WO2002085804A1 - Procede de decoupe de verre et dispositif correspondant - Google Patents
Procede de decoupe de verre et dispositif correspondant Download PDFInfo
- Publication number
- WO2002085804A1 WO2002085804A1 PCT/JP2001/010224 JP0110224W WO02085804A1 WO 2002085804 A1 WO2002085804 A1 WO 2002085804A1 JP 0110224 W JP0110224 W JP 0110224W WO 02085804 A1 WO02085804 A1 WO 02085804A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass rod
- support
- glass
- dividing
- rod
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/045—Tools or apparatus specially adapted for re-forming tubes or rods in general, e.g. glass lathes, chucks
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
- C03B33/085—Tubes, rods or hollow products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0126—Means for supporting, rotating, translating the rod, tube or preform
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Definitions
- the present invention relates to a method for cutting a glass rod and a cutting apparatus used for the method, and particularly to a long glass rod used as a starting material for manufacturing a glass base material, for example, a glass base material for an optical fiber.
- the present invention relates to a method and a device for supporting a glass rod when a workpiece is cut and attached to a lathe. Background art
- a porous glass is produced by a VAD method (gas phase shafting method), and the porous glass is dehydrated and sintered to form a transparent glass.
- VAD method gas phase shafting method
- the VAD method is a method in which a glass material and a flame gas are injected from a burner, and glass particles are deposited axially on a rod such as a rotating quartz glass.
- the porous glass formed by depositing the above-mentioned glass particles is dehydrated and sintered to form a transparent vitreous glass. Fine particles are deposited to form a porous glass, and a glass base material having a predetermined outer diameter is obtained.
- quartz glass or transparent drawn glass is used as a glass rod as a starting material used for depositing glass fine particles.
- the glass rod of this starting material has a different length depending on the size of the glass base material to be manufactured, and if there is an abnormal part in the glass rod, the abnormal part is removed. Need.
- a long glass rod is cut into a predetermined length using a lathe in order to obtain a glass rod having a length corresponding to the glass base material to be manufactured.
- FIG. 5 shows a conventional cutting device for cutting a glass rod into a predetermined length.
- 1 is a glass rod
- 2 is a lathe
- 3 is a base
- 4 is a fixed support
- 5 is a movable support
- 6 is a chuck
- 7 is a glass burner.
- this device as shown in Fig. 5, one end of the glass rod 1 is gripped by the chuck 6 of the fixed support portion 4, and the other end is gripped by the chuck 6 of the movable support portion 5. It is configured to
- the movable support 5 is provided on the base 3 so that the position can be adjusted, and can correspond to the length of the glass rod 1.
- the chuck 6 is rotatable with respect to the support portions 4 and 5, and holds the glass rod 1 rotatably.
- the glass rod 1 whose both ends are gripped by the chuck 6 is rotated by a rotary drive means (not shown), and a predetermined position to be divided is uniformly heated and melted by the glass parner 7.
- the glass rod 1 is divided into two parts by moving the movable support part 5 so as to tear off the parts softened by heating and melting.
- the glass rod 1 divided into two is cantilevered by the chuck 6, but the stress concentrates on the gripping portion of the glass rod 1. If the glass rod 1 is short, the stress is small and can be gripped without any problem even with cantilever gripping. However, as the length of the glass rod 1 increases, the weight increases, the stress in cantilever gripping increases, and the gripping portion of the glass rod 1 may crack and break. It will be higher. Disclosure of the invention
- the present invention has been made in view of the above-described circumstances, and when a glass head for manufacturing a glass base material is cut into a predetermined length, a crack or break is generated at a root portion where the glass head is gripped. It is an object of the present invention to provide a method for supporting a glass rod so that it does not occur, and a dividing device used in the method.
- the glass rod cutting method of the present invention is characterized in that, when gripping both ends of the glass rod and cutting the glass rod to a predetermined length, the glass rod is cut at a predetermined length by a support tool arranged so as to be position-adjustable. It is characterized in that it is divided while supporting the position between them from below.
- the glass rod cutting device of the present invention grips both ends of the glass rod and cuts the glass rod into a predetermined length, and supports an intermediate position between both ends of the glass rod from below.
- a holding means is provided, and a holding means for holding both ends of the glass rod, and a position adjustable in a longitudinal direction of the glass rod, and holds the glass rod at at least two points. It is characterized by comprising a support and a dividing means for dividing the glass rod while heating it.
- FIG. 1 is a diagram illustrating an embodiment of the present invention.
