted into the fixing hole 16 of the holder 3. The head 18b of the first fixture 5a is supported by the holding part 11 of the second through hole 8d.
  • a bolt for example, a hexagon socket head bolt
  • the second fixture 5b includes a bolt 19 (for example, a hexagon socket head bolt) and a holding plate 20.
  • the shaft portion 19a of the bolt 19 passes through the holding plate 20 and is fitted into the fixing hole 17 of the spindle 4.
  • the head 19b of the bolt 19 is supported by a holding plate 20.
  • the holding plate 20 is configured in a disk shape, and has a hole 20a in the center thereof, into which the shaft portion 19a of the bolt 19 is inserted. As shown in FIG. 1, the holding plate 20 is supported by a holding part 21 formed between the cylindrical part 12 of the holder 3 and the shaft insertion hole 14.
  • the sealing member 6 allows liquid such as grinding liquid or polishing liquid to pass through the gap S between the first through hole 8c of the processing tool 2 and the cylindrical part 12 of the holder 3 and the first surface 13a of the flange part 13. This is to prevent the liquid from entering the space 9c.
  • the seal member 6 is fixed to the second end surface 8b of the processing tool 2 so as to close the first through hole 8c of the processing tool 2.
  • the seal member 6 includes a lid body 22 and a seal body 23 attached to the lid body 22.
  • the lid 22 is made of resin, but the material of the lid 22 is not limited to this embodiment.
  • the lid body 22 includes a lid portion 24 that closes the first through hole 8c and the second recess 10 of the processing tool 2, and a connecting portion 25 that is connected to the cylindrical portion 12 of the holder 3.
  • the lid portion 24 is configured in a disc shape, but is not limited to this shape.
  • the lid part 24 has a first surface 24a formed at one end in the thickness direction, a second surface 24b located on the opposite side of the first surface 24a, and a first surface 24a and a second surface. 24b.
  • the first surface 24a of the lid 24 has an operating portion 26 for operating the lid 22.
  • the operating portion 26 has a circular recess 26a formed at the center of the first surface 24a, and a protrusion 26b formed at the center of the recess 26a.
  • the second surface 24b of the lid portion 24 is configured integrally with the connecting portion 25.
  • the second surface 24b is arranged to face downward, that is, to face the bottom surface 10a of the second recess 10 of the processing tool 2.
  • the end surface 24c of the lid portion 24 has a groove portion 27 as a holding portion that holds the seal body 23. As shown in FIG. 5, the groove portion 27 is formed in an annular shape along the circumferential direction of the end surface 24c.
  • the connecting portion 25 includes a screw shaft 25a configured concentrically with the lid portion 24.
  • the screw shaft 25a is fitted into a female thread 12a formed in the cylindrical portion 12 of the holder 3.
  • the lid body 22 is detachably attached to the holder 3.
  • the connecting part 25 of the lid 22 is arranged concentrically with the tip of the cylindrical part 12 of the holder 3, and the protrusion of the operating part 26
  • the screw shaft 25a is screwed into the female thread 12a of the cylindrical portion 12 by the operator grasping and rotating the screw shaft 26b.
  • the screw shaft 25a is extracted from the cylindrical portion 12 by rotating the protrusion 26b of the operating portion 26.
  • the seal body 23 is composed of, for example, an annular elastic member (O-ring), but the configuration of the seal body 23 is not limited to this embodiment.
  • the seal body 23 is fitted into the groove 27 of the lid 24 so that a portion thereof protrudes from the groove 27.
  • the sealing body 23 is in close contact with the side wall surface 10b of the second recess 10 when the lid 24 of the lid 22 is inserted into the second recess 10 on the second end surface 8b of the processing tool 2. are doing.
  • the seal body 23 is sandwiched between the side wall surface 10b of the second end surface 8b of the processing tool 2 and the end surface 24c of the lid section 24, thereby sealing between the end surface 24c of the lid section 24 and the side wall surface 10b of the processing tool 2. are doing.
  • This method includes a processing step of processing an end face of a glass plate G formed into a rectangular shape, for example.
  • the processing steps include a first processing step in which the first processing device 1A and the first supply device 28 perform a grinding process on the glass plate G, and a second processing device 1B and the second supply device 29 perform a polishing process on the glass plate G. and a second processing step.
  • the first processing device 1A and the second processing device 1B have the same configuration as the processing device 1 described above. The only difference between the first processing device 1A and the second processing device 1B is the configuration (material, etc.) of the processing section 7.
  • the end surface of the glass plate G is processed by relatively moving the glass plate G, each processing device 1A, 1B, and each supply device 28, 29.
  • the glass plate G is processed while being transported along the transport direction X by a transport device (not shown) without moving each processing device 1A, 1B and each supply device 28, 29.
  • the present invention is not limited to this example.
  • the glass plate G may be processed by moving each processing device 1A, 1B and each supply device 28, 29 while supporting the glass plate G by a surface plate without moving it.
  • the end face of the glass plate G is ground by the processing tool 2 of the first processing device 1A rotating around the rotation axis CR1 while the grinding fluid L1 is supplied to the processing tool 2 by the first supply device 28.
  • the first supply device 28 has a nozzle 28a arranged near the first processing device 1A.
  • water is used as the grinding liquid L1 spouted from the nozzle 28a.
  • the second processing device 1B is arranged downstream of the first processing device 1A in the transport direction X of the glass plate G.
  • the end surface of the glass plate G is polished by the processing tool 2 of the second processing device 1B that rotates around the rotation axis CR2 while supplying the polishing liquid L2 to the processing tool 2 by the second supply device 29.
  • the second supply device 29 has a nozzle 29a arranged near the second processing device 1B. For example, water is used as the polishing liquid L2 spouted from the nozzle 29a.
  • droplets of liquid such as grinding fluid and polishing fluid may reach the upper part of the processing tool 2.
  • the sealing member 6 since the upper part of the processing tool 2 is sealed by the sealing member 6, it is possible to prevent liquid from entering the space 9c through the second recess 10 and the first through hole 8c of the processing tool 2. Thereby, it is possible to prevent liquid from accumulating in the space 9c, and it is possible to prevent the rotational balance of the processing tool 2 from deteriorating.
  • the present inventors conducted the following studies. As described above, the flange portion 13 of the holder 3 is placed in a state where the first surface 13a (support surface 15) is in surface contact with the first end surface 8a (bottom surface 9a of the first recess 9) of the processing tool 2. 2 will be supported. In this state, the first surface 13a of the flange portion 13 closes the space 9c formed in the first end surface 8a of the processing tool 2. In such a state, it is difficult for liquid to enter between the first surface 13a of the flange portion 13 and the first end surface 8a of the processing tool 2, but nevertheless, the sealing member 6 is not provided. In the processing apparatus 1, liquid sometimes accumulated in the space 9c.
  • FIG. 7 and 8 show a second embodiment of the present invention.
  • the processing device 1 according to this embodiment differs from the first embodiment in the configuration of the seal member 6.
  • the seal member 6 covers the entire second recess 10 on the second end surface 8b of the processing tool 2 with the lid portion 24 of the lid body 22.
  • FIG. 7 shows that the seal member 6 covers the entire second recess 10 on the second end surface 8b of the processing tool 2 with the lid portion 24 of the lid body 22.
  • the lid 22 of the seal member 6 has a groove 27 on the second surface 24b of the lid 24 for holding the seal 23.
  • the groove portion 27 is configured in an annular shape so as to surround the screw shaft 25a of the connecting portion 25.
  • An O-ring serving as the seal body 23 is fitted into the groove portion 27 .
  • the diameter of the groove 27 is larger than the diameter of the second recess 10.
  • the operation part 26 formed on the first surface 24a of the lid part 24 of the lid body 22 does not have the protrusion part 26b illustrated in the first embodiment, but only has a recessed part 26a.
  • the recess 26a has a polygonal (eg, hexagonal) side wall surface.
  • the connecting portion 25 of the lid 22 can be attached to and removed from the cylindrical portion 12 of the holder 3 by rotating the lid 22 with a tool that engages with the recess 26a of the operating portion 26.
  • the configuration of the seal member 6 as described above can reliably prevent liquids such as grinding liquid and polishing liquid from entering the second recess 10 in the second end surface 8b of the processing tool 2.
  • the present invention is not limited to this configuration.
  • the processing device 1 does not need to have the second recess 10 on the second end surface 8b of the processing tool 2.
  • the second end surface 8b of the processing tool 2 is configured as a single surface, and the sealing member 6 is attached to the processing tool 2 so as to close the first through hole 8c located at the center of the second end surface 8b. It can be attached to.
  • the seal member 6 including the seal body 23 attached to the lid body 22 was illustrated, but the present invention is not limited to this configuration.
  • the seal member 6 may include a lid body 22 and a seal body attached to the second end surface 8b of the processing tool 2.
  • a holding portion such as a groove for holding the seal body may be provided on the second end surface 8b of the processing tool 2.
  • the space 9c is provided in the processing tool 2, but it may be provided in the holder 3. In that case, the space 9c may be provided only in the holder 3, or may be provided in both the holder 3 and the processing tool 2.
  • Processing device Processing tool 3 Holder 6 Seal member 8a First end surface 8b Second end surface 8c First through hole 9c Space portion 12 Cylindrical portion 13 Flange portion (support portion) 22 Lid body 23 Seal body 25 Connection part G Glass plate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