- FIG. 2 is a diagram showing a chuck portion for gripping an end of a glass rod.
- FIG. 3 is a diagram showing a support according to the present invention.
- FIG. 4 is a diagram showing another embodiment of the present invention.
- FIG. 5 is a diagram illustrating a conventional configuration.
- 11 is a glass rod
- 12 is a lathe
- 13 is a base
- 14 is a fixed support
- 15 is a movable support
- 16 is a chuck
- 17 is a glass spanner
- Reference numeral 18 denotes a support.
- FIG. 1 is a schematic diagram illustrating a method of cutting a glass rod according to the present invention
- FIG. 2 is a diagram illustrating a chuck portion of the glass rod
- FIG. 3 is a diagram illustrating a Y-shaped support.
- 11 is a glass rod
- 12 is a lathe
- 13 is a base
- 14 is a fixed support
- 15 is a movable support
- 16 is a chuck
- 17 is a glass spanner
- 1 is a glass spanner
- 1 8 indicates a support.
- the lathe device 12 has a fixed support portion 14 for supporting the glass rod 11, a movable support portion 15, and a support member 18 on a base 13, and a glass rod 11 1 And a glass burner 17 for dividing the glass.
- the fixed support portion 14 may be configured to be movable similarly to the movable support portion 15.
- the movable support section 15 and the support tool 18 are arranged so that the position can be adjusted in the longitudinal direction of the base using a guide rail or the like.
- the fixed support portion 14 and the movable support portion 15 are provided with a chuck 16 for holding the glass rod 11.
- a chuck 16 for holding the glass rod 11.
- the glass burner 17 an oxy-hydrogen flame burner is used, and a structure having 5 to 7 burners for heating about 1/2 of the circumferential direction of the glass rod is used.
- the glass rod 11 has, for example, a length of 3 m and a diameter of 0.03 m, and is formed of quartz or glass to which a dopant is added at the center.
- the glass rod 11 is cut into a length of, for example, about 2 m, and glass particles are deposited on the outer peripheral surface in the production of the glass base material to form a large multi-piece. Used as a base material for forming a porous glass base material.
- the glass rod 11 can also be used as a seed rod for depositing glass fine particles in the axial direction by the VAD method or as a stick for drawing a transparent glass.
- the glass rod 11 is mounted on a lathe 12 in order to cut the glass rod 11 into a predetermined length according to the size of the glass base material to be manufactured.
- a lathe 12 For mounting on the lathe 12, one end of the glass rod 11 is gripped by the chuck 16 of the fixed support part 14, and the other end is chucked by the movable support part 15. Hold with 16 and perform.
- the support 18 is positioned on the glass rod 1 la that is cut off in the vicinity of the cutting position, and the height is adjusted so as to support the glass rod.
- the chuck 16 is configured such that, as shown in FIG. 2, the end of the glass rod 11 is gripped by at least three adjusting shafts 16a in a ring. Is done.
- the chuck 16 is rotatable by a rotation driving means (not shown), and the glass rod 11 is rotated so that the entire circumference of the divided portion is made uniform by the glass parner 17. Heat and melt. Thereafter, the movable rod 15 is moved to break the portion softened by heating and melting, and the glass rod 11 is divided into two parts.
- the divided glass rods 1 la and 1 lb are in a state of being cantilevered at one end.
- the glass rod 11b divided into short lengths has no load problem with cantilever holding, but the glass rod 11a on the long side has a glass rod at the gripping part of the chuck 16.
- a large bending moment is suddenly added at the root of 11a. For this reason, there is a risk that the glass rod 1 la may be cracked or broken at the gripping portion.
- the support member 18 is arranged near the dividing portion of the long glass rod 11a, the divided glass rod 11a is supported at two points. It is possible to avoid stress concentration on the support and the gripping portion, and as a result, it is possible to prevent cracks or breakage.
- the support tool 18 is attached in the longitudinal direction of the base 13 of the lathe device 12 such that the disposition position can be adjusted by sliding, for example.
- the support tool 18 is provided with a Y-shaped support 20 on a base 19 and a rotatable sleeve 22 made of carbon or the like arranged on a bifurcated leg 21 above the support. Is done.
- the column 20 is formed, for example, in a stretchable shape so that the height position can be adjusted, and the position of the pedestal 19 in the lateral direction is attached so as to be adjustable.
- the position of the column 20 of the support tool 18 can be adjusted in three directions of the lathe device 12 in the longitudinal direction, the lateral direction, and the height direction.
- the glass rod 11 is centered on a Y-shaped bifurcated leg 21 and has a cylindrical sleep 22 which can rotate about each of these legs. Since the sleeve 22 is rotated with the axial movement of the glass rod 11, the glass rod 11 is smoothly supported without obstructing the axial movement of the glass rod 11.
- the sleeve 22 by forming the sleeve 22 with carbon, even if the sleeve of the sleeve 22 adheres to the glass rod, the glass port 11 is flame-cleaned. This makes it possible to prevent impurities from remaining on the surface.
- the free end of the long glass rod 11a on the long side is supported by the Y-shaped support member 18 provided in the intermediate portion of the lathe device 12, and the glass is supported.
- the rod By supporting the rod with the two-point support, it is possible to prevent stress from being concentrated on the gripping portion of the chuck 16.
- the load of the glass rod 11 is reduced by the support 18 formed in the middle. Since they can be dispersed, the installation work can be facilitated.
- FIG. 4 is a diagram showing another embodiment of the present invention. This embodiment is an example in which supports 18 are provided on both sides of the dividing position of the glass rod 11. If the glass rod 11 is made longer, both the left and right glass rods 11a and 11b, which are divided into two, may become longer. Therefore, by disposing the support members 18 for both the left and right glass rods, both glass rods can be supported safely and reliably.
- the glass rod as a starting material used for manufacturing a glass base material for an optical fiber has been described.
- the lathe device 12 may be provided with an optical fiber base made of a transparent glass.
- the present invention can be used not only for a glass rod for manufacturing a glass base material for an optical fiber, but also for supporting other large glass rods in cutting. Industrial applicability
- the long glass rod is safely and securely supported without causing cracks or breaks in the long glass rod.
- a large-sized optical fiber glass preform can be manufactured.
- the support for supporting the glass rod can be formed of a simple Y-shaped support that can be additionally provided to the conventional cutting device, the cost does not increase. It can be easily implemented.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01274152A EP1396476A4 (en) | 2001-04-16 | 2001-11-22 | GLASS CUTTING METHOD AND CORRESPONDING DEVICE |
KR1020037013497A KR100573202B1 (ko) | 2001-04-16 | 2001-11-22 | 유리막대의 절단 방법 및 이 방법에 사용되는 절단 장치 |
JP2002583341A JP4164655B2 (ja) | 2001-04-16 | 2001-11-22 | ガラスロッドの分断方法およびこれに用いられる分断装置 |
US10/474,823 US6978641B2 (en) | 2001-04-16 | 2001-11-22 | Method for cutting glass rod and cutting device for use therein |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001117086 | 2001-04-16 | ||
JP2001-117086 | 2001-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002085804A1 true WO2002085804A1 (fr) | 2002-10-31 |
Family
ID=18967713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/010224 WO2002085804A1 (fr) | 2001-04-16 | 2001-11-22 | Procede de decoupe de verre et dispositif correspondant |
Country Status (7)
Country | Link |
---|---|
US (1) | US6978641B2 (ja) |
EP (1) | EP1396476A4 (ja) |
JP (1) | JP4164655B2 (ja) |
KR (1) | KR100573202B1 (ja) |
CN (1) | CN1500068A (ja) |
TW (1) | TW593179B (ja) |
WO (1) | WO2002085804A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092807A1 (ja) * | 2004-03-25 | 2005-10-06 | Shin-Etsu Chemical Co., Ltd. | 光ファイバ用ガラス母材の加工方法及び加工装置 |
JP2006213552A (ja) * | 2005-02-02 | 2006-08-17 | Sumitomo Electric Ind Ltd | ガラス母材の加工方法および加工装置 |
JP2007314372A (ja) * | 2006-05-25 | 2007-12-06 | Sumitomo Electric Ind Ltd | 加工装置及び加工方法 |