L'invention concerne un ensemble outil qui comprend : un outil de traitement 2 rotatif pour traiter les surfaces d'extrémité d'une plaque de verre G ; et un support rotatif 3 qui maintient l'outil de traitement 2. L'ensemble outil comprend en outre : une partie cavité 9c qui est utilisée pour effectuer un réglage d'équilibre de rotation et sert au support 3 et/ou à l'outil de traitement 2 ; et un élément d'étanchéité 6 qui empêche les liquides de pénétrer dans la partie cavité 9c.
PCT/JP2023/007561 2022-03-15 2023-03-01 Ensemble outil, dispositif de traitement et procédé de production de plaque de verre WO2023176451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-040320 2022-03-15
JP2022040320A JP2023135223A (ja) 2022-03-15 2022-03-15 工具アセンブリ、加工装置及びガラス板の製造方法

Publications (1)

Publication Number Publication Date
WO2023176451A1 true WO2023176451A1 (fr) 2023-09-21

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PCT/JP2023/007561 WO2023176451A1 (fr) 2022-03-15 2023-03-01 Ensemble outil, dispositif de traitement et procédé de production de plaque de verre

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Country Link
JP (1) JP2023135223A (fr)
TW (1) TW202400357A (fr)
WO (1) WO2023176451A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225154U (fr) * 1985-07-29 1987-02-16
WO2020039940A1 (fr) * 2018-08-22 2020-02-27 日本電気硝子株式会社 Procédé de fabrication de feuille de verre, et outil pour dispositif de meule à aiguiser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225154U (fr) * 1985-07-29 1987-02-16
WO2020039940A1 (fr) * 2018-08-22 2020-02-27 日本電気硝子株式会社 Procédé de fabrication de feuille de verre, et outil pour dispositif de meule à aiguiser

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JP2023135223A (ja) 2023-09-28

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