JP2022001548A (ja) * | 2020-06-04 | 2022-01-06 | ゲレスハイマー ビュンデ ゲゼルシャフト ミット ベシュレンクテル ハフツングGerresheimer Buende GmbH | ガラス容器を製造する方法および設備ならびに空気式支承体 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100497732B1 (ko) * | 2002-07-20 | 2005-06-28 | 엘에스전선 주식회사 | 광섬유 모재 제조장치 및 이를 이용한 광섬유 모재제조방법 |
CN102107331A (zh) * | 2011-01-05 | 2011-06-29 | 中南大学 | 光纤定位切割方法及其装置 |
US10538455B2 (en) * | 2017-10-23 | 2020-01-21 | OFS Fltel, LLC | System and method for straightening and elongating a glass core rod |
CN107671355A (zh) * | 2017-10-24 | 2018-02-09 | 佛山市三水兴达涂料有限公司 | 一种耐腐蚀钢材料的加工装置及加工方法 |
CN112250285A (zh) * | 2020-09-21 | 2021-01-22 | 久智光电子材料科技有限公司 | 一种光棒调直装置 |
CN112692910B (zh) * | 2020-12-09 | 2022-09-09 | 光惠(上海)激光科技有限公司 | 一种热辅助式光纤切割方法及其光纤切割机 |
CN117067407B (zh) * | 2023-08-17 | 2024-04-16 | 安徽高昌硅碳科技发展有限公司 | 一种大直径超壁厚石英管材的旋转切割设备及方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443914A (en) * | 1977-09-14 | 1979-04-06 | Toyotarou Hashimoto | Method of cutting glass tube |
EP0999189A1 (en) * | 1998-11-05 | 2000-05-10 | Shin-Etsu Chemical Co., Ltd. | Process and apparatus for drawing a preform and for drawing an optical fibre from the drawn preform |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2726547B1 (fr) * | 1994-11-08 | 1997-01-03 | Alcatel Fibres Optiques | Dispositif de soutien d'une preforme, installation de fabrication ou de recharge d'une preforme, pourvue d'un tel dispositif, procedes mis en oeuvre dans une telle installation, preforme realisee selon de tels procedes |
FR2753699B1 (fr) * | 1996-09-24 | 1998-11-20 | Procede de fabrication d'une preforme pour fibre optique | |
DE19915509C1 (de) * | 1999-04-07 | 2000-06-08 | Heraeus Quarzglas | Verfahren für die Herstellung eines zylinderförmigen Bauteils aus Quarzglas und dafür geeignete Vorrichtung |
-
2001
- 2001-11-22 WO PCT/JP2001/010224 patent/WO2002085804A1/ja not_active Application Discontinuation
- 2001-11-22 CN CNA018231438A patent/CN1500068A/zh active Pending
- 2001-11-22 KR KR1020037013497A patent/KR100573202B1/ko active IP Right Grant
- 2001-11-22 JP JP2002583341A patent/JP4164655B2/ja not_active Expired - Fee Related
- 2001-11-22 EP EP01274152A patent/EP1396476A4/en not_active Withdrawn
- 2001-11-22 US US10/474,823 patent/US6978641B2/en not_active Expired - Lifetime
- 2001-12-14 TW TW090131036A patent/TW593179B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443914A (en) * | 1977-09-14 | 1979-04-06 | Toyotarou Hashimoto | Method of cutting glass tube |
EP0999189A1 (en) * | 1998-11-05 | 2000-05-10 | Shin-Etsu Chemical Co., Ltd. | Process and apparatus for drawing a preform and for drawing an optical fibre from the drawn preform |
Non-Patent Citations (1)
Title |
---|
See also references of EP1396476A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092807A1 (ja) * | 2004-03-25 | 2005-10-06 | Shin-Etsu Chemical Co., Ltd. | 光ファイバ用ガラス母材の加工方法及び加工装置 |
CN1934039B (zh) * | 2004-03-25 | 2010-09-29 | 信越化学工业株式会社 | 光纤用玻璃母材的加工方法及加工装置 |
JP2006213552A (ja) * | 2005-02-02 | 2006-08-17 | Sumitomo Electric Ind Ltd | ガラス母材の加工方法および加工装置 |
JP2007314372A (ja) * | 2006-05-25 | 2007-12-06 | Sumitomo Electric Ind Ltd | 加工装置及び加工方法 |
JP2022001548A (ja) * | 2020-06-04 | 2022-01-06 | ゲレスハイマー ビュンデ ゲゼルシャフト ミット ベシュレンクテル ハフツングGerresheimer Buende GmbH | ガラス容器を製造する方法および設備ならびに空気式支承体 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2002085804A1 (ja) | 2004-08-12 |
US6978641B2 (en) | 2005-12-27 |
KR100573202B1 (ko) | 2006-04-24 |
US20040129027A1 (en) | 2004-07-08 |
JP4164655B2 (ja) | 2008-10-15 |
KR20030092072A (ko) | 2003-12-03 |
EP1396476A4 (en) | 2006-12-06 |
CN1500068A (zh) | 2004-05-26 |
EP1396476A1 (en) | 2004-03-10 |
TW593179B (en) | 2004-06-21 |
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